Avondale, Ariz. — Crashes in consecutive weeks had backed Christopher Bell into a corner that jeopardized his strong rookie season in the Xfinity Series.

But Bell thrives in must-win moments, and Saturday at ISM Raceway outside of Phoenix was another example of the young driver delivering when everything was on the line. Bell won — the only result that would have advanced him into the championship round — and will now race for a second NASCAR national championship.

Bell won the Truck Series title last year, moved to the Xfinity Series this season in a Toyota from Joe Gibbs Racing, and his victory Saturday was a series-high seventh of the season. Had he not won, though, two weeks of bad luck would have wiped out his season.

“The pressure was on and I am just one of those guys who does really well in those situations,” Bell said. “Everything is on the line and I am just thankful I pulled through for my team. These guys are the ones who build the race cars that are going to win, whether I am driving them or not.”

The Gibbs organization is indeed the most dominant in the Xfinity Series but was in danger of missing out on the title race at Homestead-Miami Speedway had Bell not won Saturday. Bell started the race seventh in the standings and the win gives him a chance to add more hardware to his decorated first season. Bell’s seven wins are the most for an Xfinity regular since Dale Earnhardt Jr. also won seven times in 1998.

The championship four next Saturday are Bell, Cole Custer, Daniel Hemric and Tyler Reddick. The group represents all three manufacturers with a Ford driver, Toyota driver and two Chevrolet drivers, and come from four teams. Bell drives for Gibbs, Custer for Stewart-Haas Racing, Hemric for Richard Childress Racing and Reddick for JR Motorsports.

While Reddick did move on to ensure a JR Motorsports car will race for the title, the organization missed out with drivers Justin Allgaier and Elliott Sadler. Allgaier was the regular-season champion with five victories, but a late-race tire problem spoiled his finish and he dropped below the cutoff line.

Sadler, who was second in the standings at the start of the race, finished 11th and also dropped out of contention. The veteran is retiring after next week’s finale and had hoped to close his NASCAR stint with a shot at the championship that has eluded him his entire career.

Indy return

Two-time Formula One champion Fernando Alonso and his McLaren team will return to the Indianapolis 500 next year.

Alonso said he wants to be the second driver in history to win the unofficial triple crown of motorsport with a victory at the historic American speedway.

Alonso and McLaren made the announcement at the Brazilian Grand Prix. The Spanish driver, who qualified 18th for Sunday’s race at Interlagos, is retiring from F1 after the Abu Dhabi season-closer on Nov. 25.

Alonso and McLaren, working with IndyCar team Andretti Autosport, competed in Indianapolis in 2017. Alonso led parts of the race before abandoning it.

Hamilton takes pole

Lewis Hamilton said this week his hunger for more Formula One glory will not stop at his fifth world championship. He’s proving it at the Brazilian Grand Prix.

The Mercedes driver clocked the lap record at Interlagos in qualifying to earn pole position for the 10th time in 20 races this year. His performance boosts his team’s chances of beating Ferrari for the constructors’ championship, too.

Hamilton achieved his 82nd pole position in a record 1 minute, 7.281 seconds, edging Ferrari’s Sebastian Vettel by 0.093 seconds.

Valtteri Bottas of Mercedes was third, only 0.160 seconds behind his teammate, and his countryman Kimi Raikkonen of Ferrari was fourth.

Mercedes leads Ferrari in the constructors’ championship by 55 points. Hamilton’s pole was the 100th for the team.

The Brazilian race is the penultimate GP of the season, with Abu Dhabi closing it on Nov. 25.