Sean Sullivan #45
Colorado Rockies
- P
- B/T: R/L
- 6' 4"/200
- Age: 23
- Sean Joseph Sullivan
- Status: Active
- Born: 7/22/2002 in Boston, MA
- Draft: 2023, Colorado Rockies, Round: 2, Overall Pick: 46
- College: Wake Forest
- MLB Debut: 6/12/2026
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 11 | 5-3 | 5.60 | 54.2 | 50 | 1.55 |
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 4 | 0-2 | 8.64 | 16.2 | 12 | 1.86 |
MiLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 55 | 24-11 | 3.08 | 278.0 | 289 | 1.08 |
MLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 4 | 0-2 | 8.64 | 16.2 | 12 | 1.86 |
| Year | W | L | ERA | G | GS | SV | IP | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2026 MiLB Stats | 5 | 3 | 5.60 | 11 | 11 | 0 | 54.2 | 50 | 1.55 |
| 2026 MLB Stats | 0 | 2 | 8.64 | 4 | 4 | 0 | 16.2 | 12 | 1.86 |
| MiLB Career Stats | 24 | 11 | 3.08 | 55 | 52 | 0 | 278.0 | 289 | 1.08 |
| MLB Career Stats | 0 | 2 | 8.64 | 4 | 4 | 0 | 16.2 | 12 | 1.86 |
- Next COL Game: 6-30 vs MIA
Splits
| Duration | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Last 7 Games | 0 | 2 | 8.64 | 4 | 4 | 0 | 16.2 | 22 | 16 | 9 | 12 | 1.86 |
| Last 15 Games | - | - | --- | - | - | - | --- | - | - | - | - | --- |
| Last 30 Games | - | - | --- | - | - | - | --- | - | - | - | - | --- |
| Last 3 Games | W | L | SV | IP | H | ER | BB | SO |
|---|---|---|---|---|---|---|---|---|
| 6/29 vs MIA | 0 | 0 | 0 | 4.2 | 6 | 5 | 2 | 5 |
| 6/23 vs BOS | 0 | 1 | 0 | 5.0 | 5 | 3 | 5 | 3 |
| 6/17 @ CHC | 0 | 1 | 0 | 4.0 | 9 | 8 | 2 | 2 |
2026 :
SP
(4)
More Sean Sullivan
Sean Sullivan In play, out(s) to Nick Solak
Sean Sullivan notches eight strikeouts
Sean Sullivan's six strikeouts in scoreless outing
Sean Sullivan strikes out six
Sean Sullivan's nine-strikeout start
Sean Sullivan racks up seven punchouts over seven
Rockies No. 8 prospect Sean Sullivan's 10 K's
Sean Sullivan's eighth strikeout
Sean Sullivan strikes out Thayron Liranzo
Latest Transactions
| Team | Date | Transaction |
|---|---|---|
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June 12, 2026 | Colorado Rockies selected the contract of LHP Sean Sullivan from Albuquerque Isotopes. |
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March 27, 2026 | LHP Sean Sullivan assigned to Albuquerque Isotopes from Hartford Yard Goats. |
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March 5, 2026 | LHP Sean Sullivan assigned to Colorado Rockies Prospects. |
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February 5, 2026 | Colorado Rockies invited non-roster LHP Sean Sullivan to spring training. |
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August 21, 2025 | Hartford Yard Goats activated LHP Sean Sullivan from the 7-day injured list. |
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August 12, 2025 | Hartford Yard Goats placed LHP Sean Sullivan on the 7-day injured list. |
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May 13, 2025 | LHP Sean Sullivan assigned to Hartford Yard Goats from Fresno Grizzlies. |
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May 8, 2025 | LHP Sean Sullivan assigned to Fresno Grizzlies from ACL Rockies. |
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May 2, 2025 | LHP Sean Sullivan assigned to ACL Rockies. |
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January 24, 2025 | Colorado Rockies invited non-roster LHP Sean Sullivan to spring training. |
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August 3, 2024 | LHP Sean Sullivan assigned to Hartford Yard Goats from Spokane Indians. |
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July 9, 2024 | LHP Sean Sullivan assigned to Spokane Indians from ACL Rockies. |
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June 24, 2024 | LHP Sean Sullivan assigned to ACL Rockies from Spokane Indians. |
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April 1, 2024 | LHP Sean Sullivan assigned to Spokane Indians from Fresno Grizzlies. |
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March 7, 2024 | Colorado Rockies Prospects activated LHP Sean Sullivan. |
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September 26, 2023 | Fresno Grizzlies activated LHP Sean Sullivan from the 7-day injured list. |
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September 5, 2023 | Fresno Grizzlies placed LHP Sean Sullivan on the 7-day injured list retroactive to September 2, 2023. |
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August 29, 2023 | LHP Sean Sullivan assigned to Fresno Grizzlies from ACL Rockies. |
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August 1, 2023 | LHP Sean Sullivan assigned to ACL Rockies. |
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July 16, 2023 | Colorado Rockies signed LHP Sean Sullivan. |
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May 26, 2023 | College Workout activated LHP Sean Sullivan. |
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May 24, 2023 | College Workout activated LHP Sean Sullivan. |
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May 20, 2023 | LHP Sean Sullivan assigned to Wake Forest Demon Deacons. |
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May 20, 2023 | Wake Forest Demon Deacons activated LHP Sean Sullivan. |
+ Show More Transactions
Awards
NWL Pitcher of the Week
| Week | ||
|---|---|---|
| 07/28/2024 | Spokane Indians | NWL |
NWL Pitcher of the Year
| Year | ||
|---|---|---|
| 2024 | Spokane Indians | NWL |
NWL Post-Season All-Star
| Year | ||
|---|---|---|
| 2024 | Spokane Indians | NWL |
Baseball America High Class A All-Star
| Year | ||
|---|---|---|
| 2024 | Spokane Indians | NWL |
EAS Pitcher of the Week
| Week | ||
|---|---|---|
| 08/10/2025 | Hartford Yard Goats | EAS |
League Rankings
Triples
| 3B | ||
|---|---|---|
| 2026 | 2 | in NL |
| 2026 | 2 | in PCL |