Ranci Castillo
Boston Red Sox (DSL)P
Age: 20
Bats/Throws: R/R
5'11" / 192
DOB: 7/17/2006
(20 years, 3 months, 5 days)
P
Player Dashboard:
| Season | 2026 |
| Team | BOS |
| Level | MiLB |
| G | 15 |
| GS | 1 |
| IP | 22.1 |
| K% | 19.1% |
| BB% | 20.0% |
| GB% | 50.8% |
| ERA | 4.03 |
| FIP | 6.80 |
| WAR |
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| Season | 2026 |
| Team | BOS |
| Level | MiLB |
| G | 15 |
| GS | 1 |
| IP | 22.1 |
| K% | 19.1% |
| BB% | 20.0% |
| GB% | 50.8% |
| ERA | 4.03 |
| FIP | 6.80 |
| WAR |
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Minor Leagues
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 18 | 0 | 0 | 0 | 2 | 0 | 4.1 | 6.23 | 4.15 | 0.00 | .250 | 83.3% | 54.5% | 0.0% | 2.08 | 4.73 | 5.36 | ||||||
| 2025 | BOS | DSL | 18 | 3 | 1 | 2 | 15 | 0 | 22.1 | 9.67 | 5.24 | 0.40 | .375 | 51.8% | 40.4% | 5.0% | 5.24 | 4.48 | 4.51 | ||||||
| 2025 | BOS | MiLB | 18 | 3 | 1 | 2 | 17 | 0 | 26.2 | 9.11 | 5.06 | 0.34 | .355 | 56.1% | 42.6% | 4.2% | 4.73 | 4.52 | 4.65 | ||||||
| 2026 | BOS | DSL | 19 | 1 | 2 | 0 | 15 | 1 | 22.1 | 8.46 | 8.87 | 0.40 | .377 | 72.6% | 50.8% | 6.3% | 4.03 | 6.80 | 6.80 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 18 | 0 | 0 | 0 | 2 | 0 | 4.1 | 6.23 | 4.15 | 0.00 | .250 | 83.3% | 54.5% | 0.0% | 2.08 | 4.73 | 5.36 | ||||||
| 2025 | BOS | DSL | 18 | 3 | 1 | 2 | 15 | 0 | 22.1 | 9.67 | 5.24 | 0.40 | .375 | 51.8% | 40.4% | 5.0% | 5.24 | 4.48 | 4.51 | ||||||
| 2025 | BOS | MiLB | 18 | 3 | 1 | 2 | 17 | 0 | 26.2 | 9.11 | 5.06 | 0.34 | .355 | 56.1% | 42.6% | 4.2% | 4.73 | 4.52 | 4.65 | ||||||
| 2026 | BOS | DSL | 19 | 1 | 2 | 0 | 15 | 1 | 22.1 | 8.46 | 8.87 | 0.40 | .377 | 72.6% | 50.8% | 6.3% | 4.03 | 6.80 | 6.80 |
Minor Leagues
Minor LeaguesAverages
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 6.23 | 4.15 | 1.50 | 0.00 | 16.7% | 11.1% | 5.6% | .200 | 1.15 | .250 | 83.3% | 40 | 91 | 4.73 | ||||
| 2025 | BOS | DSL | 9.67 | 5.24 | 1.85 | 0.40 | 23.1% | 12.5% | 10.6% | .281 | 1.70 | .375 | 51.8% | 102 | 85 | 4.48 | ||||
| 2025 | BOS | MiLB | 9.11 | 5.06 | 1.80 | 0.34 | 22.1% | 12.3% | 9.8% | .269 | 1.61 | .355 | 56.1% | 91 | 86 | 4.52 | ||||
| 2026 | BOS | DSL | 8.46 | 8.87 | 0.95 | 0.40 | 19.1% | 20.0% | -0.9% | .289 | 2.06 | .377 | 72.6% | 65 | 110 | 6.80 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 6.23 | 4.15 | 1.50 | 0.00 | 16.7% | 11.1% | 5.6% | .200 | 1.15 | .250 | 83.3% | 40 | 91 | 4.73 | ||||
| 2025 | BOS | DSL | 9.67 | 5.24 | 1.85 | 0.40 | 23.1% | 12.5% | 10.6% | .281 | 1.70 | .375 | 51.8% | 102 | 85 | 4.48 | ||||
| 2025 | BOS | MiLB | 9.11 | 5.06 | 1.80 | 0.34 | 22.1% | 12.3% | 9.8% | .269 | 1.61 | .355 | 56.1% | 91 | 86 | 4.52 | ||||
| 2026 | BOS | DSL | 8.46 | 8.87 | 0.95 | 0.40 | 19.1% | 20.0% | -0.9% | .289 | 2.06 | .377 | 72.6% | 65 | 110 | 6.80 |
Minor Leagues
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 1.50 | 9.1% | 54.5% | 36.4% | 50.0% | 0.0% | 33.3% | 41.7% | 25.0% | 102 | 5.36 | |||||||||
| 2025 | BOS | DSL | 1.15 | 24.6% | 40.4% | 35.1% | 20.0% | 5.0% | 36.2% | 22.4% | 41.4% | 86 | 4.51 | |||||||||
| 2025 | BOS | MiLB | 1.21 | 22.1% | 42.6% | 35.3% | 25.0% | 4.2% | 35.7% | 25.7% | 38.6% | 88 | 4.65 | |||||||||
| 2026 | BOS | DSL | 1.88 | 22.0% | 50.8% | 27.1% | 18.8% | 6.3% | 50.8% | 23.0% | 26.2% | 109 | 6.80 |
| Season | Team | Level | GB/FB | LD% | GB% | FB% | IFFB% | HR/FB | IFH% | BUH% | divider | Pull% | Cent% | Oppo% | divider | Soft% | Med% | Hard% | divider | SIERA | xFIP- | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | DSL | 1.50 | 9.1% | 54.5% | 36.4% | 50.0% | 0.0% | 33.3% | 41.7% | 25.0% | 102 | 5.36 | |||||||||
| 2025 | BOS | DSL | 1.15 | 24.6% | 40.4% | 35.1% | 20.0% | 5.0% | 36.2% | 22.4% | 41.4% | 86 | 4.51 | |||||||||
| 2025 | BOS | MiLB | 1.21 | 22.1% | 42.6% | 35.3% | 25.0% | 4.2% | 35.7% | 25.7% | 38.6% | 88 | 4.65 | |||||||||
| 2026 | BOS | DSL | 1.88 | 22.0% | 50.8% | 27.1% | 18.8% | 6.3% | 50.8% | 23.0% | 26.2% | 109 | 6.80 |
Minor Leagues
MLB F-Strike%, SwStr%, CStr%, CSW% are from the Sports Info Solution data source.
All MiLB and Pace data are from Statcast.
All MiLB and Pace data are from Statcast.
Minor LeaguesAverages

