Upcoming Event: Baseball versus Notre Dame on February 13, 2026 at 6:30 p.m.
6:30 p.m.
Baseball
vs. Notre Dame
Florida Atlantic University Athletics
2020 Baseball Roster
Roster
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Jersey Number 21
Jon Jon Kostantis
- Position:
- Pitcher
- Bats/Throws:
- R/R
- Height:
- 6-0
- Weight:
- 175
- Class:
- Sophomore
- Hometown:
- East Lake, Fla.
- High School:
- East Lake
- Birthday:
- 7/28/99
- Major:
- Communication Studies
2020Â (Sophomore)
- Pitched in four games out of the bullpen
- Picked up the win in his first appearance, going 3 1/3 innings against Delaware (Feb. 15)
- Capped the year with a two-inning scoreless outing against Northeastern
2019 (Freshman)
- Went 3-0 in his first year with the squad, spanning 17 appearances with four starts
- Was third on the team as he limited opposing batters to a .258 average
- Out of the bullpen, pitched to a 3.68 ERA, striking out 20 hitters in 22 innings
- Picked up his first two victories in back-to-back outings, in relief against Monmouth (2 1/3 scoreless innings) and in his first collegiate start, vs. Quinnipiac (three scoreless innings)
- After the latter, had lowered his season ERAÂ to 0.84
- His third win was his longest outing of the year, a conference victory over Louisiana Tech (four innings, three hits, two runs)
High School
- Finished his senior year at East Lake for coach Zach Roper as an All-Star, with seven wins, a 2.02 ERA, and 71 strikeouts in just 55 innings
- Was named 2018 Rawlings-Perfect Game Honorable Mention All-American
Personal
- Son of Karen and Geo Kostantis
- Born in Munster, Indiana
- Is a communications major
- Favorite pro team is the Pittsburgh Steelers, and movie is Hot Rod
- Likes to listen to reggae
- Favorite food is sandwiches
- Enjoys playing golf
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