Cooper Hjerpe
St. Louis Cardinals (ST)P
Age: 25
Bats/Throws: L/L
6'3" / 200
DOB: 3/16/2001
(25 years, 17 days)
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 20 | 3 | 6 | 0 | 17 | 16 | 77.0 | 11.45 | 3.16 | 0.70 | .308 | 57.4% | 4.21 | 3.07 | |||||||||
| 2022 | ORST | NCAA | 21 | 11 | 2 | 1 | 18 | 17 | 103.1 | 14.02 | 2.00 | 0.26 | .305 | 72.0% | 2.53 | 1.42 | |||||||||
| 2023 | STL | A+ | 22 | 2 | 3 | 0 | 10 | 8 | 41.0 | 11.20 | 5.49 | 1.76 | .217 | 86.8% | 43.2% | 21.1% | 3.51 | 5.67 | 4.15 | ||||||
| 2024 | STL | A+ | 23 | 0 | 3 | 0 | 11 | 11 | 37.2 | 13.38 | 4.78 | 0.72 | .297 | 79.1% | 50.6% | 10.3% | 3.35 | 3.57 | 3.38 | ||||||
| 2024 | STL | AA | 23 | 2 | 1 | 0 | 4 | 4 | 14.2 | 12.27 | 4.91 | 0.00 | .207 | 64.3% | 24.1% | 0.0% | 3.07 | 2.32 | 3.63 | ||||||
| 2024 | STL | MiLB | 23 | 2 | 4 | 0 | 15 | 15 | 52.1 | 13.07 | 4.82 | 0.52 | .272 | 75.7% | 43.4% | 6.8% | 3.27 | 3.22 | 3.45 | ||||||
| 2024 | STL | ST | 23 | 0 | 0 | 0 | 1 | 0 | 2.0 | 18.00 | 9.00 | 0.00 | .000 | 100.0% | 0.0% | 0.0% | 0.00 | 2.74 | 4.45 | ||||||
| 2025 | STL | ST | 24 | 0 | 0 | 0 | 2 | 0 | 3.0 | 12.00 | 9.00 | 0.00 | .444 | 71.4% | 33.3% | 0.0% | 6.00 | 4.07 | 6.43 | ||||||
| 2026 | Steamer | PROJ | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.64 | 4.26 | 1.21 | .290 | 72.3% | 40.3% | 4.51 | 4.76 | 4.85 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 1 | 3.6 | 8.46 | 4.42 | 1.11 | .290 | 69.3% | 4.44 | 4.49 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.83 | 4.37 | 1.21 | .290 | 72.5% | 4.48 | 4.74 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 1 | 3.6 | 8.46 | 4.42 | 1.11 | .290 | 69.3% | 4.44 | 4.49 | 0.0 |
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 20 | 3 | 6 | 0 | 17 | 16 | 77.0 | 11.45 | 3.16 | 0.70 | .308 | 57.4% | 4.21 | 3.07 | |||||||||
| 2022 | ORST | NCAA | 21 | 11 | 2 | 1 | 18 | 17 | 103.1 | 14.02 | 2.00 | 0.26 | .305 | 72.0% | 2.53 | 1.42 | |||||||||
| 2023 | STL | A+ | 22 | 2 | 3 | 0 | 10 | 8 | 41.0 | 11.20 | 5.49 | 1.76 | .217 | 86.8% | 43.2% | 21.1% | 3.51 | 5.67 | 4.15 | ||||||
| 2024 | STL | A+ | 23 | 0 | 3 | 0 | 11 | 11 | 37.2 | 13.38 | 4.78 | 0.72 | .297 | 79.1% | 50.6% | 10.3% | 3.35 | 3.57 | 3.38 | ||||||
| 2024 | STL | AA | 23 | 2 | 1 | 0 | 4 | 4 | 14.2 | 12.27 | 4.91 | 0.00 | .207 | 64.3% | 24.1% | 0.0% | 3.07 | 2.32 | 3.63 | ||||||
| 2024 | STL | MiLB | 23 | 2 | 4 | 0 | 15 | 15 | 52.1 | 13.07 | 4.82 | 0.52 | .272 | 75.7% | 43.4% | 6.8% | 3.27 | 3.22 | 3.45 | ||||||
| 2024 | STL | ST | 23 | 0 | 0 | 0 | 1 | 0 | 2.0 | 18.00 | 9.00 | 0.00 | .000 | 100.0% | 0.0% | 0.0% | 0.00 | 2.74 | 4.45 | ||||||
| 2025 | STL | ST | 24 | 0 | 0 | 0 | 2 | 0 | 3.0 | 12.00 | 9.00 | 0.00 | .444 | 71.4% | 33.3% | 0.0% | 6.00 | 4.07 | 6.43 | ||||||
| 2026 | Steamer | PROJ | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.64 | 4.26 | 1.21 | .290 | 72.3% | 40.3% | 4.51 | 4.76 | 4.85 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 1 | 3.6 | 8.46 | 4.42 | 1.11 | .290 | 69.3% | 4.44 | 4.49 | 0.0 | ||||||||
| 2026 | Steamer | ROS | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 7.83 | 4.37 | 1.21 | .290 | 72.5% | 4.48 | 4.74 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 1 | 3.6 | 8.46 | 4.42 | 1.11 | .290 | 69.3% | 4.44 | 4.49 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingCollege
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 3 | 6 | 4.21 | 17 | 16 | 0 | 0 | 0 | 77.0 | 325 | 63 | 47 | 36 | 6 | 27 | 9 | 8 | 0 | 98 | ||||
| 2022 | ORST | NCAA | 11 | 2 | 2.53 | 18 | 17 | 0 | 0 | 1 | 103.1 | 407 | 67 | 31 | 29 | 3 | 23 | 10 | 3 | 0 | 161 | ||||
| 2023 | STL | A+ | 2 | 3 | 3.51 | 10 | 8 | 0 | 0 | 0 | 1 | 0 | 41.0 | 171 | 26 | 17 | 16 | 8 | 25 | 0 | 4 | 4 | 0 | 51 | |
| 2024 | STL | A+ | 0 | 3 | 3.35 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 37.2 | 159 | 25 | 14 | 14 | 3 | 20 | 0 | 6 | 1 | 0 | 56 | |
| 2024 | STL | AA | 2 | 1 | 3.07 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 14.2 | 57 | 6 | 5 | 5 | 0 | 8 | 0 | 0 | 0 | 0 | 20 | |
| 2024 | STL | MiLB | 2 | 4 | 3.27 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 52.1 | 216 | 31 | 19 | 19 | 3 | 28 | 0 | 6 | 1 | 0 | 76 | |
| 2024 | STL | ST | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 8 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 4 | |
| 2025 | STL | ST | 0 | 0 | 6.00 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 3.0 | 16 | 4 | 2 | 2 | 0 | 3 | 0 | 0 | 1 | 0 | 4 | |
| 2026 | Steamer | PROJ | 0 | 0 | 4.51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.44 | 1 | 1 | 0 | 0 | 0 | 3.6 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 4.48 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.44 | 1 | 1 | 0 | 0 | 0 | 3.6 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 |
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 3 | 6 | 4.21 | 17 | 16 | 0 | 0 | 0 | 77.0 | 325 | 63 | 47 | 36 | 6 | 27 | 9 | 8 | 0 | 98 | ||||
| 2022 | ORST | NCAA | 11 | 2 | 2.53 | 18 | 17 | 0 | 0 | 1 | 103.1 | 407 | 67 | 31 | 29 | 3 | 23 | 10 | 3 | 0 | 161 | ||||
| 2023 | STL | A+ | 2 | 3 | 3.51 | 10 | 8 | 0 | 0 | 0 | 1 | 0 | 41.0 | 171 | 26 | 17 | 16 | 8 | 25 | 0 | 4 | 4 | 0 | 51 | |
| 2024 | STL | A+ | 0 | 3 | 3.35 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 37.2 | 159 | 25 | 14 | 14 | 3 | 20 | 0 | 6 | 1 | 0 | 56 | |
| 2024 | STL | AA | 2 | 1 | 3.07 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 14.2 | 57 | 6 | 5 | 5 | 0 | 8 | 0 | 0 | 0 | 0 | 20 | |
| 2024 | STL | MiLB | 2 | 4 | 3.27 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 52.1 | 216 | 31 | 19 | 19 | 3 | 28 | 0 | 6 | 1 | 0 | 76 | |
| 2024 | STL | ST | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 8 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 4 | |
| 2025 | STL | ST | 0 | 0 | 6.00 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 3.0 | 16 | 4 | 2 | 2 | 0 | 3 | 0 | 0 | 1 | 0 | 4 | |
| 2026 | Steamer | PROJ | 0 | 0 | 4.51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.44 | 1 | 1 | 0 | 0 | 0 | 3.6 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 | |||||
| 2026 | Steamer | ROS | 0 | 0 | 4.48 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.44 | 1 | 1 | 0 | 0 | 0 | 3.6 | 15 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 3 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingAveragesCollege
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 11.45 | 3.16 | 3.63 | 0.70 | 30.2% | 8.3% | 21.8% | .218 | 1.17 | .308 | 57.4% | 3.07 | ||||||
| 2022 | ORST | NCAA | 14.02 | 2.00 | 7.00 | 0.26 | 39.6% | 5.7% | 33.9% | .179 | 0.87 | .305 | 72.0% | 1.42 | ||||||
| 2023 | STL | A+ | 11.20 | 5.49 | 2.04 | 1.76 | 29.8% | 14.6% | 15.2% | .183 | 1.24 | .217 | 86.8% | 84 | 136 | 5.67 | ||||
| 2024 | STL | A+ | 13.38 | 4.78 | 2.80 | 0.72 | 35.2% | 12.6% | 22.6% | .188 | 1.19 | .297 | 79.1% | 83 | 89 | 3.57 | ||||
| 2024 | STL | AA | 12.27 | 4.91 | 2.50 | 0.00 | 35.1% | 14.0% | 21.1% | .122 | 0.95 | .207 | 64.3% | 73 | 54 | 2.32 | ||||
| 2024 | STL | MiLB | 13.07 | 4.82 | 2.71 | 0.52 | 35.2% | 13.0% | 22.2% | .170 | 1.13 | .272 | 75.7% | 80 | 79 | 3.22 | ||||
| 2024 | STL | ST | 18.00 | 9.00 | 2.00 | 0.00 | 50.0% | 25.0% | 25.0% | .000 | 1.00 | .000 | 100.0% | 0 | 59 | 2.74 | ||||
| 2025 | STL | ST | 12.00 | 9.00 | 1.33 | 0.00 | 25.0% | 18.8% | 6.3% | .308 | 2.33 | .444 | 71.4% | 126 | 83 | 4.07 | ||||
| 2026 | Steamer | PROJ | 7.64 | 4.26 | 1.79 | 1.21 | 19.2% | 10.7% | 8.5% | .252 | 1.45 | .290 | 72.3% | 4.76 | ||||||
| 2026 | OOPSY | PROJ | 8.46 | 4.42 | 1.91 | 1.11 | 22.4% | 11.7% | 10.7% | .240 | 1.37 | .290 | 69.3% | 4.49 | ||||||
| 2026 | Steamer | ROS | 7.83 | 4.37 | 1.79 | 1.21 | 19.7% | 11.0% | 8.7% | .250 | 1.45 | .290 | 72.5% | 4.74 | ||||||
| 2026 | OOPSY | ROS | 8.46 | 4.42 | 1.91 | 1.11 | 22.4% | 11.7% | 10.7% | .240 | 1.37 | .290 | 69.3% | 4.49 |
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | ORST | NCAA | 11.45 | 3.16 | 3.63 | 0.70 | 30.2% | 8.3% | 21.8% | .218 | 1.17 | .308 | 57.4% | 3.07 | ||||||
| 2022 | ORST | NCAA | 14.02 | 2.00 | 7.00 | 0.26 | 39.6% | 5.7% | 33.9% | .179 | 0.87 | .305 | 72.0% | 1.42 | ||||||
| 2023 | STL | A+ | 11.20 | 5.49 | 2.04 | 1.76 | 29.8% | 14.6% | 15.2% | .183 | 1.24 | .217 | 86.8% | 84 | 136 | 5.67 | ||||
| 2024 | STL | A+ | 13.38 | 4.78 | 2.80 | 0.72 | 35.2% | 12.6% | 22.6% | .188 | 1.19 | .297 | 79.1% | 83 | 89 | 3.57 | ||||
| 2024 | STL | AA | 12.27 | 4.91 | 2.50 | 0.00 | 35.1% | 14.0% | 21.1% | .122 | 0.95 | .207 | 64.3% | 73 | 54 | 2.32 | ||||
| 2024 | STL | MiLB | 13.07 | 4.82 | 2.71 | 0.52 | 35.2% | 13.0% | 22.2% | .170 | 1.13 | .272 | 75.7% | 80 | 79 | 3.22 | ||||
| 2024 | STL | ST | 18.00 | 9.00 | 2.00 | 0.00 | 50.0% | 25.0% | 25.0% | .000 | 1.00 | .000 | 100.0% | 0 | 59 | 2.74 | ||||
| 2025 | STL | ST | 12.00 | 9.00 | 1.33 | 0.00 | 25.0% | 18.8% | 6.3% | .308 | 2.33 | .444 | 71.4% | 126 | 83 | 4.07 | ||||
| 2026 | Steamer | PROJ | 7.64 | 4.26 | 1.79 | 1.21 | 19.2% | 10.7% | 8.5% | .252 | 1.45 | .290 | 72.3% | 4.76 | ||||||
| 2026 | OOPSY | PROJ | 8.46 | 4.42 | 1.91 | 1.11 | 22.4% | 11.7% | 10.7% | .240 | 1.37 | .290 | 69.3% | 4.49 | ||||||
| 2026 | Steamer | ROS | 7.83 | 4.37 | 1.79 | 1.21 | 19.7% | 11.0% | 8.7% | .250 | 1.45 | .290 | 72.5% | 4.74 | ||||||
| 2026 | OOPSY | ROS | 8.46 | 4.42 | 1.91 | 1.11 | 22.4% | 11.7% | 10.7% | .240 | 1.37 | .290 | 69.3% | 4.49 |
