OKLAHOMA CITY (AP) — Shai Gilgeous-Alexander scored 15 points in one half of action, and the Oklahoma City Thunder rolled past the Dallas Mavericks 135-86 on Sunday to clinch the No. 1 seed in the Western Conference playoffs.

Oklahoma City finished with the same 57-25 record as the Denver Nuggets but own the tiebreaker. The Thunder hadn’t finished as the top seed since the 2012-13 season.

Aaron Wiggins scored 14 points and Chet Holmgren had 13 points and nine rebounds for the Thunder, who won their fifth straight to close the regular season.

The Thunder entered the day in a three-way tie with the Nuggets and Timberwolves for the best record in the Western Conference. It was the first time in NBA history that three teams entered the final day of the season tied for a conference lead.

The Thunder will have to wait for the Play-In Tournament’s conclusion to learn their first-round opponent.