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Blas Castaño

#63 - Relief Pitcher

Colorado Rockies

Bats / Throws Right / Right
Date of Birth 9/8/1998 (28)
Height, Weight 5'10", 162 lb
Hometown Espaillat, DOM

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 27.1 3.62 1.32 18.9% 8.1%
219th 3
Sv
280th 49.0
IP
135th 4.26
ERA
169th 1.35
WHIP
249th 22.5%
K%
112th 9.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
94.1 8.9% 27.0% 49.3% 7.6% 4.77 4.13
177th 94.7
FB MPH
315th 12.1%
SwStr%
239th 28.5%
CSW%
245th 51.1%
Str-ICR
344th 4.7%
MTK%
301st 4.94
PLV
275th 3.54
PLA

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Blas Castaño Overview

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Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR% GB% SwStr% CSW% IPR% PLV
2025 SEA 1 0 3.0 0-0 0 0 9.00 2.00 9.50 9.80 9.54 4.72 6.3% 12.5% 12.0 3.00 .273 20.0% 71.4% 50.0% 25.0% 2.0% 14.0% 0.04 4.47
2026 COL 15 0 27.1 2-0 0 0 3.62 1.32 4.67 4.69 4.63 4.13 18.9% 8.1% 8.9 1.32 .307 19.0% 80.2% 45.6% 44.9% 8.9% 27.0% 0.50 4.77
RP MLB Percentile 7 0 19 33-84 0 0 62 51 27 30 32 22 27 67 34 33 35 37 82 5 55 10 30 50 12
RP MLB AVG 39 2 49.0 3-3 3 7 4.26 1.35 4.22 4.23 4.29 3.54 22.5% 9.8% 8.3 1.11 .291 17.5% 72.5% 36.9% 43.8% 12.1% 28.5% 0.50 4.94
Career 16 0 30.1 2-0 0 0 4.15 1.38 5.15 5.18 5.10 4.19 17.3% 8.7% 9.2 1.48 .302 19.2% 78.9% 46.2% 42.2% 8.2% 25.7% 0.45 4.75

Blas Castaño Repertoire

2025 2026 All
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Blas Castaño Game Log

Blas Castaño Standard

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Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2025 SEA 1 0 3.0 0-0 0 0 0 50 31 19 16 4 1 2 0 1 1 2 1 0
2026 COL 15 0 27.1 2-0 0 0 0 460 299 161 111 27 18 3 2 4 21 9 2 0
RP MLB Percentile 7 0 19 33-84 0 0 0 19 20 82 16 75 74 86 5 56 15 86 44 76
RP MLB AVG 39 2 49.0 3-3 0 3 7 830 530 299 213 45 30 8 1 6 48 20 3 2
Career 16 0 30.1 2-0 0 0 0 510 330 180 127 31 19 5 2 5 22 11 3 0

Blas Castaño Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2025 SEA 6.3% 12.5% .308 .692 1.130 .470 .273 .333 .306 .482 .239 .467 91.4 91.2 19.3 9.50
2026 COL 18.9% 8.1% .273 .465 .807 .351 .307 .342 .253 .341 .275 .382 91.3 90.5 8.4 4.67
RP MLB Percentile 27 67 25 18 20 20 35 31 30 27 55 28 2 30 79 27
RP MLB AVG 22.5% 9.8% .241 .390 .714 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 4.22
Career 17.3% 8.7% .277 .491 .845 .366 .302 .341 .259 .360 .271 .394 91.3 90.6 9.9 5.15

Blas Castaño Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2025 SEA10.0% (93.3)6.0% (93.9)40.0% (89.8)-12.0% (82.1)-32.0% (88.6)-- 16.0% 84.0%
2026 COL12.2% (94.5)40.2% (94.1)13.9% (90.5)-23.5% (82.8)-10.2% (89.0)-- 52.4% 47.6%
RP MLB Percentile 4 (44) 82 (49) 35 (66) - 61 (55) - 31 (78) - - 61.8% 38.5%
RP MLB AVG 38.6% (94.7) 26.5% (94.0) 19.7% (89.4) 25.8% (86.0) 21.1% (82.4) 15.5% (80.3) 17.2% (86.1) 18.7% (86.6) 42.7% (61.5) 48.6% 51.2%
Career12.0% (94.4)36.9% (94.1)16.5% (90.3)-22.4% (82.7)-12.4% (88.9)-- 48.8% 51.2%

Blas Castaño Pitch › Results

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Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2025 SEA0.0% (0)0.0% (0)25.0% (0)-16.7% (0)-6.3% (1)-- 0.0% 16.7%
2026 COL23.2% (4)29.2% (12)28.1% (5)-26.9% (16)-21.3% (4)-- 27.8% 26.0%
RP MLB Percentile 16 (2) 59 (33) 54 (59) - 39 (39) - 45 (65) - - 49.9% 26.6%
RP MLB AVG 27.0% (30) 27.4% (12) 26.8% (14) 29.7% (26) 28.3% (18) 27.0% (14) 22.0% (19) 22.2% (19) 19.3% (9) 27.9% 28.7%
Career21.3% (4)28.7% (12)27.4% (5)-26.3% (16)-17.5% (5)-- 26.9% 24.5%

Blas Castaño Batted Ball › Contact

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Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR%
2025 SEA 25.0% 33.3% 41.7% 0.0% 58.3% 41.7% 50.0% 8.3% 24.0% 50.0% 16.7% 8.3% 25.0% 50.0%
2026 COL 44.9% 26.9% 26.9% 1.3% 39.7% 44.3% 39.2% 16.5% 20.9% 53.8% 25.6% 11.5% 9.0% 45.6%
RP MLB Percentile 55 10 70 0 15 73 90 3 86 5 39 2 19 5
RP MLB AVG 43.8% 21.7% 24.3% 10.2% 34.7% 41.0% 33.6% 25.4% 18.2% 62.9% 24.6% 5.9% 6.8% 36.9%
Career 42.2% 27.8% 28.9% 1.1% 42.2% 44.0% 40.7% 15.4% 21.2% 53.3% 24.4% 11.1% 11.1% 46.2%

Blas Castaño Batted Ball › Outcomes

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Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2025 SEA .308 .470 .273 .333 .306 .482 .239 .467 91.4 91.2 19.3 20.0% 50.0% 37.5%
2026 COL .273 .351 .307 .342 .253 .341 .275 .382 91.3 90.5 8.4 19.0% 45.6% 32.4%
RP MLB Percentile 25 20 35 31 30 27 55 28 2 30 79 37 5 4
RP MLB AVG .241 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 17.5% 36.9% 24.5%
Career .277 .366 .302 .341 .259 .360 .271 .394 91.3 90.6 9.9 19.2% 46.2% 33.1%

Blas Castaño Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR% Str-ICR
2025 SEA 56.0% 62.0% 50.0% 13.6% 4.0% 24.0% 96.0% 95.5% 100.0% 12.0% 2.0% 14.0% 24.0% 54.0% 0.04 38.0%
2026 COL 48.0% 65.0% 47.0% 28.0% 19.0% 20.9% 81.0% 86.6% 68.7% 18.0% 8.9% 27.0% 17.2% 59.1% 0.50 49.3%
RP MLB Percentile 87 67 44 18 11 86 11 29 10 77 10 30 51 59 50 29
RP MLB AVG 44.5% 63.8% 47.4% 31.7% 25.5% 18.2% 74.5% 84.0% 58.6% 16.4% 12.1% 28.5% 17.1% 58.3% 0.50 51.1%
Career 48.8% 64.7% 47.3% 26.8% 17.4% 21.2% 82.6% 87.7% 70.0% 17.5% 8.2% 25.7% 17.8% 58.6% 0.45 48.2%

Blas Castaño Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2025 SEA 56.0% 36.0% 32.0% 32.0% 20.0% 40.0% 40.0% 32.0% 36.0% 16.0%
2026 COL 48.0% 30.9% 25.4% 43.7% 30.2% 27.4% 42.4% 35.0% 39.6% 7.8%
RP MLB Percentile 87 26 65 82 21 8 61 87 21 85
RP MLB AVG 44.5% 34.5% 27.0% 38.5% 36.4% 22.9% 40.8% 29.9% 43.1% 6.6%
Career 48.8% 31.4% 26.1% 42.5% 29.2% 28.6% 42.2% 34.7% 39.2% 8.6%

Blas Castaño Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2025 SEA 64.0% 10.0% 26.0% 28.1% 56.3% 37.5% 15.6% - 7.7%
2026 COL 57.2% 10.9% 32.0% 12.9% 64.3% 55.4% 25.5% 22.4% 14.3%
RP MLB Percentile 26 69 77 24 74 90 92 14 12
RP MLB AVG 58.5% 12.1% 30.0% 14.5% 61.1% 50.2% 21.2% 26.8% 19.2%
Career 57.8% 10.8% 31.4% 14.6% 63.3% 53.1% 24.4% 20.6% 13.8%

Blas Castaño PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2025 SEA 50 4.47 36.0% 28.0% 36.0% 0.0% 4.0% 2.8 +2 4.72
2026 COL 460 4.77 40.9% 21.3% 37.8% 3.0% 7.6% 2.6 -3 4.13
RP MLB Percentile 19 12 4 93 31 31 2 40 64 22
RP MLB AVG 830 4.94 45.9% 17.4% 36.7% 9.1% 4.7% 0.7 0 3.54
Career 510 4.75 40.4% 22.0% 37.6% 2.7% 7.3% 5.4 -1 4.19
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