Seth Halvorsen #54
Colorado Rockies
- P
- B/T: R/R
- 6' 2"/243
- Age: 26
- Seth Michael Halvorsen
- Status: Active
- Born: 2/18/2000 in Chicago, IL
- Draft: 2023, Colorado Rockies, Round: 7, Overall Pick: 202
- College: Tennessee
- MLB Debut: 8/30/2024
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 15 | 1-0 | 2.16 | 16.2 | 24 | 1.20 |
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 20 | 0-1 | 3.50 | 18.0 | 17 | 1.78 |
2025 Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 0 | .000 | 0 | 0 | 0 | .000 |
MiLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 69 | 8-2 | 3.63 | 74.1 | 93 | 1.39 |
MLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 74 | 3-4 | 3.99 | 70.0 | 66 | 1.49 |
MLB Career Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 0 | .000 | 0 | 0 | 0 | .000 |
| Year | AB | R | H | HR | RBI | SB | AVG | OBP | OPS |
|---|---|---|---|---|---|---|---|---|---|
| 2025 MLB Stats | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 |
| MLB Career Stats | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 |
| Year | W | L | ERA | G | GS | SV | IP | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2026 MiLB Stats | 1 | 0 | 2.16 | 15 | 0 | 3 | 16.2 | 24 | 1.20 |
| 2026 MLB Stats | 0 | 1 | 3.50 | 20 | 0 | 0 | 18.0 | 17 | 1.78 |
| MiLB Career Stats | 8 | 2 | 3.63 | 69 | 0 | 12 | 74.1 | 93 | 1.39 |
| MLB Career Stats | 3 | 4 | 3.99 | 74 | 0 | 13 | 70.0 | 66 | 1.49 |
- 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 | 1 | 5.79 | 7 | 0 | 0 | 4.2 | 6 | 3 | 5 | 4 | 2.36 |
| Last 15 Games | 0 | 1 | 4.15 | 15 | 0 | 0 | 13.0 | 15 | 6 | 10 | 13 | 1.92 |
| Last 30 Games | 0 | 1 | 3.50 | 20 | 0 | 0 | 18.0 | 18 | 7 | 14 | 17 | 1.78 |
| Last 3 Games | W | L | SV | IP | H | ER | BB | SO |
|---|---|---|---|---|---|---|---|---|
| 6/28 @ MIN | 0 | 1 | 0 | 0.2 | 3 | 1 | 0 | 0 |
| 6/26 @ MIN | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 1 |
| 6/15 @ CHC | 0 | 0 | 0 | 0.0 | 1 | 0 | 1 | 0 |
2026 :
RP
(20)
Latest Transactions
| Team | Date | Transaction |
|---|---|---|
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June 24, 2026 | Colorado Rockies recalled RHP Seth Halvorsen from Albuquerque Isotopes. |
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June 17, 2026 | Colorado Rockies optioned RHP Seth Halvorsen to Albuquerque Isotopes. |
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May 9, 2026 | Colorado Rockies recalled RHP Seth Halvorsen from Albuquerque Isotopes. |
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April 27, 2026 | Colorado Rockies optioned RHP Seth Halvorsen to Albuquerque Isotopes. |
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April 23, 2026 | Colorado Rockies recalled RHP Seth Halvorsen from Albuquerque Isotopes. |
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March 25, 2026 | Colorado Rockies optioned RHP Seth Halvorsen to Albuquerque Isotopes. |
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September 29, 2025 | Colorado Rockies activated RHP Seth Halvorsen from the 15-day injured list. |
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August 3, 2025 | Colorado Rockies placed RHP Seth Halvorsen on the 15-day injured list. Right elbow strain. |
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April 16, 2025 | RHP Seth Halvorsen changed number to 54. |
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April 15, 2025 | RHP Seth Halvorsen changed number to 42. |
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August 30, 2024 | Colorado Rockies selected the contract of RHP Seth Halvorsen from Albuquerque Isotopes. |
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August 2, 2024 | RHP Seth Halvorsen assigned to Albuquerque Isotopes from Hartford Yard Goats. |
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April 1, 2024 | Hartford Yard Goats activated RHP Seth Halvorsen. |
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April 1, 2024 | RHP Seth Halvorsen assigned to Hartford Yard Goats from ACL Rockies. |
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March 11, 2024 | RHP Seth Halvorsen assigned to Colorado Rockies. |
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March 7, 2024 | Colorado Rockies Prospects activated RHP Seth Halvorsen. |
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September 13, 2023 | RHP Seth Halvorsen assigned to ACL Rockies from Hartford Yard Goats. |
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August 22, 2023 | RHP Seth Halvorsen assigned to Hartford Yard Goats from Spokane Indians. |
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August 3, 2023 | Spokane Indians activated RHP Seth Halvorsen. |
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August 3, 2023 | RHP Seth Halvorsen assigned to Spokane Indians from ACL Rockies. |
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July 27, 2023 | RHP Seth Halvorsen assigned to ACL Rockies. |
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July 18, 2023 | Colorado Rockies signed RHP Seth Halvorsen. |
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February 3, 2023 | RHP Seth Halvorsen assigned to Tennessee Volunteers. |
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February 3, 2023 | Tennessee Volunteers activated RHP Seth Halvorsen. |
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March 1, 2022 | RHP Seth Halvorsen and assigned to Tennessee Volunteers. |
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February 22, 2020 | RF Seth Halvorsen assigned to Missouri Tigers. |
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August 8, 2017 | SS Seth Halvorsen assigned to PG West. |
+ Show More Transactions