ANN ARBOR — After three lopsided wins to start the season, Michigan stumbled in its first crunch-time test on Friday night.

Michigan faltered down the stretch in an upset loss to Long Beach State, 94-86 at Crisler Center.

Late-game execution was a major issue for the Wolverines last season. They were 4-13 in games by decided by six points or fewer or that went to overtime.

While they worked on similar situations all offseason — and overhauled their roster — it didn’t show on Friday.

With 27 seconds left and Long Beach up two, Long Beach’s Messiah Thompson missed the front end of a one-and-one, only for a teammate to tip in the miss. Nimari Burnett missed a quick-trigger 3 at the other end, and that was it.

Early on, it looked like the Wolverines might run away with another blowout. They led throughout the first half, and by as many as 16 points. But Long Beach’s uptempo offense kept pace. Michigan led 50-48 at the half, and the Beach grabbed a lead a few minutes into the second half.

It was close the rest of the way, with Michigan leading by four with four minutes left.

Michigan couldn’t overcome Long Beach’s 56-percent shooting nor the 35 points from guard Marcus Tsohonis, who made 12 of 19 shots. The Beach improved to 2-2.

Michigan wasted a strong performance by Olivier Nkamhoua, who finished with a team-high 22 points (16 in the second half) and 11 rebounds. His athleticism and offensive rebounding were key for stretches in the second half, but ultimately not enough.

Dug McDaniel had 20 points and six assists for Michigan. Tray Jackson added 17 points in 20 minutes off the bench.

Michigan (3-1) must regroup before a trip to the Bahamas next week for the Battle 4 Atlantis, opening on Wednesday against Memphis. The defense, one would assume, has to improve.

Three straight layups gave Long Beach its first lead, 54-52, a few minutes into the second half. Tsohonis swished a deep triple and delivered a no-look bounce pass to give the Beach a 59-57 edge. Terrance Williams II responded with a 3, and back and forth the two teams went.

Easy baskets helped the Beach go up 69-64 with 12:29 left. For the first time in this young season, Michigan was in a battle relatively late in the game.

The Beach went up six as Michigan went nearly four minutes without a made field goal. Will Tschetter ended the drought. The teams traded careless turnovers, leading to a Nkamhoua dunk. Michigan got within two multiple times in subsequent possessions, finally tying it on a Nkamhoua bucket with 5:48 left. His emphatic putback jam gave Michigan the lead once again.

Three offensive rebounds in one possession culminated in another Nkamhoua stuff, this one through a foul. His free throw made it 80-76 with 4:28 left.

The Beach scored the next five to retake the lead with 2:55 remaining. Nkamhoua answered with another bucket as the teams continued to trade leads.

Michigan was down 3 with 90 seconds left and the ball. Nkamhoua tried to find Tarris Reed Jr. on a high-low pass that got stolen. Long Beach called timeout with a minute left and, predictably, went to Tsohonis, who scored inside.

Down five, McDaniel lost the ball, only for Long Beach to get called for traveling. Michigan got it to Nkamhoua, who was stuffed at the rim in a play often called a held ball. Instead, Nkamhoua kicked to McDaniel for a 3. Michigan was within two with 30 seconds left.

That’s when Thompson — after two quick fouls — went to the foul line in a deafening Crisler Center. He missed, but no Wolverine blocked out Aboubacar Traore, who tapped the ball back over the rim. Michigan had emphasized defensive rebounding entering the game, after allowing 27 offensive boards to St. John’s on Monday night. Michigan did a much better job on Friday but couldn’t get the rebound it needed most.

At the other end, Burnett’s rushed 3 missed, and Long Beached sealed the game at the foul line.

Burnett picked up his second foul with 8:05 left in the first half and sat the rest of the half, which didn’t help.

Michigan had plenty of offensive highlights early. McDaniel picked up a loose ball and pushed it ahead to Nkamhoua, who caught and passed in one fluid motion to a cutting Burnett for a dunk. McDaniel and Burnett followed with 3s, and Michigan led 17-5 before the first media timeout.

Michigan went up 23-7 on a deep McDaniel 3. The Beach answered with eight quick points to stay in contact. Jackson ended the run with a corner 3, but Long Beach kept chipping away, cutting the deficit to just three, 34-31, with six minutes left in the half.

That was the margin when Nkamhoua found a cutting Jackson for a layup and McDaniel hit another stepback 3.

Michigan led 50-48 the break, with both teams sinking six 3s. The Beach finished with eight triples; Michigan with nine. Michigan’s offense, through four games, has not been a problem.