FRISCO, Texas — Eric Schmid threw for three touchdowns, including a 10-yarder to Ife Adeyi with 16 seconds left, and Sam Houston wrapped the longest and most unusual college football season with its first FCS national title, beating top-seeded South Dakota State 23-21 on a raindrenched Sunday.

Jequez Ezzard caught two touchdowns for No. 2 seed Sam Houston (10-0). He also had a 5-yard catch on fourth-and-3 to extend the final 16-play, 65-yard drive, after Schmid converted an earlier fourth-and-1 with a 9-yard run.

South Dakota State (8-2) went ahead 21-17 on Isaiah Davis’ third TD run, an 85-yarder with 5:41 left. Davis, who finished with 178 yards rushing on 14 carries, went down the sideline in front of the Jackrabbits bench, eluding half of the defense before breaking free to the end zone.

Sam Houston coach K.C. Keeler got his record 24th FCS playoff victory, and became the first coach to win FCS titles at multiple schools. He was the coach of his alma mater when Delaware won the 2003 title.