The competition picked up as darkness fell during the 10th hour of the Mobil 1 Twelve Hours of Sebring, with on-track passes for the lead in all three classes midway through the segment.
Jonathan Bomarito pitted while leading in the off-sequence No. 55 Team Joest Mazda early in the 10th hour, allowing Mike Conway in the No. 31 Cadillac and Nicolas Lapierre in the No. 22 Tequila Patron ESM Nissan Onroak DPi to resume their battle for the lead.
Nine laps later, Lapierre got to the inside of Conway entering Turn 17 and emerged with the lead. Meanwhile, Bomarito passed Matt McMurray’s No. 90 Spirit of Daytona Cadillac to take third place, 21 seconds behind and closing.
2h 34m remaining at the #Sebring12 and @Nico_Lapierre has made it around the No. 31 and is back in the lead of the race! Watch how he made the move in the No. 22 @Nissan-powered @PatronESM car. pic.twitter.com/uj0vudt33p
— Nissan NISMO (@NISMO) March 18, 2018
Almost simultaneously, Toni Vilander took the GTLM lead in the No. 62 Ferrari 488 GTE, passing Patrick Pilet in the No. 911 Porsche 911 RSR. Vilander could not build up an advantage, though, with Pilet remaining less than a second behind the Ferrari. There was a long stop for Richard Westbrook while turning the No. 67 Ford GT over to Ryan Briscoe, dropping the Ford to sixth.
GTD also saw an on-track lead change, with Madison Snow in the No. 48 Lamborghini passing Trent Hindman in the No. 86 Acura.
Lapierre pitted with the lead at the nine-hour, 30-minute mark, and stayed in the car during the routine stop. Conway pitted while leading two laps later, also remaining in the No. 31 car, followed by Jordan Taylor’s fourth-place Cadillac.
That allowed Bomarito to return to the lead in the No. 55 Mazda, ahead of Lapierre by 45 seconds – although the Nissan built up a 14-second advantage over third-place Conway.
Bomarito pitted at the nine-hour, 45-minute mark, turning the No. 55 Mazda over to Spencer Pigot for the stretch run.
That returned the lead to Lapierre, with a 13-second advantage of Conway, with Pigot 43 seconds behind.
As action reached the 10-hour mark, Lapierre led Conway by 13.817s, with Pigot 48.555s back in third and Jordan Taylor fourth, 49.328s back. Vilander led Pilet by 1.263s in GTLM, while Snow led Aschenbach by 4.627s in GTD.