The 10 guys still standing on the court at 9:58 p.m. Thursday would’ve been forgiven for needing to collapse after this marathon.

The fall, though, has been especially far for Seattle University.

Isiah Umipig, Seattle record-setting sharpshooter, swished a tying three-pointer with 3.3 seconds left in regulation against Chicago State to force overtime, where the drama dragged on (and on and on).

The Redhawks blew a five-point lead in the first overtime, rallied from a five-point deficit in the second overtime, then found themselves at the bottom of the Western Athletic Conference men’s basketball standings after the third overtime, which ended in an exhausting 84-77 victory for Chicago State before a crowd of 1,689 Thursday night at KeyArena.

“We’ve got to let that one burn for a bit,” Seattle coach Cameron Dollar said. “Then we’ve got to get back up on the horse.”

Seattle (12-14 overall) dropped to 4-9 in the WAC with three regular-season games remaining. The Redhawks are 1-6 in conference play at home entering Saturday night’s home finale against Idaho.

Chicago State (12-16, 7-6 WAC) came into the game with a 3-12 record on the road.

For a while, at least, it looked like Seattle had cleaned up some of its late-game messes.

First, Clarence Trent grabbed a broom. A minute later, the Seattle forward really cleaned up — throwing down an impressive dunk to put back a Umipig miss and give Seattle a needed spark early in the second half.

The spark could only last so long.

Chicago State pressed and trapped Seattle at every turn in the overtimes, double- and triple-teaming Umipig, who finished with a game-high 23 points but was held scoreless in the third overtime.

Seattle finished with 26 turnovers and shot just 31.6 percent (24 of 76) from the field. The teams combined to commit 51 fouls, with two players from each team fouling out, including Seattle’s starting point guard, D’Vonne Pickett Jr. late in regulation.

Umipig’s three at the end of regulation tied the score at 55-55. His 90 made three-pointers this season are a school single-season record.

After the first overtime, the score was tied at 64.

After two overtimes, the score was tied at 70.

Chicago State then outscored Seattle 14-7 in the third overtime.

Seattle, in its first meeting with the new Western Athletic Conference rival, had a significant size advantage over Chicago State, whose tallest starter was listed at 6 feet 6. Still, Seattle allowed 21 offensive rebounds, and several were damaging in the overtimes.

Clarke Rosenberg and Matt Ross had 17 points each for Chicago State. Jarell Flora had 15 points for Seattle and Trent had 16 rebounds.

The Redhawks close the regular season with a rematch at Chicago State.

Note

• A moment of silence was observed before the game in honor of Ed O’Brien, the former Seattle U basketball and baseball star who died a week ago at age 83. O’Brien, the school’s athletic director from 1958-80, sat courtside at the Redhawks’ previous home game against Grand Canyon the night before his death.

• Seattle U’s final home game Saturday against Idaho will have a live ROOT Sports telecast at 7 p.m.

Adam Jude: 206-464-2364

or ajude@seattletimes.com.

On Twitter: @a_jude