Allgaier wins Xfinity regular-season finale

Justin Allgaier pulled away off the final restart and won the NASCAR Xfinity Series race at Chicagoland Speedway in Joliet, Ill. Allgaier, from nearby Riverton, won for the second time this season in NASCAR’s second-tier series. JR Motorsports had a banner day with Allgaier’s win and the official coronation of Elliott Sadler’s regular-season championship.

William Byron and Michael Annett give JR Motorsports four drivers in the Xfinity Series playoffs. Byron, who will replace Kasey Kahne for Hendrick Motorsports in NASCAR’s top series next year, is the Xfinity points leader entering the postseason, which opens next week at Kentucky Speedway.

Sebastian Vettel won the pole position for the Singapore Grand Prix, while championship rival Lewis Hamilton struggled to a fifth-place finish. Vettel’s 49th career pole came on the Marina Bay track where he’s won four times and positions him to reclaim the season points lead from Hamilton. It is one of the three hardest tracks on which to pass in Formula One.

International Olympic Committee President Thomas Bach said he remains confident the Winter Games will go on as scheduled in South Korea despite growing tensions in the region, including North Korea’s ballistic missile test this week. Bach said at IOC meetings in Lima, Peru, that the committee is monitoring deliberations of the U.N. Security Council, which condemned the North Korean test. The Olympics are scheduled for Feb. 8-25 in Pyeongchang. Unbeaten British boxer Billy Joe Saunders, who had hoped to challenge the winner of Saturday’s mega-fight between Gennady Golovkin and Canelo Alvarez, retained his WBO middleweight title with a unanimous decision over American Willie Monroe Jr . in London, improving to 25-0. Golovkin-Alvarez ended in a draw.

Nicolas Mahut and Pierre Hugues Herbert beat Filip Krajinovic and Nenad Zimonjic 6-1, 6-2, 7-6 (3) in doubles to give France a 2-1 lead over Serbia in a Davis Cup semifinal at Lille, France. In the other semifinal at Brussels, John Peers and Jordan Thompson defeated Arthur de Greef and Ruben Bemelmans 6-3, 6-4, 6-0 to give Australia a 2-1 lead over Belgium.

Qualifier Zarina Diyas of Kazakhstan outlasted defending champion Christina McHale 6-4, 0-6, 6-3 to advance to the final of the Japan Women’s Open against Japan’s Miyu Kato, who beat Croatia’s Jana Fett 4-6, 7-6 (1), 6-4.

Tunisia won its second African basketball championship, dethroning Nigeria with a 77-65 victory in the final at Rades, Tunisia.