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 |
|---|---|---|---|---|---|
| 13 | 1-0 | 2.45 | 14.2 | 20 | 1.23 |
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 12 | 0-0 | 2.92 | 12.1 | 13 | 1.54 |
2025 Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 0 | .000 | 0 | 0 | 0 | .000 |
MiLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 67 | 8-2 | 3.73 | 72.1 | 89 | 1.40 |
MLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 66 | 3-3 | 3.92 | 64.1 | 62 | 1.41 |
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 | 2.45 | 13 | 0 | 3 | 14.2 | 20 | 1.23 |
| 2026 MLB Stats | 0 | 0 | 2.92 | 12 | 0 | 0 | 12.1 | 13 | 1.54 |
| MiLB Career Stats | 8 | 2 | 3.73 | 67 | 0 | 12 | 72.1 | 89 | 1.40 |
| MLB Career Stats | 3 | 3 | 3.92 | 66 | 0 | 13 | 64.1 | 62 | 1.41 |
- Next COL Game: 6-02 @ LAA
Splits
| Duration | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Last 7 Games | 0 | 0 | 3.68 | 7 | 0 | 0 | 7.1 | 8 | 3 | 4 | 9 | 1.64 |
| Last 15 Games | 0 | 0 | 2.92 | 12 | 0 | 0 | 12.1 | 11 | 4 | 8 | 13 | 1.54 |
| Last 30 Games | - | - | --- | - | - | - | --- | - | - | - | - | --- |
| Last 3 Games | W | L | SV | IP | H | ER | BB | SO |
|---|---|---|---|---|---|---|---|---|
| 6/1 @ LAA | 0 | 0 | 0 | 1.1 | 1 | 0 | 0 | 1 |
| 5/29 vs SF | 0 | 0 | 0 | 1.2 | 1 | 0 | 0 | 2 |
| 5/24 @ AZ | 0 | 0 | 0 | 1.0 | 3 | 2 | 0 | 1 |
2026 :
RP
(12)
Latest Transactions
| Team | Date | Transaction |
|---|---|---|
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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 | Tennessee Volunteers activated RHP Seth Halvorsen. |
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February 3, 2023 | RHP Seth Halvorsen assigned to Tennessee Volunteers. |
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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
League Rankings
Triples
| 3B | ||
|---|---|---|
| 2026 | 1 | in NL |
| 2026 | 1 | in PCL |