ST. BONAVENTURE, N.Y. — In all the ugliness of the St. Bonaventure men’s basketball team’s 21st win of the season — the 2-for-12 effort from 3-point range, the fouls, the turnovers — there was unlikely bright spot with 13:15 remaining.

That’s when the Bonnies reached the bonus.

On a night when one star was shut down and another was held in check, one of the best free throw shooting teams in the country was able to use one of its best attributes to keep enough separation in a 73-67 triumph.

Bona started 20-for-20 and finished an impressive 29-of-33, accumulating 40 percent of its points at the stripe. In the second half, more than half of its points (21 of 41) came at the line as Bona was equal parts deterred and helped by the officials’ quick whistle.

The Bonnies entered Wednesday ranked No. 35 nationally (and No. 3 in the Atlantic 10) in free throw percentage (76.0 percent). It’ll likely rank higher after connecting on 88 percent against Duquesne.

“That’s huge,” coach Mark Schmidt said. “Other than defense (Bona held the Dukes to 35 percent from the field after they 56 percent in the first game), that’s why we won.”

Jaylen Adams went 9-for-9 from the line to still reach 24 points on what might be considered an off night. But it was the Bonnies’ role players that allowed them to reach that figure and put Duquesne away for good.

Amadi Ikpeze recorded his first career double-double and went 7-for-7 at the stripe. Courtney Stockard hit double figures for the sixth-consecutive game and finished 4-for-5.

“Courtney and Amadi have done a tremendous job,” Schmidt said. “I think both of them are over 80 percent now in the Atlantic 10, and that’s important, especially for a big guy who’s going to get fouled inside. You can’t go 0-for-2, and Amadi did a tremendous job tonight.”

Ikpeze, who made his second-straight start Wednesday (with usual 5-man LaDarien Griffin coming off the bench) tied a career-high with 13 points and set a new best with 10 rebounds.

“Amadi’s really improved,” Schmidt said. “He’s able to get some baskets inside and defend a bigger guy. He’s coming along and hopefully he can continue to improve. But making foul shots …  we don’t win without those.”

Bona pushed its winning streak to nine-straight, the program’s longest since winning 13 in a row in the 1969-70 Final Four season. With at least four games remaining, it’ll have a chance to tie or surpass the school record for victories in a season (25), also set in 1969-70.

With a pair of free throws with 16.9 seconds remaining, Adams surpassed Essie Hollis for sixth place on the Bonnies’ all-time scoring list. The 6-foot-2 guard, who now has 1,801 career points, will likely finish at No. 6, as he’s 251 points behind Tom Stith for fifth place.

Duquesne did a better job on Adams, never allowing him to get going the way he did when he scored 40 in Pittsburgh, but Dukes coach Keith Dambrot still sang his praises afterward, calling him a “pro.”

“I think he’s going to be on somebody’s (NBA) roster before it’s over,” he said. “He’s a team-oriented guy, he can play at both ends, he can pass the ball. He has a good understanding of the game, he’s got a great temperament. To me, he’s going to end up on somebody’s roster.”

With Wednesday’s win, Bona swept the Dukes for a second straight year and the third time in the last four seasons. Schmidt’s team has won eight of the last nine and 11 of 13 against Duquesne, and has won 10-straight at home over perhaps its biggest A-10 rival, with the last home loss coming in 2009.

After missing eight shots from in close against Rhode Island, Idris Taqqee missed another two layups against the Dukes, but after his second miss late in the first half, he was another role player that came up big for the Bonnies.

The senior guard tied his season conference high with 11 points and added eight rebounds, adding a big dunk with 25.6 seconds left to seal it.

“Amadi, that’s the best game he’s played in his career,” Schmidt said. “I thought Idris was another guy that was an unsung hero. I thought our role guys really did a good job of stepping up and being productive for us.”

On the senior backcourt’s final game in front of the students, who start spring break on Friday, and following Friday’s huge win over URI, there was a quality crowd of 5,089 on Wednesday. That might be a weeknight record in the Schmidt era.

Traditional Senior Night festivities will take place Tuesday in a 9 p.m. start against Davidson.