Andrew Luck threw for 222 yards and two touchdowns and the Indianapolis Colts raced out to a big lead and cruised to a 21-7 win over the Houston Texans in the wildcard game on Saturday.

Luck put on a show in his hometown, throwing for 191 yards and two touchdowns before halftime to help the Colts build a 21-0 lead. Indianapolis advances to face the top-seeded Kansas City Chiefs in the divisional round next weekend.

Houston, who overcame a 0-3 start to win the AFC South, gave up too many big plays and couldn’t get anything going on offense in the first half to fall into a huge hole. Deshaun Watson, who was sacked an NFL-leading 62 times in the regular season, was sacked three times and hit eight more times in a disappointing playoff debut. He finished with 235 yards passing with a touchdown and an interception.

The Colts, who opened the season 1-5, continued an impressive run by winning their fifth straight and for the 10th time in 11 games. It was another good game in a splendid season for Luck. He threw for 4,593 yards and 39 touchdowns in the regular season after missing all of 2017 with a shoulder injury.

In Saturday’s later game, Ezekiel Elliott rushed for 137 yards and the go-ahead touchdown in the fourth quarter, and the Dallas Cowboys hung on for a 24-22 win over the Seattle Seahawks.

The playoff win by the Cowboys was the first for Elliott and quarterback Dak Prescott on their second try after losing a divisional game as rookies two years ago. Dallas will play either New Orleans or the Los Angeles Rams in the divisional round next weekend.

The loss ended a run of nine straight victories in playoff openers for the Seahawks. The Elias Sports Bureau says it was the longest streak in NFL history. Dallas’ defense, ranked in the top 10 most of the season, mostly kept quarterback Russell Wilson under control and handed him his first loss in four wildcard games.

