No. 16 Michigan opened the Kyle Whittingham era with a stomach-churning 13-12 win over Western Michigan on Saturday, and the fallout is still spreading two days later after the Big Ten issued a formal explanation defending the officiating crew's decision to put time back on the clock for a game-deciding Hail Mary.

Trailing 12-6 and facing fourth down with no timeouts, Michigan quarterback Bryce Underwood heaved a Hail Mary into the end zone that appeared to fall incomplete as the stadium clock hit 0:00 on the NBC broadcast. Western Michigan players began celebrating what looked like the program's biggest win in decades. Officials sent the play to replay review, ruled that Broncos defender Micah Davis had touched the ball with one second still remaining, and put that second back on the clock. On the ensuing snap, Underwood connected with JJ Buchanan on a 47-yard touchdown for the final margin, according to CBS Sports.

The discrepancy between what fans watching on television saw and what officials reviewed became the story of opening weekend. Big Ten commissioner Tony Petitti said the conference synced broadcast and stadium cameras using a strobe system 85 minutes before kickoff specifically to guard against exactly this kind of dispute, and that the replay center's official clock — not the one displayed on NBC's feed — showed the second remaining, per Yahoo Sports.

Not everyone was convinced. NBC rules analyst Terry McAulay pushed back on the ruling during the broadcast itself.

"The ball isn't even close to touching a player when it goes to zero... The ball is clearly still in the air when the clock goes to zero on our screen," McAulay said.

Broncos left searching for answers

Western Michigan coach Lance Taylor struck a measured tone afterward despite the gut-punch finish, noting his defense had already stopped the first attempt and would have to do it again. "Because we defended it so well, I wasn't worried or concerned about our guys going out and defending it a second time," Taylor said, according to CNN. He added that multiple people on the field had told him the game was over before the review reversed course. Western Michigan's president has indicated the school intends to formally raise the sequence through MAC and Big Ten channels, though there is no indication the result is subject to being overturned after the fact.

For Whittingham, the longtime former Utah coach making his Michigan sideline debut, the chaos was a fitting welcome. "The refs went to replay, and they confirmed it and gave us one more opportunity," he said of the sequence, per Michigan's athletic department. Underwood finished directing the winning drive in a game that had been tight from the opening whistle against a Mid-American Conference foe picked to compete for its league title.

Michigan, ranked in the preseason top 20 and considered a playoff contender, escapes Week 1 at 1-0 despite offensive struggles that will draw scrutiny heading into a home date with Central Michigan. Western Michigan, meanwhile, is left to process a near-miracle that officiating math ultimately took away, with the clock controversy likely to fuel fresh debate over replay-center transparency across the sport.