2023 Sonsio Grand Prix

2023 Sonsio Grand Prix at Road America logo

Road America
June 18, 2023

Use the tabs or menu above to view session results, schedule, entrant facts, weather forecast, track facts and history.

Race Top Five

RankDriverCar No.Laps LedPoints
1Alex Palou101051
2Josef Newgarden2-40
3Pato O'Ward5-35
4Scott Dixon9-32
5Colton Herta263334

Visit the Results tab for full results.

Passing Analysis

Miles Completed5824.31
Passing Index*7.62
Position Passes386
Position Passing Index*6.63
* Passing Index (PI) is number of passes per 100 miles completed. Position Passing Index (PPI) is number of position passes per 100 miles completed. For historical passing analysis, visit the History tab.

Post-Race Analysis

Box ScoreView PDF
Event SummaryView PDF
Lap ChartView PDF
Leader Lap SummaryView PDF
Pit Stop SummaryView PDF
Top Section TimesView PDF
Section ResultsView PDF




RankDriverCar No.StartLapsTotal TimeLaps LedStatusPointsAvg. SpeedPit Stops
1Alex Palou1035501:50:04.664010Running51120.3353
2Josef Newgarden245501:50:09.2250-Running40120.2523
3Pato O'Ward525501:50:11.4189-Running35120.2123
4Scott Dixon9235501:50:11.6358-Running32120.2084
5Colton Herta2615501:50:15.596833Running34120.1363
6Marcus Ericsson895501:50:16.1848-Running28120.1253
7Christian Lundgaard4575501:50:20.5475-Running26120.0463
8Scott McLaughlin3185501:50:20.9462-Running24120.0393
9Kyle Kirkwood2765501:50:22.2120-Running22120.0164
10Alexander Rossi755501:50:24.3011-Running20119.9783
11Graham Rahal15145501:50:26.1370-Running19119.9453
12Rinus VeeKay21155501:50:26.7694-Running18119.9344
13Will Power12225501:50:30.33347Running18119.8697
14Simon Pagenaud60205501:50:36.0932-Running16119.7653
15Helio Castroneves06265501:50:38.2872-Running15119.7254
16Santino Ferrucci14115501:50:38.9640-Running14119.7133
17Ryan Hunter-Reay20275501:50:47.1300-Running13119.5664
18Callum Ilott77175501:50:47.6175-Running12119.5573
19Agustin Canapino78215501:50:49.4649-Running11119.5244
20Felix Rosenqvist6165501:50:53.7537-Running10119.4474
21Benjamin Pedersen55105501:50:56.6403-Running9119.3954
22Sting Ray Robb51255501:51:14.3294-Running8119.0794
23Devlin DeFrancesco29125501:51:28.3048-Running7118.8304
24Marcus Armstrong1185401:50:15.84055Running7117.9474
25Romain Grosjean28195401:51:19.6456-Running5116.8215
26Jack Harvey30245401:51:30.3355-Running5116.6347
27David Malukas18132400:52:04.6252-Off Course5110.9922
— Race: Results (PDF) | Back to the session list

Race Notes
  • The 2023 Sonsio Grand Prix at Road America was 55 laps on the 4.014-mile road course totaling 220.77 miles. The pit road speed was dual stage with 90 mph and 45 mph zones. The race started the third time past the flag stand with pole sitter Colton Herta gridded drivers' left.
  • The start was double file and the restarts were single file. The race leader accelerated for restarts just before Turn 14.
  • The fuel window was 12–16 laps under green-flag conditions, depending on the type of tires being used.
  • All cars but those of Santino Ferrucci, David Malukas, Felix Rosenqvist, Callum Ilott, Romain Grosjean, Agustin Canapino, Scott Dixon, Jack Harvey, Sting Ray Robb, Helio Castroneves and Ryan Hunter-Reay started the race on black primary tires. Each car was required to use one set of new alternate red tires and one set of primary black tires during the race.
  • At 12:20 p.m. CDT, 10 minutes before the scheduled green flag time, the ambient temperature was 73 degrees with overcast skies. The track temperature was 107 degrees according to Firestone Racing.
  • At 12:23 p.m., Dave Wirth, Premier Truck Group's vice president of finance and insurance, gave the command, "Drivers, start your engines." All engines fired and all cars rolled onto the racetrack.
  • On Lap 1, Herta led the field off Turn 14 and onto the front straight. The No. 27 Andretti Autosport Honda of Kyle Kirkwood spun off course in Turn 1, bringing out the race's first full-course yellow flag. Leaders under the first caution were Herta, Alex Palou, Marcus Armstrong, Josef Newgarden and Alexander Rossi.
  • Employing an alternate strategy to get off the Firestone alternate tires as soon as possible, several cars pitted on Lap 2 including those of Rosenqvist, Dixon and Hunter-Reay.
  • The race resumed on Lap 3 and ran under a green flag until the second caution came out on Lap 12 just as leader Herta and chaser Palou hit the pits. The second full-course yellow flag was for the No. 28 Andretti Autosport Honda of Romain Grosjean which went off course at Turn 3.
  • On Lap 15, Herta led the field out of Turn 14 as the race restarted. Behind, the No. 30 Rahal Letterman Lanigan Honda of Jack Harvey went off course at Turn 14 and made like contact with the tire barrier. The incident brought out the third full-course yellow flag.
  • Lap 19 served as the penultimate restart lap with green-flag running lasting until Lap 25, when the No. 18 Dale Coyne Racing with HMD Honda of David Malukas stopped off course in Turn 8. Leaders at the time of the fourth and final caution were Herta, Newgarden, Palou, Rossi and O'Ward.
  • On Lap 26, under caution, the leaders pitted together except for the No. 11 Chip Ganassi Racing Honda of Marcus Armstrong which stayed out and inherited the race lead.
  • Green-flag racing resumed on Lap 28 with Armstrong leading until his pit stop on Lap 31 when he transferred the lead to Will Power, although Power was also on an alternate strategy. Power pitted two laps later, returning the race lead to Herta who went on to lead a race-high 33 laps.
  • Palou passed Herta for the lead in Turn 1 on Lap 49 and continued to lead the remaining laps. Palou led a total of 10 laps over the course of the 55-lap race.
  • Palou took the white flag with a 5.1758-second lead over Newgarden and crossed the finish line with a 4.5610-second margin of victory.
  • The win marked Palou's third victory of 2023 and the seventh win of his NTT IndyCar Series career. He extended his championship points advantage to 74.
  • Unofficial points after the Sonsio Grand Prix at Road America:
    1. Palou 324
    2. Ericsson 250
    3. Newgarden 243
    4. Dixon 226
    5. O'Ward 226
    6. McLaughlin 199
    7. Rossi 196
    8. Power 190
    9. Herta 183
    10. Kirkwood 164


RankDriverCar No.Best TimeOn LapBest SpeedTotal LapsDifferenceGap
1Alexander Rossi701:41.79179141.96013--.------.----
2Scott Dixon901:41.808012141.938130.01630.0163
3Will Power1201:42.032311141.626130.24060.2243
4Pato O'Ward501:42.045810141.607140.25410.0135
5Kyle Kirkwood2701:42.22338141.36190.43160.1775
6Christian Lundgaard4501:42.30695141.246120.51520.0836
7Jack Harvey3001:42.35849141.175120.56670.0515
8Marcus Ericsson801:42.43159141.074120.63980.0731
9Rinus VeeKay2101:42.48919140.995130.69740.0576
10Scott McLaughlin301:42.760510140.622120.96880.2714
11Sting Ray Robb5101:42.796011140.574121.00430.0355
12Marcus Armstrong1101:42.898412140.434121.10670.1024
13Simon Pagenaud6001:42.907411140.421121.11570.0090
14Josef Newgarden201:42.998510140.297141.20680.0911
15Agustin Canapino7801:43.10488140.153121.31310.1063
16Ryan Hunter-Reay2001:43.12217140.129111.33040.0173
17Alex Palou1001:43.234210139.977121.44250.1121
18Graham Rahal1501:43.25949139.943131.46770.0252
19Romain Grosjean2801:43.36408139.801101.57230.1046
20Colton Herta2601:43.442510139.695131.65080.0785
21Devlin DeFrancesco2901:43.657112139.406121.86540.2146
22Felix Rosenqvist601:43.777213139.244141.98550.1201
23David Malukas1801:43.800510139.213132.00880.0233
24Benjamin Pedersen5501:44.00684138.937122.21510.2063
25Helio Castroneves0601:44.124310138.780122.33260.1175
26Santino Ferrucci1401:44.40898138.402132.61720.2846
27Callum Ilott7701:44.91986137.72873.12810.5109
— Warm-up: Results (PDF) | Back to the session list

Session Notes
  • Warm-up for the 2023 Sonsio Grand Prix at Road America started on time at 9:15 a.m. CDT. As the session began, Race Control issued a penalty to Callum Ilott for taking a lap after the checkered flag in a previous session. Ilott was stripped of 10 minutes of practice time, to be served the final 10 minutes of warm-up.
  • Two red flags stopped the action:
    • At 9:22 a.m., the No. 20 Ed Carpenter Racing Chevrolet of Ryan Hunter-Reay spun off course in Turn 6.
    • At 9:30 a.m., the No. 28 Andretti Autosport Honda of Romain Grosjean spun in Turn 12.
  • Both drivers were assessed five-minute time penalties for being involved in red flags and both race cars had to be restarted by the AMR INDYCAR Safety Team.
  • Alexander Rossi ended the session with the fastest lap, a 1:41.7917 in the No. 7 Arrow McLaren Chevrolet.


Firestone Fast Six
RankDriverCar No.Best TimeBest SpeedBest LapTotal LapsDifferenceGap
1Colton Herta2601:40.1945144.22334--.------.----
2Pato O'Ward501:40.3643143.979440.16980.1698
3Alex Palou1001:40.4930143.795340.29850.1287
4Josef Newgarden201:40.9530143.140350.75850.4600
5Alexander Rossi701:41.1854142.811450.99090.2324
6Kyle Kirkwood27No Time0.000000.00000.0000
— Firestone Fast Six: Results (PDF) | Overall Results (PDF) | Back to session list

Qualifying Notes
  • Qualifying for the NTT P1 Award consists of three segments. In the first round, each group receives 12 minutes of track time. The fastest six cars from each group advance to Round 2 while the remaining cars are assigned positions 13 to 27. Group 1 drivers will occupy the odd-numbered positions while Group 2 drivers will occupy the even-numbered positions based on their fastest lap times. During Round 2, the 12 advancing cars receive 12 minutes of track time with the fastest six advancing to the Firestone Fast Six while the remaining cars are ranked in positions seven through 12 based on their fastest laps. During the Firestone Fast Six, the six cars receive eight minutes of guaranteed green-flag time. At the end of session, cars are ranked one through six based on their fastest laps.
  • Qualifying at Road America began on time at 12:55 p.m. CDT. The ambient temperature was 76 degrees with 56% humidity and partly cloudy skies. The track temperature was 110 degrees according to Firestone engineers.
  • All segments of knockout qualifying were without incident except for Group 2 which saw Ryan Hunter-Reay's No. 20 Ed Carpenter Racing Chevrolet run off course in Turn 14 and make contact with the tire barrier. Hunter-Reay was stripped of his two fastest laps and the ability to advance to Round 2.
  • Colton Herta, Alex Palou, Kyle Kirkwood, Pato O'Ward, Josef Newgarden and Alexander Rossi were fastest in Round 2 and advanced to the Firestone Fast Six for the NTT P1 Award.
  • After the checkered flag for Round 2, the engine in Kirkwood's No. 27 Andretti Autosport Honda expired, preventing him from competing in the third round of qualifying.
  • Herta ended the final round of qualifying with the fastest lap: 1:41.1945. The achievement marked Herta's 10th NTT IndyCar Series pole and his first since Toronto in 2022. Herta became the sixth different pole winner in eight races in 2023.
Round 2
RankDriverCar No.Best TimeBest SpeedBest LapTotal LapsDifferenceGap
1Colton Herta2601:40.5476143.71766--.------.----
2Alex Palou1001:40.5572143.703660.00960.0096
3Kyle Kirkwood2701:40.9322143.169660.38460.3750
4Pato O'Ward501:40.9393143.159560.39170.0071
5Josef Newgarden201:40.9716143.114770.42400.0323
6Alexander Rossi701:40.9948143.081660.44720.0232
7Christian Lundgaard4501:41.0480143.005460.50040.0532
8Marcus Armstrong1101:41.1737142.828670.62610.1257
9Marcus Ericsson801:41.2202142.762560.67260.0465
10Benjamin Pedersen5501:41.4989142.370660.95130.2787
11Santino Ferrucci1401:41.6314142.184661.08380.1325
12Devlin DeFrancesco2901:41.8277141.910551.28010.1963
— Round 2: Results (PDF) | Back to session list
Round 1 Group 2
RankDriverCar No.Best TimeBest SpeedBest LapTotal LapsDifferenceGap
1Pato O'Ward501:40.9158143.19366--.------.----
2Christian Lundgaard4501:41.0125143.056370.09670.0967
3Marcus Armstrong1101:41.0682142.977680.15240.0557
4Alexander Rossi701:41.1788142.820470.26300.1106
5Marcus Ericsson801:41.2830142.673680.36720.1042
6Alex Palou1001:41.2868142.668680.37100.0038
7Graham Rahal1501:41.5121142.352680.59630.2253
8Felix Rosenqvist601:41.5823142.253680.66650.0702
9Scott McLaughlin301:41.7005142.088570.78470.1182
10Simon Pagenaud6001:41.7257142.053680.80990.0252
11Will Power1201:41.9275141.771571.01170.2018
12Jack Harvey3001:41.9329141.764771.01710.0054
13Helio Castroneves0601:42.0399141.615571.12410.1070
14Ryan Hunter-Reay2001:44.1738138.714453.25802.1339
— Round 1 Group 2: Results (PDF) | Back to session list
Round 1 Group 1
RankDriverCar No.Best TimeBest SpeedBest LapTotal LapsDifferenceGap
1Colton Herta2601:40.5881143.65966--.------.----
2Benjamin Pedersen5501:41.2255142.755660.63740.6374
3Devlin DeFrancesco2901:41.2443142.728660.65620.0188
4Josef Newgarden201:41.3132142.631770.72510.0689
5Kyle Kirkwood2701:41.4400142.453550.85190.1268
6Santino Ferrucci1401:41.4723142.407360.88420.0323
7David Malukas1801:41.5204142.340770.93230.0481
8Rinus VeeKay2101:41.7420142.030661.15390.2216
9Callum Ilott7701:41.8005141.948661.21240.0585
10Romain Grosjean2801:41.8529141.875771.26480.0524
11Agustin Canapino7801:41.9247141.775661.33660.0718
12Scott Dixon901:42.2745141.290271.68640.3498
13Sting Ray Robb5101:42.6862140.724662.09810.4117
— Round 1 Group 1: Results (PDF) | Back to session list

Practice 2

RankDriverCar No.Best TimeOn LapBest SpeedTotal LapsDifferenceGap
1Alexander Rossi701:40.911212143.19914--.------.----
2Colton Herta2601:41.05849142.991120.14720.1472
3Felix Rosenqvist601:41.25729142.710130.34600.1988
4David Malukas1801:41.30109142.648150.38980.0438
5Marcus Armstrong1101:41.348813142.581150.43760.0478
6Santino Ferrucci1401:41.353412142.574140.44220.0046
7Pato O'Ward501:41.37696142.541110.46570.0235
8Kyle Kirkwood2701:41.38588142.52990.47460.0089
9Scott McLaughlin301:41.44939142.440140.53810.0635
10Rinus VeeKay2101:41.451714142.436160.54050.0024
11Christian Lundgaard4501:41.568212142.273150.65700.1165
12Josef Newgarden201:41.70959142.075130.79830.1413
13Jack Harvey3001:41.926912141.772151.01570.2174
14Benjamin Pedersen5501:42.016415141.648171.10520.0895
15Graham Rahal1501:42.072412141.570151.16120.0560
16Devlin DeFrancesco2901:42.086211141.551151.17500.0138
17Helio Castroneves0601:42.18727141.411141.27600.1010
18Callum Ilott7701:42.18868141.409131.27740.0014
19Ryan Hunter-Reay2001:42.280712141.282151.36950.0921
20Sting Ray Robb5101:42.297813141.258141.38660.0171
21Simon Pagenaud6001:42.34549141.192171.43420.0476
22Romain Grosjean2801:42.550212140.911151.63900.2048
23Marcus Ericsson801:42.89796140.434131.98670.3477
24Agustin Canapino7801:43.00539140.288162.09410.1074
25Will Power1201:43.70262139.34552.79140.6973
26Scott Dixon901:43.82283139.18332.91160.1202
27Alex Palou1001:46.27211135.97525.36092.4493
— Practice 2: Results (PDF) | Back to the session list

Session Notes
  • Practice 2 at Road America was 45 minutes in duration within a one-hour window starting at 9:55 a.m. CDT.
  • Five red flags paused the action:
    • Seven minutes after the green flag, the No. 10 Chip Ganassi Racing Honda of Alex Palou made contact with the barrier in Turn 14. Palou was able to climb from his race car without assistance from the AMR INDYCAR Safety Team. The session resumed at 10:08 a.m.
    • Five minutes later, the No. 9 Chip Ganassi Racing Honda of Scott Dixon and the No. 12 Team Penske Chevrolet of Will Power came together with each other in Turn 12. Both cars made further contact with the Turn 12 barrier. The incident was precipitated by a spin for Dixon. Green-flag running resumed at 10:24 a.m.
    • At 10:30 a.m., the No. 14 AJ Foyt Racing Chevrolet of Santino Ferrucci was stalled on track after a spin in Turn 12. Practice resumed with approximately 21 minutes remaining.
    • With six minutes left on the clock, the No. 26 Andretti Autosport Honda of Colton Herta was stopped in the Turn 12 runoff. The fourth red flag lasted for two minutes.
    • At 10:53 a.m., two minutes before the session's scheduled end time, the No. 60 Meyer Shank Racing Honda of Simon Pagenaud went off track at Turn 14 and made contact with the barrier. Practice did not resume.
  • In addition to five-minute time penalties for drivers involved in red flags, Devlin DeFrancesco was assessed a drive-through penalty for a pit speed violation at pit in.
  • Alexander Rossi ended Practice 2 with a 1:40.9112 in the No. 7 Arrow McLaren Chevrolet, 1.0452 seconds off the track record set by Dario Franchitti in 2000.

Practice 1

RankDriverCar No.Best TimeOn LapBest SpeedTotal LapsDifferenceGap
1Alexander Rossi701:41.77905141.97814--.------.----
2David Malukas1801:41.86524141.858160.08620.0862
3Alex Palou1001:41.948614141.742160.16960.0834
4Scott Dixon901:41.954418141.734180.17540.0058
5Pato O'Ward501:41.97787141.701150.19880.0234
6Marcus Ericsson801:42.042614141.611140.26360.0648
7Christian Lundgaard4501:42.053417141.596180.27440.0108
8Felix Rosenqvist601:42.06335141.583150.28430.0099
9Colton Herta2601:42.078913141.561130.29990.0156
10Marcus Armstrong1101:42.214617141.373210.43560.1357
11Graham Rahal1501:42.373117141.154170.59410.1585
12Devlin DeFrancesco2901:42.437214141.066140.65820.0641
13Santino Ferrucci1401:42.468016141.024170.68900.0308
14Sting Ray Robb5101:42.509721140.966220.73070.0417
15Scott McLaughlin301:42.579913140.870140.80090.0702
16Josef Newgarden201:42.601311140.840120.82230.0214
17Will Power1201:42.738214140.653150.95920.1369
18Romain Grosjean2801:42.841814140.511151.06280.1036
19Kyle Kirkwood2701:42.877312140.462131.09830.0355
20Helio Castroneves0601:43.030418140.254181.25140.1531
21Agustin Canapino7801:43.067916140.203171.28890.0375
22Ryan Hunter-Reay2001:43.136817140.109171.35780.0689
23Jack Harvey3001:43.17075140.063181.39170.0339
24Benjamin Pedersen5501:43.203615140.018241.42460.0329
25Callum Ilott7701:43.236812139.973141.45780.0332
26Rinus VeeKay2101:43.365516139.799171.58650.1287
27Simon Pagenaud6001:43.409215139.740151.63020.0437
— Practice 1: Results (PDF) | Back to the session list

Session Notes
  • Practice 1 for the 2023 Sonsio Grand Prix at Road America ran for its entire 75-minute duration without interruption.
  • At the start of the session, the ambient temperature was 67 degrees with overcast skies and 70% relative humidity. The track temperatures was 110 degrees according to Firestone engineers.
  • At the conclusion of practice, the No. 7 Arrow McLaren Chevrolet of Alexander Rossi was fastest with a 1:41.7790. Marcus Armstrong was the fastest rookie with a 1:42.2146 in the No. 11 Chip Ganassi Racing Honda.


Green Flag12:30 p.m. CDT *
Drivers Start Your Engines12:23 p.m.
Race Broadcast1 p.m. EDT on USA Network
Qualifying12:55 p.m. Saturday
Practice Sessions3–4:15 p.m. Friday
9:55–10:55 a.m. Saturday (45-minute session)
9:15–9:45 a.m. Sunday (warm-up)
Full Weekend ScheduleView PDF
Live Timing and ScoringINDYCAR Race Control and INDYCAR Mobile app (iOS, Android).
Radio BroadcastINDYCAR Radio Network, SiriusXM INDYCAR Nation 160, IndyCar.com and on the INDYCAR Mobile app (iOS, Android).
Video StreamingAll NTT IndyCar Series practice sessions, qualifying and races stream live on Peacock, NBC’s direct-to-consumer livestreaming product.
* All times are in Central Daylight Time unless otherwise noted. View the green-flag time in all time zones.

Starting LineupView Table
Qualifications GroupsView Table
Entry ListView Table
Spotter Guide
2023 Sonsio Grand Prix at Road America spotter guide
View Web | View PDF
Pit AssignmentsView PDF
Push-to-Pass Parameters200 seconds of total time with a maximum
time of 20 seconds per activation.
Tires Available per EntrySeven sets primary, four sets alternate for use during the race weekend. One additional set of primary tires may be used by teams fielding a rookie driver. Teams must use one set of primary and one set of new (sticker) alternate tires for at least two laps in the race.

Starting Lineup

SPCar No.DriverEngineTire
126Colton HertaHondaPrimary
25Pato O'WardChevroletPrimary
310Alex PalouHondaPrimary
42Josef NewgardenChevroletPrimary
57Alexander RossiChevroletPrimary
627Kyle KirkwoodHondaPrimary
745Christian LundgaardHondaPrimary
811Marcus Armstrong (R)HondaPrimary
98Marcus EricssonHondaPrimary
1055Benjamin Pedersen (R)ChevroletPrimary
1114Santino FerrucciChevroletAlternate
1229Devlin DeFrancescoHondaPrimary
1318David MalukasHondaAlternate
1415Graham RahalHondaPrimary
1521Rinus VeeKayChevroletPrimary
166Felix RosenqvistChevroletAlternate
1777Callum IlottChevroletAlternate
183Scott McLaughlinChevroletPrimary
1928Romain GrosjeanHondaAlternate
2060Simon PagenaudHondaPrimary
2178Agustin Canapino (R)ChevroletAlternate
2212Will PowerChevroletPrimary
239Scott DixonHondaAlternate
2430Jack HarveyHondaAlternate
2551Sting Ray Robb (R)HondaAlternate
2606Helio CastronevesHondaAlternate
2720Ryan Hunter-ReayChevroletAlternate
(R) Rookie
— Starting Lineup: PDF

Qualifications Groups

Group 1DriverGroup 2Driver
26Colton Herta7Alexander Rossi
18David Malukas6Felix Rosenqvist
14Santino Ferrucci11Marcus Armstrong
27Kyle Kirkwood5Pato O'Ward
21Rinus VeeKay3Scott McLaughlin
2Josef Newgarden45Christian Lundgaard
55Benjamin Pedersen30Jack Harvey
29Devlin DeFrancesco15Graham Rahal
77Callum Ilott06Helio Castroneves
51Sting Ray Robb20Ryan Hunter-Reay
28Romain Grosjean60Simon Pagenaud
78Agustin Canapino8Marcus Ericsson
9Scott Dixon12Will Power
10Alex Palou
— Qualifications Groups: PDF

Entry List

Car No.DriverHometownSponsorTeamEngine
2Josef NewgardenNashville, Tennessee, USAPPGTeam PenskeChevrolet
3Scott McLaughlinChristchurch, New ZealandSonsioTeam PenskeChevrolet
5Pato O'WardMonterrey, MexicoArrow McLarenArrow McLarenChevrolet
06Helio CastronevesSao Paulo, BrazilAutoNation / SiriusXMMeyer Shank RacingHonda
6Felix RosenqvistVärnamo, Swedenonsemi Arrow McLarenArrow McLarenChevrolet
7Alexander RossiNevada City, California, USAArrow McLarenArrow McLarenChevrolet
8Marcus EricssonKumla, SwedenHuski Ice SpritzChip Ganassi RacingHonda
9Scott DixonAuckland, New ZealandPNC BankChip Ganassi RacingHonda
10Alex PalouBarcelona, SpainThe American LegionChip Ganassi RacingHonda
11Marcus Armstrong (R)Christchurch, New ZealandRidgeline LubricantsChip Ganassi RacingHonda
12Will PowerToowoomba, AustraliaVerizonTeam PenskeChevrolet
14Santino FerrucciWoodbury, Connecticut, USAAJ Foyt Racing / Sexton PropertiesAJ Foyt RacingChevrolet
15Graham RahalNew Albany, Ohio, USAFifth Third BankRahal Letterman Lanigan RacingHonda
18David MalukasChicago, Illinois, USAHMD TruckingDale Coyne Racing with HMDHonda
20Ryan Hunter-ReayFort Lauderdale, Florida, USABitnile.comEd Carpenter RacingChevrolet
21Rinus VeeKayHoofddorp, NetherlandsDirect SupplyEd Carpenter RacingChevrolet
26Colton HertaValencia, California, USAGainbridgeAndretti AutosportHonda
27Kyle KirkwoodJupiter, Florida, USAAutoNationAndretti AutosportHonda
28Romain GrosjeanGeneva, SwitzerlandDelaware Life / DHLAndretti AutosportHonda
29Devlin DeFrancescoToronto, CanadaEVTECAndretti AutosportHonda
30Jack HarveyBassingham, EnglandMi-JackRahal Letterman Lanigan RacingHonda
45Christian LundgaardHedensted, DenmarkVivid Clear RxRahal Letterman Lanigan RacingHonda
51Sting Ray Robb (R)Palette, Idaho, USAbiohavenDale Coyne Racing with RWRHonda
55Benjamin Pedersen (R)Copenhagen, DenmarkAJ Foyt Racing / Sexton PropertiesAJ Foyt RacingChevrolet
60Simon PagenaudMontmorillon, FranceAutoNation / SiriusXMMeyer Shank RacingHonda
77Callum IlottCambridge, EnglandJuncos Hollinger RacingJuncos Hollinger RacingChevrolet
78Agustín Canapino (R)Arrecifes, ArgentinaJuncos Hollinger RacingJuncos Hollinger RacingChevrolet
(R) — Denotes Rookie of the Year candidate
— Entry List: PDF


Track TypePermanent road course
Length4.014 miles
Race Distance55 laps (220.77 miles)
Number of Turns14
Track Map
2023 Sonsio Grand Prix at Road America track map
Event Twitter Account & Hashtag@RoadAmerica, #SonsioGP

Driver Performance IndexView PDF
Last Six Wins— 2022: Josef Newgarden, Team Penske
— 2021: Alex Palou, Chip Ganassi Racing
— 2020 Race 2: Felix Rosenqvist, Chip Ganassi Racing
— 2020 Race 1: Scott Dixon, Chip Ganassi Racing
— 2019: Alexander Rossi, Andretti Autosport
— 2018: Josef Newgarden, Team Penske
Last Six Poles— 2022: Alexander Rossi, Andretti Autosport (1:44.8656)
— 2021: Josef Newgarden, Team Penske (1:46.0168)
— 2020 Race 2: Pato O'Ward, Arrow McLaren SP (1:44.8971)
— 2020 Race 1: Josef Newgarden, Team Penske (1:45.5191)
— 2019: Colton Herta, Harding Steinbrenner Racing (1:42.9920)
— 2018: Josef Newgarden, Team Penske (1:43.2026)
Qualifying Lap Record1:39.866, 145.924 mph (Dario Franchitti of Team Green on Aug. 19, 2000)

Historical Passing Analysis

YearMiles CompletedPassesPI*Position PassesPPI*
2020 Race 14873.001713.511633.34
2020 Race 24620.111723.721543.33
* Passing Index (PI) is number of passes per 100 miles completed. Position Passing Index (PPI) is number of position passes per 100 miles completed.