Cooper Hjerpe
St. Louis CardinalsP
Age: 25
Bats/Throws: L/L
6'3" / 200
DOB: 3/16/2001
(25 years, 7 months, 11 days)
P
| Season | 2026 | Total |
| Team | STL | - - - |
| Level | MLB | MLB |
| G | 4 | 4 |
| GS | 0 | 0 |
| IP | 12.1 | 12.1 |
| K% | 27.3% | 27.3% |
| BB% | 16.4% | 16.4% |
| GB% | 44.4% | 44.4% |
| ERA | 4.38 | 4.38 |
| FIP | 3.34 | 3.34 |
| WAR | 0.1 | 0.1 |
2026 Pitch
Selection
Selection
FA:52%
SL:23%
CH:16%
FC:9%
RosterResource
| How Acquired: | Draft |
| Draft: | 2022, Rd: 1, Pick: 22, Ovr: 22 |
| Draft Team: | St. Louis Cardinals |
| Signing Bonus: | $3,182,200 |
| College: | Oregon State |
Service Time
0.000MiLB Options
2
News
Rotowire: The Cardinals optioned Hjerpe to Triple-A Memphis on Thursday, Derrick Goold of the St. Louis Post-Dispatch reports. (9/24/2026)
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| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 5.2 | - - - | 28 | 3 | 1 | 0 | 5 | 5 | 0 | 6 | 0 | 2 | 7 | .158 | .393 | .211 | .310 |
| 2026 | vs R | 6.2 | - - - | 27 | 4 | 1 | 0 | 1 | 1 | 0 | 3 | 0 | 0 | 8 | .167 | .259 | .208 | .223 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 5.0 | 10.80 | 27 | 4 | 2 | 0 | 6 | 6 | 0 | 6 | 0 | 2 | 6 | .222 | .444 | .333 | .369 |
| 2026 | Away | 7.1 | 0.00 | 28 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 9 | .120 | .214 | .120 | .170 |
| 2026 | Home vs L | 2.0 | - - - | 14 | 2 | 1 | 0 | 5 | 5 | 0 | 4 | 0 | 2 | 1 | .286 | .571 | .429 | .457 |
| 2026 | Home vs R | 3.0 | - - - | 13 | 2 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 5 | .182 | .308 | .273 | .273 |
| 2026 | Away vs L | 3.2 | - - - | 14 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 6 | .083 | .214 | .083 | .163 |
| 2026 | Away vs R | 3.2 | - - - | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | .154 | .214 | .154 | .177 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Sept/Oct | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| 2026 | 2nd Half | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 6.1 | - - - | 26 | 3 | 2 | 0 | 2 | 2 | 0 | 3 | 0 | 1 | 5 | .143 | .269 | .238 | .240 |
| 2026 | Medium Leverage | 4.2 | - - - | 21 | 3 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | 1 | 8 | .176 | .333 | .176 | .262 |
| 2026 | High Leverage | 1.1 | - - - | 8 | 1 | 0 | 0 | 3 | 3 | 0 | 3 | 0 | 0 | 2 | .200 | .500 | .200 | .373 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 8.0 | - - - | 33 | 4 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 11 | .143 | .273 | .179 | .226 |
| 2026 | Men on Base | 4.1 | - - - | 22 | 3 | 1 | 0 | 6 | 6 | 0 | 5 | 0 | 1 | 4 | .200 | .409 | .267 | .330 |
| 2026 | Men In Scoring | 2.0 | - - - | 11 | 1 | 0 | 0 | 5 | 5 | 0 | 4 | 0 | 0 | 2 | .167 | .455 | .167 | .335 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 0 | 0.1 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 3 - 1 | 0.2 | - - - | 7 | 2 | 1 | 0 | 2 | 2 | 0 | 3 | 0 | 0 | 1 | .500 | .714 | .750 | .607 |
| 2026 | Through 3 - 2 | 1.0 | - - - | 11 | 2 | 1 | 0 | 2 | 2 | 0 | 6 | 0 | 0 | 2 | .400 | .727 | .600 | .576 |
| 2026 | Through 2 - 0 | 1.0 | - - - | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | .250 | .500 | .250 | .386 |
| 2026 | Through 1 - 0 | 5.0 | - - - | 25 | 2 | 0 | 0 | 4 | 4 | 0 | 7 | 0 | 1 | 4 | .125 | .400 | .125 | .296 |
| 2026 | Through 2 - 1 | 2.2 | - - - | 13 | 1 | 1 | 0 | 4 | 4 | 0 | 4 | 0 | 0 | 3 | .111 | .385 | .222 | .312 |
| 2026 | Through 1 - 1 | 5.2 | - - - | 27 | 3 | 2 | 0 | 5 | 5 | 0 | 7 | 0 | 0 | 5 | .158 | .370 | .263 | .307 |
| 2026 | Through 0 - 1 | 6.1 | - - - | 26 | 4 | 2 | 0 | 2 | 2 | 0 | 2 | 0 | 1 | 11 | .174 | .269 | .261 | .247 |
| 2026 | Through 2 - 2 | 3.0 | - - - | 18 | 3 | 1 | 0 | 3 | 3 | 0 | 6 | 0 | 0 | 4 | .273 | .500 | .364 | .402 |
| 2026 | Through 1 - 2 | 3.1 | - - - | 20 | 4 | 1 | 0 | 2 | 2 | 0 | 5 | 0 | 1 | 6 | .308 | .500 | .385 | .408 |
| 2026 | Through 0 - 2 | 4.0 | - - - | 16 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 9 | .143 | .250 | .143 | .200 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Reliever | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | No Shift | 1.1 | - - - | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .286 | .286 | .286 | .254 |
| 2026 | Shift - All | 5.0 | - - - | 22 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .238 | .227 | .333 | .236 |
| 2026 | Shift - Traditional | 4.0 | - - - | 18 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .278 | .278 | .389 | .289 |
| 2026 | Shift - Non Traditional | 1.0 | - - - | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as RP | 8.2 | 2.08 | 36 | 2 | 1 | 0 | 2 | 2 | 0 | 6 | 0 | 2 | 10 | .074 | .278 | .111 | .217 |
| 2026 | 2nd Through Order as RP | 3.2 | 9.82 | 19 | 5 | 1 | 0 | 4 | 4 | 0 | 3 | 0 | 0 | 5 | .313 | .421 | .375 | .364 |
| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 5.2 | - - - | 28 | 3 | 1 | 0 | 5 | 5 | 0 | 6 | 0 | 2 | 7 | .158 | .393 | .211 | .310 |
| 2026 | vs R | 6.2 | - - - | 27 | 4 | 1 | 0 | 1 | 1 | 0 | 3 | 0 | 0 | 8 | .167 | .259 | .208 | .223 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 5.0 | 10.80 | 27 | 4 | 2 | 0 | 6 | 6 | 0 | 6 | 0 | 2 | 6 | .222 | .444 | .333 | .369 |
| 2026 | Away | 7.1 | 0.00 | 28 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 9 | .120 | .214 | .120 | .170 |
| 2026 | Home vs L | 2.0 | - - - | 14 | 2 | 1 | 0 | 5 | 5 | 0 | 4 | 0 | 2 | 1 | .286 | .571 | .429 | .457 |
| 2026 | Home vs R | 3.0 | - - - | 13 | 2 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 5 | .182 | .308 | .273 | .273 |
| 2026 | Away vs L | 3.2 | - - - | 14 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 6 | .083 | .214 | .083 | .163 |
| 2026 | Away vs R | 3.2 | - - - | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | .154 | .214 | .154 | .177 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Sept/Oct | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| 2026 | 2nd Half | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 6.1 | - - - | 26 | 3 | 2 | 0 | 2 | 2 | 0 | 3 | 0 | 1 | 5 | .143 | .269 | .238 | .240 |
| 2026 | Medium Leverage | 4.2 | - - - | 21 | 3 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | 1 | 8 | .176 | .333 | .176 | .262 |
| 2026 | High Leverage | 1.1 | - - - | 8 | 1 | 0 | 0 | 3 | 3 | 0 | 3 | 0 | 0 | 2 | .200 | .500 | .200 | .373 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 8.0 | - - - | 33 | 4 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 11 | .143 | .273 | .179 | .226 |
| 2026 | Men on Base | 4.1 | - - - | 22 | 3 | 1 | 0 | 6 | 6 | 0 | 5 | 0 | 1 | 4 | .200 | .409 | .267 | .330 |
| 2026 | Men In Scoring | 2.0 | - - - | 11 | 1 | 0 | 0 | 5 | 5 | 0 | 4 | 0 | 0 | 2 | .167 | .455 | .167 | .335 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 0 | 0.1 | - - - | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .445 |
| 2026 | Through 3 - 1 | 0.2 | - - - | 7 | 2 | 1 | 0 | 2 | 2 | 0 | 3 | 0 | 0 | 1 | .500 | .714 | .750 | .607 |
| 2026 | Through 3 - 2 | 1.0 | - - - | 11 | 2 | 1 | 0 | 2 | 2 | 0 | 6 | 0 | 0 | 2 | .400 | .727 | .600 | .576 |
| 2026 | Through 2 - 0 | 1.0 | - - - | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | .250 | .500 | .250 | .386 |
| 2026 | Through 1 - 0 | 5.0 | - - - | 25 | 2 | 0 | 0 | 4 | 4 | 0 | 7 | 0 | 1 | 4 | .125 | .400 | .125 | .296 |
| 2026 | Through 2 - 1 | 2.2 | - - - | 13 | 1 | 1 | 0 | 4 | 4 | 0 | 4 | 0 | 0 | 3 | .111 | .385 | .222 | .312 |
| 2026 | Through 1 - 1 | 5.2 | - - - | 27 | 3 | 2 | 0 | 5 | 5 | 0 | 7 | 0 | 0 | 5 | .158 | .370 | .263 | .307 |
| 2026 | Through 0 - 1 | 6.1 | - - - | 26 | 4 | 2 | 0 | 2 | 2 | 0 | 2 | 0 | 1 | 11 | .174 | .269 | .261 | .247 |
| 2026 | Through 2 - 2 | 3.0 | - - - | 18 | 3 | 1 | 0 | 3 | 3 | 0 | 6 | 0 | 0 | 4 | .273 | .500 | .364 | .402 |
| 2026 | Through 1 - 2 | 3.1 | - - - | 20 | 4 | 1 | 0 | 2 | 2 | 0 | 5 | 0 | 1 | 6 | .308 | .500 | .385 | .408 |
| 2026 | Through 0 - 2 | 4.0 | - - - | 16 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 9 | .143 | .250 | .143 | .200 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Reliever | 12.1 | 4.38 | 55 | 7 | 2 | 0 | 6 | 6 | 0 | 9 | 0 | 2 | 15 | .163 | .327 | .209 | .268 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | No Shift | 1.1 | - - - | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .286 | .286 | .286 | .254 |
| 2026 | Shift - All | 5.0 | - - - | 22 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .238 | .227 | .333 | .236 |
| 2026 | Shift - Traditional | 4.0 | - - - | 18 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .278 | .278 | .389 | .289 |
| 2026 | Shift - Non Traditional | 1.0 | - - - | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as RP | 8.2 | 2.08 | 36 | 2 | 1 | 0 | 2 | 2 | 0 | 6 | 0 | 2 | 10 | .074 | .278 | .111 | .217 |
| 2026 | 2nd Through Order as RP | 3.2 | 9.82 | 19 | 5 | 1 | 0 | 4 | 4 | 0 | 3 | 0 | 0 | 5 | .313 | .421 | .375 | .364 |
