On the next possession, Ibi Watson, who scored 24 points, hit a 3-pointer to give Dayton an 81-76 lead with 1:22 to play. After a basket by Davidson, Crutcher assisted Zimi Nwokeji on a wide-open layup.
Dayton’s Watson, Koby Brea and Mustapha Amzil sealed the victory by combining to make 6 of 8 free throws in the final 30 seconds.
Dayton shot a season-best 56.9 percent from the field (29 of 51) and made 11 of 25 3-pointers (44 percent) one game after making a season-worst 4 of 23 (17.4 percent) in the loss to Fordham. Dayton also made a season-best 20 of 24 free throws (83.3 percent).
Dayton led throughout the second half, stretching its lead to as many as eight points with 14 minutes to go. Both teams came out hot in the second half, combining for seven 3-pointers in the first four minutes.
Near the end of regulation, Watson gave Dayton a 70-67 lead on a short jump shot late in the shot clock with 30 seconds to play. Davidson’s Luka Brajkovic then scored on a wide-open dunk with 15 seconds remaining.
Davidson had to foul at that point and fouled Crutcher with 12.8 seconds left. He made both.
Dayton then chose not to foul and prevent Davidson from getting the chance to tie the game with a 3-pointer. Davidson star Kellan Grady took advantage and tied the game at 72-72 on a 3-pointer with 3.5 seconds left. Grady finished the game with 27 points on 11-of-18 shooting.
Watson missed a 3-pointer at the final buzzer as the game went to overtime.
In the first half, the Flyers trailed only once, 2-0. They took the lead on a 3-pointer by Watson on their first possession. They didn’t trail again in the half, taking a 32-31 halftime lead.
Foul trouble hurt Dayton in the half. Jordy Tshimanga had six points on 3-of-3 shooting and four rebounds but was limited to 10 minutes after picking up his second foul. Mustapha Amzil played only seven minutes after picking up two early fouls. Moulaye Sissoko picked up their playing time and committed four fouls in seven minutes.
Dayton made 4 of 10 3-pointers in the half after making 4 of 23 in its previous game against Fordham.
Davidson, which got 12 points from Kellan Grady in the half, kept it close by dominating the offensive boards. It had six to Dayton’s zero and scored five second-chance points.
NOTES: Junior guard Elijah Weaver made his first start in a Dayton uniform, replacing Brea, who started the last two games. Brea replaced Rodney Chatman, who will miss six to eight weeks after undergoing hand surgery Wednesday. Weaver scored 11 points on 4-of-5 shooting in 36 minutes.
• The game was played without fans because of the coronavirus pandemic. It was the second straight road game Dayton has played without fans in the stands.
• Dayton returns to action at 7 p.m. Wednesday against Duquesne (2-3, 1-2) at UD Arena. Dayton follows that with two games against George Washington, which paused basketball activities and cancelled its game Saturday at St. Bonaventure because of a positive COVID-19 test.
“No determination has been made on future games following tomorrow’s postponed contest,” George Washington announced.