Po-Yu Chen
Pittsburgh Pirates (AA)P
Age: 23
Bats/Throws: L/R
6'2" / 187
DOB: 10/2/2001
(23 years, 1 month, 28 days)
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Preseason ProjectionsMinor LeaguesSpring Training
| 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 | PIT | CPX | 19 | 2 | 0 | 0 | 6 | 6 | 26.0 | 10.04 | 0.00 | 0.00 | .273 | 85.7% | 60.3% | 0.0% | 0.69 | 2.26 | 3.16 | ||||||
| 2021 | PIT | A | 19 | 1 | 1 | 0 | 4 | 4 | 16.0 | 8.44 | 6.75 | 1.13 | .289 | 66.2% | 28.9% | 13.3% | 5.63 | 6.36 | 6.03 | ||||||
| 2022 | PIT | A | 20 | 4 | 8 | 0 | 22 | 22 | 98.1 | 9.43 | 3.29 | 0.73 | .300 | 64.0% | 41.4% | 10.0% | 4.58 | 3.76 | 3.81 | ||||||
| 2023 | PIT | A+ | 21 | 5 | 8 | 0 | 25 | 24 | 119.2 | 9.33 | 3.23 | 1.58 | .326 | 75.2% | 40.9% | 20.8% | 4.44 | 5.22 | 4.12 | ||||||
| 2024 | PIT | AA | 22 | 4 | 10 | 0 | 27 | 25 | 134.0 | 6.45 | 2.89 | 0.81 | .288 | 69.6% | 43.5% | 8.0% | 4.03 | 4.34 | 4.57 | ||||||
| 2025 | FGDC FanGraphs DC | PROJ | 23 | 0 | 0 | 0 | 8 | 0 | 8.0 | 6.36 | 3.04 | 1.21 | .299 | 70.1% | 4.63 | 4.68 | 0.0 | ||||||||
| 2025 | Steamer Steamer | PROJ | 23 | 0 | 0 | 0 | 8 | 0 | 8.0 | 6.36 | 3.04 | 1.21 | .299 | 70.1% | 43.1% | 4.63 | 4.68 | 4.72 | 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 | PIT | CPX | 19 | 2 | 0 | 0 | 6 | 6 | 26.0 | 10.04 | 0.00 | 0.00 | .273 | 85.7% | 60.3% | 0.0% | 0.69 | 2.26 | 3.16 | ||||||
| 2021 | PIT | A | 19 | 1 | 1 | 0 | 4 | 4 | 16.0 | 8.44 | 6.75 | 1.13 | .289 | 66.2% | 28.9% | 13.3% | 5.63 | 6.36 | 6.03 | ||||||
| 2022 | PIT | A | 20 | 4 | 8 | 0 | 22 | 22 | 98.1 | 9.43 | 3.29 | 0.73 | .300 | 64.0% | 41.4% | 10.0% | 4.58 | 3.76 | 3.81 | ||||||
| 2023 | PIT | A+ | 21 | 5 | 8 | 0 | 25 | 24 | 119.2 | 9.33 | 3.23 | 1.58 | .326 | 75.2% | 40.9% | 20.8% | 4.44 | 5.22 | 4.12 | ||||||
| 2024 | PIT | AA | 22 | 4 | 10 | 0 | 27 | 25 | 134.0 | 6.45 | 2.89 | 0.81 | .288 | 69.6% | 43.5% | 8.0% | 4.03 | 4.34 | 4.57 | ||||||
| 2025 | FGDC FanGraphs DC | PROJ | 23 | 0 | 0 | 0 | 8 | 0 | 8.0 | 6.36 | 3.04 | 1.21 | .299 | 70.1% | 4.63 | 4.68 | 0.0 | ||||||||
| 2025 | Steamer Steamer | PROJ | 23 | 0 | 0 | 0 | 8 | 0 | 8.0 | 6.36 | 3.04 | 1.21 | .299 | 70.1% | 43.1% | 4.63 | 4.68 | 4.72 | 0.0 |
Preseason ProjectionsMinor LeaguesSpring Training
| 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 | 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 | PIT | CPX | 2 | 0 | 0.69 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 26.0 | 98 | 18 | 3 | 2 | 0 | 0 | 0 | 3 | 1 | 1 | 29 | |
| 2021 | PIT | A | 1 | 1 | 5.63 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 16.0 | 77 | 15 | 12 | 10 | 2 | 12 | 0 | 3 | 1 | 2 | 15 | |
| 2022 | PIT | A | 4 | 8 | 4.58 | 22 | 22 | 0 | 0 | 0 | 0 | 0 | 98.1 | 420 | 88 | 54 | 50 | 8 | 36 | 0 | 6 | 6 | 3 | 103 | |
| 2023 | PIT | A+ | 5 | 8 | 4.44 | 25 | 24 | 0 | 0 | 0 | 0 | 0 | 119.2 | 506 | 122 | 65 | 59 | 21 | 43 | 0 | 8 | 6 | 0 | 124 | |
| 2024 | PIT | AA | 4 | 10 | 4.03 | 27 | 25 | 0 | 0 | 0 | 0 | 0 | 134.0 | 573 | 130 | 68 | 60 | 12 | 43 | 0 | 12 | 3 | 1 | 96 | |
| 2025 | FGDC FanGraphs DC | PROJ | 0 | 0 | 4.63 | 8 | 0 | 0 | 1 | 8.0 | 35 | 9 | 4 | 4 | 1 | 3 | 0 | 6 | |||||||
| 2025 | Steamer Steamer | PROJ | 0 | 0 | 4.63 | 8 | 0 | 0 | 0 | 0 | 1 | 8.0 | 35 | 9 | 4 | 4 | 1 | 3 | 0 | 6 |
| 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 | 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 | PIT | CPX | 2 | 0 | 0.69 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 26.0 | 98 | 18 | 3 | 2 | 0 | 0 | 0 | 3 | 1 | 1 | 29 | |
| 2021 | PIT | A | 1 | 1 | 5.63 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 16.0 | 77 | 15 | 12 | 10 | 2 | 12 | 0 | 3 | 1 | 2 | 15 | |
| 2022 | PIT | A | 4 | 8 | 4.58 | 22 | 22 | 0 | 0 | 0 | 0 | 0 | 98.1 | 420 | 88 | 54 | 50 | 8 | 36 | 0 | 6 | 6 | 3 | 103 | |
| 2023 | PIT | A+ | 5 | 8 | 4.44 | 25 | 24 | 0 | 0 | 0 | 0 | 0 | 119.2 | 506 | 122 | 65 | 59 | 21 | 43 | 0 | 8 | 6 | 0 | 124 | |
| 2024 | PIT | AA | 4 | 10 | 4.03 | 27 | 25 | 0 | 0 | 0 | 0 | 0 | 134.0 | 573 | 130 | 68 | 60 | 12 | 43 | 0 | 12 | 3 | 1 | 96 | |
| 2025 | FGDC FanGraphs DC | PROJ | 0 | 0 | 4.63 | 8 | 0 | 0 | 1 | 8.0 | 35 | 9 | 4 | 4 | 1 | 3 | 0 | 6 | |||||||
| 2025 | Steamer Steamer | PROJ | 0 | 0 | 4.63 | 8 | 0 | 0 | 0 | 0 | 1 | 8.0 | 35 | 9 | 4 | 4 | 1 | 3 | 0 | 6 |
Preseason ProjectionsMinor LeaguesSpring TrainingAverages
| 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 | PIT | CPX | 10.04 | 0.00 | 29.00 | 0.00 | 29.6% | 0.0% | 29.6% | .189 | 0.69 | .273 | 85.7% | 2.26 | ||||||
| 2021 | PIT | A | 8.44 | 6.75 | 1.25 | 1.13 | 19.5% | 15.6% | 3.9% | .242 | 1.69 | .289 | 66.2% | 6.36 | ||||||
| 2022 | PIT | A | 9.43 | 3.29 | 2.86 | 0.73 | 24.5% | 8.6% | 16.0% | .233 | 1.26 | .300 | 64.0% | 3.76 | ||||||
| 2023 | PIT | A+ | 9.33 | 3.23 | 2.88 | 1.58 | 24.5% | 8.5% | 16.0% | .268 | 1.38 | .326 | 75.2% | 5.22 | ||||||
| 2024 | PIT | AA | 6.45 | 2.89 | 2.23 | 0.81 | 16.8% | 7.5% | 9.2% | .251 | 1.29 | .288 | 69.6% | 4.34 | ||||||
| 2025 | FGDC FanGraphs DC | PROJ | 6.36 | 3.04 | 2.09 | 1.21 | 16.2% | 7.7% | 8.4% | .269 | 1.41 | .299 | 70.1% | 4.68 | ||||||
| 2025 | Steamer Steamer | PROJ | 6.36 | 3.04 | 2.09 | 1.21 | 16.2% | 7.7% | 8.4% | .269 | 1.41 | .299 | 70.1% | 4.68 |
| 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 | PIT | CPX | 10.04 | 0.00 | 29.00 | 0.00 | 29.6% | 0.0% | 29.6% | .189 | 0.69 | .273 | 85.7% | 2.26 | ||||||
| 2021 | PIT | A | 8.44 | 6.75 | 1.25 | 1.13 | 19.5% | 15.6% | 3.9% | .242 | 1.69 | .289 | 66.2% | 6.36 | ||||||
| 2022 | PIT | A | 9.43 | 3.29 | 2.86 | 0.73 | 24.5% | 8.6% | 16.0% | .233 | 1.26 | .300 | 64.0% | 3.76 | ||||||
| 2023 | PIT | A+ | 9.33 | 3.23 | 2.88 | 1.58 | 24.5% | 8.5% | 16.0% | .268 | 1.38 | .326 | 75.2% | 5.22 | ||||||
| 2024 | PIT | AA | 6.45 | 2.89 | 2.23 | 0.81 | 16.8% | 7.5% | 9.2% | .251 | 1.29 | .288 | 69.6% | 4.34 | ||||||
| 2025 | FGDC FanGraphs DC | PROJ | 6.36 | 3.04 | 2.09 | 1.21 | 16.2% | 7.7% | 8.4% | .269 | 1.41 | .299 | 70.1% | 4.68 | ||||||
| 2025 | Steamer Steamer | PROJ | 6.36 | 3.04 | 2.09 | 1.21 | 16.2% | 7.7% | 8.4% | .269 | 1.41 | .299 | 70.1% | 4.68 |