JB Middleton
Colorado Rockies (A)P
Age: 22
Bats/Throws: R/R
6'0" / 178
DOB: 11/24/2003
(22 years, 6 months, 4 days)
P
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In-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 19 | 0 | 3 | 0 | 8 | 1 | 9.1 | 10.61 | 3.86 | 2.89 | .304 | 54.7% | 8.68 | 8.26 | |||||||||
| 2024 | USM | NCAA | 20 | 2 | 1 | 2 | 24 | 2 | 37.1 | 10.85 | 6.03 | 0.72 | .297 | 68.8% | 4.34 | 4.82 | |||||||||
| 2025 | USM | NCAA | 21 | 10 | 1 | 0 | 16 | 16 | 105.1 | 10.42 | 2.14 | 0.68 | .229 | 81.3% | 2.31 | 3.56 | |||||||||
| 2026 | COL | A | 22 | 0 | 0 | 0 | 5 | 5 | 20.0 | 8.10 | 5.85 | 1.35 | .321 | 79.3% | 59.3% | 25.0% | 4.95 | 7.23 | 6.23 | ||||||
| 2026 | Steamer | ROS | 22 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.64 | 5.74 | 1.56 | .319 | 65.6% | 6.93 | 6.37 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 4.0 | 4.97 | 4.78 | 1.35 | .316 | 64.5% | 6.21 | 5.75 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 19 | 0 | 3 | 0 | 8 | 1 | 9.1 | 10.61 | 3.86 | 2.89 | .304 | 54.7% | 8.68 | 8.26 | |||||||||
| 2024 | USM | NCAA | 20 | 2 | 1 | 2 | 24 | 2 | 37.1 | 10.85 | 6.03 | 0.72 | .297 | 68.8% | 4.34 | 4.82 | |||||||||
| 2025 | USM | NCAA | 21 | 10 | 1 | 0 | 16 | 16 | 105.1 | 10.42 | 2.14 | 0.68 | .229 | 81.3% | 2.31 | 3.56 | |||||||||
| 2026 | COL | A | 22 | 0 | 0 | 0 | 5 | 5 | 20.0 | 8.10 | 5.85 | 1.35 | .321 | 79.3% | 59.3% | 25.0% | 4.95 | 7.23 | 6.23 | ||||||
| 2026 | Steamer | ROS | 22 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4.64 | 5.74 | 1.56 | .319 | 65.6% | 6.93 | 6.37 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 22 | 0 | 0 | 0 | 1 | 1 | 4.0 | 4.97 | 4.78 | 1.35 | .316 | 64.5% | 6.21 | 5.75 | 0.0 |
In-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 0 | 3 | 8.68 | 8 | 1 | 0 | 0 | 0 | 9.1 | 44 | 10 | 10 | 9 | 3 | 4 | 3 | 1 | 0 | 11 | ||||
| 2024 | USM | NCAA | 2 | 1 | 4.34 | 24 | 2 | 0 | 0 | 2 | 37.1 | 167 | 30 | 21 | 18 | 3 | 25 | 3 | 5 | 0 | 45 | ||||
| 2025 | USM | NCAA | 10 | 1 | 2.31 | 16 | 16 | 1 | 0 | 0 | 105.1 | 415 | 65 | 28 | 27 | 8 | 25 | 11 | 4 | 1 | 122 | ||||
| 2026 | COL | A | 0 | 0 | 4.95 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 20.0 | 93 | 21 | 11 | 11 | 3 | 13 | 0 | 3 | 0 | 0 | 18 | |
| 2026 | Steamer | ROS | 0 | 0 | 6.93 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.21 | 1 | 1 | 0 | 0 | 0 | 4.0 | 19 | 5 | 3 | 3 | 1 | 2 | 0 | 0 | 2 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 0 | 3 | 8.68 | 8 | 1 | 0 | 0 | 0 | 9.1 | 44 | 10 | 10 | 9 | 3 | 4 | 3 | 1 | 0 | 11 | ||||
| 2024 | USM | NCAA | 2 | 1 | 4.34 | 24 | 2 | 0 | 0 | 2 | 37.1 | 167 | 30 | 21 | 18 | 3 | 25 | 3 | 5 | 0 | 45 | ||||
| 2025 | USM | NCAA | 10 | 1 | 2.31 | 16 | 16 | 1 | 0 | 0 | 105.1 | 415 | 65 | 28 | 27 | 8 | 25 | 11 | 4 | 1 | 122 | ||||
| 2026 | COL | A | 0 | 0 | 4.95 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 20.0 | 93 | 21 | 11 | 11 | 3 | 13 | 0 | 3 | 0 | 0 | 18 | |
| 2026 | Steamer | ROS | 0 | 0 | 6.93 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.21 | 1 | 1 | 0 | 0 | 0 | 4.0 | 19 | 5 | 3 | 3 | 1 | 2 | 0 | 0 | 2 |
In-Season ProjectionsMinor LeaguesAveragesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 10.61 | 3.86 | 2.75 | 2.89 | 25.0% | 9.1% | 15.9% | .270 | 1.50 | .304 | 54.7% | 8.26 | ||||||
| 2024 | USM | NCAA | 10.85 | 6.03 | 1.80 | 0.72 | 26.9% | 15.0% | 12.0% | .216 | 1.47 | .297 | 68.8% | 4.82 | ||||||
| 2025 | USM | NCAA | 10.42 | 2.14 | 4.88 | 0.68 | 29.4% | 6.0% | 23.4% | .172 | 0.85 | .229 | 81.3% | 3.56 | ||||||
| 2026 | COL | A | 8.10 | 5.85 | 1.38 | 1.35 | 19.4% | 14.0% | 5.4% | .273 | 1.70 | .321 | 79.3% | 89 | 127 | 7.23 | ||||
| 2026 | Steamer | ROS | 4.64 | 5.74 | 0.81 | 1.56 | 10.7% | 13.2% | -2.5% | .308 | 1.91 | .319 | 65.6% | 6.37 | ||||||
| 2026 | OOPSY | ROS | 4.97 | 4.78 | 1.04 | 1.35 | 11.9% | 11.4% | 0.5% | .298 | 1.74 | .316 | 64.5% | 5.75 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | USM | NCAA | 10.61 | 3.86 | 2.75 | 2.89 | 25.0% | 9.1% | 15.9% | .270 | 1.50 | .304 | 54.7% | 8.26 | ||||||
| 2024 | USM | NCAA | 10.85 | 6.03 | 1.80 | 0.72 | 26.9% | 15.0% | 12.0% | .216 | 1.47 | .297 | 68.8% | 4.82 | ||||||
| 2025 | USM | NCAA | 10.42 | 2.14 | 4.88 | 0.68 | 29.4% | 6.0% | 23.4% | .172 | 0.85 | .229 | 81.3% | 3.56 | ||||||
| 2026 | COL | A | 8.10 | 5.85 | 1.38 | 1.35 | 19.4% | 14.0% | 5.4% | .273 | 1.70 | .321 | 79.3% | 89 | 127 | 7.23 | ||||
| 2026 | Steamer | ROS | 4.64 | 5.74 | 0.81 | 1.56 | 10.7% | 13.2% | -2.5% | .308 | 1.91 | .319 | 65.6% | 6.37 | ||||||
| 2026 | OOPSY | ROS | 4.97 | 4.78 | 1.04 | 1.35 | 11.9% | 11.4% | 0.5% | .298 | 1.74 | .316 | 64.5% | 5.75 |
