The track was dry as qualifying began but rain was falling to make conditions extra sketchy.
Bourdais started the ball rolling with 1m11.979s, before being beaten by Filipe Albuquerque’s Wayne Taylor Racing Acura, who produced 1m11.481s, then 1m10.751s and finally 1m10.661s.
But Bourdais wouldn’t be denied, unleashing a 1m10.439s to take his third pole of the season, beating Albuquerque by 0.222s.
Oliver Jarvis took third for Meyer Shank Racing, producing a final lap of 1m10.791s in his Acura ARX-05. Alex Lynn will start fourth in the second CGR car, ahead of the remaining Cadillac drivers, Tristan Nunez (Action Express) and Tristan Vautier (JDC-Miller).
Patrick Kelly took LMP2 pole for PR1 Mathiasen Motorsports on 1m14.340s, ahead of the sister team car of Steven Thomas, who escaped a wild early spin.
Jarett Andretti took LMP3 pole for Andretti Autosport, ahead of Josh Sarchet (MLT Motorsports) and Dan Goldburg (Performance Tech).
Snow takes GTD pole for BMW
In GTD, where there is no Pro class this weekend, the track was damp at the start but dried out quickly.
Paul Miller Racing’s BMW M4 of Madison Snow led the way when it mattered on 1m20.525s, two tenths clear of Stevan McAleer (Korthoff Mercedes), Roman De Angelis (Heart of Racing Aston Martin) and early pacesetter Robby Foley (Turner BMW).
Russell Ward (Winward Mercedes) will start fifth, ahead of the Lexuses of Frankie Montecalvo and Richard Heistand, the latter escaping the gravel after an early spin.
Qualifying results:
| Cla | Num | Driver | Class | Chassis | Time | Gap |
|---|---|---|---|---|---|---|
| 1 | 01 |
 Renger van der Zande  Sébastien Bourdais | DPi | Cadillac DPi | 1'10.439 | |
| 2 | 10 |
 Ricky Taylor  Filipe Albuquerque | DPi | Acura DPi | 1'10.661 | 0.222 |
| 3 | 60 |
 Oliver Jarvis Tom Blomqvist | DPi | Acura DPi | 1'10.791 | 0.352 |
| 4 | 02 |
 Earl Bamber Alex Lynn | DPi | Cadillac DPi | 1'10.995 | 0.556 |
| 5 | 31 |
 Pipo Derani Tristan Nunez | DPi | Cadillac DPi | 1'11.053 | 0.614 |
| 6 | 5 |
Tristan Vautier Richard Westbrook | DPi | Cadillac DPi | 1'11.083 | 0.644 |
| 7 | 52 |
Josh Pierson Patrick Kelly | LMP2 | ORECA LMP2 07 | 1'14.340 | 3.901 |
| 8 | 11 |
Steven Thomas Jonathan Bomarito | LMP2 | ORECA LMP2 07 | 1'15.276 | 4.837 |
| 9 | 81 |
 Henrik Hedman  Juan Pablo Montoya | LMP2 | ORECA LMP2 07 | 1'15.332 | 4.893 |
| 10 | 18 |
Dwight Merriman Ryan Dalziel | LMP2 | ORECA LMP2 07 | 1'16.077 | 5.638 |
| 11 | 8 |
 John Farano Will Stevens | LMP2 | ORECA LMP2 07 | 1'16.313 | 5.874 |
| 12 | 20 |
 Dennis Andersen Anders Fjordbach | LMP2 | ORECA LMP2 07 | 1'16.515 | 6.076 |
| 13 | 36 |
Jarett Andretti Gabby Chaves | LMP3 | Ligier JS P320 | 1'17.104 | 6.665 |
| 14 | 58 |
Dakota Dickerson Josh Sarchet | LMP3 | Ligier JS P320 | 1'17.441 | 7.002 |
| 15 | 38 |
Daniel Goldburg Rasmus Lindh | LMP3 | Ligier JS P320 | 1'17.788 | 7.349 |
| 16 | 74 |
Gar Robinson Felipe Fraga | LMP3 | Ligier JS P320 | 1'17.892 | 7.453 |
| 17 | 54 |
Jon Bennett Colin Braun | LMP3 | Ligier JS P320 | 1'18.448 | 8.009 |
| 18 | 30 |
Ari Balogh Garett Grist | LMP3 | Ligier JS P320 | 1'19.279 | 8.840 |
| 19 | 13 |
Orey Fidani Kuno Wittmer | LMP3 | Duqueine D08 | 1'19.819 | 9.380 |
| 20 | 33 |
Joao Barbosa Lance Willsey | LMP3 | Ligier JS P320 | 1'19.924 | 9.485 |
| 21 | 1 |
Bryan Sellers Madison Snow | GTD | BMW M4 GT3 | 1'20.525 | 10.086 |
| 22 | 32 |
Mike Skeen Stevan McAleer | GTD | Mercedes-AMG GT3 | 1'20.725 | 10.286 |
| 23 | 27 |
Roman De Angelis  Maxime Martin | GTD | Aston Martin Vantage GT3 | 1'20.822 | 10.383 |
| 24 | 96 |
Robby Foley Bill Auberlen | GTD | BMW M4 GT3 | 1'21.012 | 10.573 |
| 25 | 57 |
Russell Ward  Philip Ellis | GTD | Mercedes-AMG GT3 | 1'21.016 | 10.577 |
| 26 | 12 |
Frankie Montecalvo Aaron Telitz | GTD | Lexus RC F GT3 | 1'21.120 | 10.681 |
| 27 | 17 |
Jack Hawksworth Richard Heistand | GTD | Lexus RC F GT3 | 1'21.410 | 10.971 |
| 28 | 39 |
Robert Megennis Jeff Westphal | GTD | Lamborghini Huracan GT3 | 1'21.450 | 11.011 |
| 29 | 51 |
Ryan Eversley  Aidan Read | GTD | Acura NSX GT3 | 1'21.469 | 11.030 |
| 30 | 70 |
Brendan Iribe  Jordan Lee Pepper | GTD | McLaren 720S GT3 | 1'22.044 | 11.605 |
| 31 | 16 |
Ryan Hardwick Jan Heylen | GTD | Porsche 911 GT3 R | 1'22.652 | 12.213 |
| View full results | ||||||
