Athletics1 game
0-1his teams
His line: 3.0 IP, 2 K, 0.00 ERA
Last met Jun 12, 2026
BaseballMLBColorado RockiesStarting pitcher
Sean Sullivan
Stats and careerSean Sullivan is a starting pitcher for the Colorado Rockies who made his MLB debut on Jun 12, 2026.
5 MLB games16 strikeouts
Updated
About Sean Sullivan
Sean Sullivan is a starting pitcher for the Colorado Rockies and wears number 45. Born on July 22, 2002, in Boston, Massachusetts, United States, he bats right-handed and throws left-handed. Sullivan made his MLB debut on Jun 12, 2026, with the Colorado Rockies.
Agatha Research DeskUpdated Oct 5, 2026Season by season5
Every season, every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | COL | 5 | 5 | 22.1 | 16 | 11 | 8.87 | 2.01 |
| Career | 5 | 5 | 22.1 | 16 | 11 | 8.87 | 2.01 |
How he is doing now
2026 pitching8.87 ERA22.1 innings, 16 strikeouts, 2.01 WHIP
Rockies58-1042026 regular season
Last game5.2 IP, 4 K, 6 ERJul 4 vs Giants
Injury status
No active flag. Latest report 15-Day-IL (61d ago), no longer on the injury report.
Career
- 2026MLB debut6-4 loss vs Athletics
- 2026Best start4.2 IP, 5 K, 5 ER, vs Marlins
- Jul 4, 2026Latest game5.2 IP, 4 K, 6 ER vs Giants
Regular season
5 games
22.1 IP, 16 K, 8.87 ERA
First MLB game
Jun 12, 2026: 3.0 IP, 2 K, 0 ERAthletics 6, Rockies 4
Latest game
Jul 4, 2026: 5.2 IP, 4 K, 6 ERGiants 6, Rockies 4
Most often against
The teams he has faced most, with his teams' record and his line against each.
Boston Red Sox1 game
0-1his teams
His line: 5.0 IP, 3 K, 5.40 ERA
Last met Jun 23, 2026
Chicago Cubs1 game
0-1his teams
His line: 4.0 IP, 2 K, 18.00 ERA
Last met Jun 17, 2026
Miami Marlins1 game
0-1his teams
His line: 4.2 IP, 5 K, 9.64 ERA
Last met Jun 29, 2026
San Francisco Giants1 game
0-1his teams
His line: 5.2 IP, 4 K, 9.53 ERA
Last met Jul 4, 2026
Injury history
ESPN's injury reports, newest first.
- Sep 11, 202615-Day-IL Shoulder
Sullivan (shoulder) began a rehab assignment with Triple-A Albuquerque on Thursday, striking out four while yielding one run in 1.2 innings.
ESPN / COL
Sources and updates
Stats, scores and injury reports come from Agatha's own records: MLB's own box scores, its transactions and ESPN's injury reports.
Updated Nov 9, 2026, 7:18 AM ET. Results and form refresh after every game; biography facts are checked weekly.