INDIANAPOLIS -- Ty Gibbs finally figured out how to defeat A.J. Allmendinger in Indianapolis. He made it to the front during the third stage of Saturday's Xfinity Series race -- then pulled away from the recent king of road courses.
But it wasn't easy ... and it wasn't dry.
The race was red-flagged, in fact, for nearly 45 minutes because of lightning, which was followed by heavy rain that saturated the track. When racing resumed a rainbow appeared near the third turn of Indy's 2.5-mile oval and the cars were running on rain tires, which came off quickly as the track dried.
Gibbs, 20, drove into Victory Lane for the first time this season by outlasting Sam Mayer to the finish line by more than seven seconds and relegating Allmendinger, the defending race champ and pole winner, to third. Gibbs now has 13 career Xfinity wins.
"Definitely about time, really cool to get one here at the Brickyard," the Joe Gibbs Racing driver said. "Awesome car, great car. The team did such a great job, this is just so special."
Recently, Allmendinger has been virtually untouchable on Indy's 14-turn, 2.439-mile course and has finished in the top three for three consecutive Xfinity races at Indy. Last year's win also came from the pole.
This time, as Allmendinger raced again as his wife, Tara, was expecting the couple's first child. He opted to race anyway -- and made it pay off yet again by winning the first two stages before fading late and finishing more than 10 seconds off the pace.
He'll face an even more daunting challenge Sunday, when he starts from the No. 26 spot.
On Saturday, Allmendinger took control of the race, leading for 21 laps and seemingly making all the right moves as Brad Perez's stopped car brought out another yellow flag in the second stage.
But once Gibbs moved past Allmendinger in Stage 3, it was all over as the sun set over the speedway's front straightaway -- just about an hour's drive away from the New Castle, Indiana, track where Gibbs used to drive go-karts.
"We've got the Brickyard, let's go," Gibbs shouted before explaining what he learned from Saturday's race. "Just go win."
Gibbs is starting 10th on Sunday. Xfinity Series points leader John Hunter Nemechek finished 13th with four races remaining before the 12-driver playoffs begin.
The Associated Press contributed to this report.