- OSU Scholar-Athlete (2021)
- Started all 13 games he appeared in during 2022 as the Buckeye’s #1 or #2 weekend starter.
- Struck out 98 batters over 64.2 innings with a 5.71 ERA and a 5-5 record.
- Coupet opened the season with a gem, tossing six innings with no earned runs and 11 strikeouts. The Buckeyes won 15-4 and Coupet earned the victory.
- Struck out nine and allowed no earned runs through 5.1 innings while picking up the win against UNCW on March 18.
- In his most dominant performance of 2022 on April 1 against Nebraska, Coupet struck out 14 Cornhusker batters in just seven innings while allowing only one earned run.
- Earned the win in the 25-9 victory at Northwestern on May 7, striking out nine across five innings of two-hit baseball.
- In the 11-0 win over Penn State on May 14, Coupet struck out seven in six innings and earned the victory.
- Coupet picked up his fifth win of 2022 in the season finale on May 20 against USC Upstate, striking out seven across 5.1 innings.
- Appeared in 9 games and made 1 start in his freshman season
- Recorded 1 save in 17.1 innings of work, finishing the year with a 3.63 ERA and an 0-3 record
- Recorded the save in his first ever appearance as a Buckeye, allowing 1 earned run and striking out 4 across 3 innings of work in the 12-6 win over Illinois in the second game of their March 6 doubleheader
- Pitched consecutive scoreless outings in wins against Iowa on March 26 and Indiana on April 4
- Struck out 5 of the 6 batters he faced in 2 perfect innings at Maryland on April 18
- Gave up only 1 hit and struck out 4 batters across 2 innings in the 11-3 win over Purdue on April 30
- In his sole start of the season on May 24 at Indiana, Coupet struck out 7 Hoosiers in 3.1 innings of work, giving up only 1 earned run in the 2-0 loss.
Prior to Ohio State
- Isaiah is the son of Ernst and Carol Coupet
- Played for John McCarthy at Homewood-Flossmoor High School
- Played summer ball for Lou Collier A’s
- All-SWSC selection
- Posted a 2.05 ERA with 58 strikeouts in 44.1 innings pitched as a junior