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Blas Castaño

#63 - Relief Pitcher

Colorado Rockies

Bats / Throws Right / Right
Date of Birth 9/8/1998 (27)
Height, Weight 5'10", 162 lb
Hometown Espaillat, DOM

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 20.2 3.92 1.35 20.0% 7.1%
166th 2
Sv
220th 27.0
IP
170th 4.47
ERA
169th 1.40
WHIP
213th 22.1%
K%
72nd 10.2%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
94.1 9.3% 28.9% 49.9% 7.9% 4.82 3.91
166th 94.5
FB MPH
288th 12.0%
SwStr%
146th 28.4%
CSW%
190th 50.4%
Str-ICR
336th 4.6%
MTK%
261st 4.93
PLV
234th 3.53
PLA

Articles

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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 10 0 20.2 1-0 0 0 3.92 1.35 5.13 5.18 4.28 3.91 20.0% 7.1% 9.6 1.74 .321 28.6% 86.1% 45.0% 49.2% 9.3% 28.9% 0.54 4.82
RP MLB Percentile 18 0 36 34-69 0 0 52 50 23 23 52 33 38 78 26 18 30 14 91 10 73 19 58 66 24
RP MLB AVG 21 1 27.0 1-1 2 3 4.47 1.40 4.37 4.39 4.43 3.53 22.1% 10.2% 8.5 1.13 .293 18.6% 72.1% 37.5% 43.6% 12.0% 28.4% 0.49 4.93
Career 11 0 23.2 1-0 0 0 4.56 1.44 5.69 5.73 4.92 4.01 17.8% 7.9% 9.9 1.90 .313 26.3% 83.3% 45.8% 45.1% 8.4% 27.0% 0.48 4.78

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 10 0 20.2 1-0 0 0 0 343 225 118 85 22 14 2 2 4 17 6 2 0
RP MLB Percentile 18 0 36 34-69 0 0 0 34 37 68 33 45 47 70 3 22 29 79 20 57
RP MLB AVG 21 1 27.0 1-1 0 2 3 457 290 167 117 25 17 5 0 3 26 11 1 1
Career 11 0 23.2 1-0 0 0 0 393 256 137 101 26 15 4 2 5 18 8 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 20.0% 7.1% .289 .526 .879 .378 .321 .367 .264 .361 .281 .417 92.7 91.3 7.0 5.13
RP MLB Percentile 38 78 19 10 14 16 30 22 23 23 49 15 2 29 85 23
RP MLB AVG 22.1% 10.2% .245 .396 .726 .322 .293 .324 .238 .322 .282 .364 87.8 89.4 13.2 4.37
Career 17.8% 7.9% .292 .551 .917 .393 .313 .361 .270 .381 .274 .426 92.5 91.2 9.1 5.69

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 SEA 10.0% (93.3) 6.0% (93.9) 40.0% (89.8) - 12.0% (82.1) - 32.0% (88.6) - - 16.0% 84.0%
2026 COL 8.5% (94.5) 41.1% (94.1) 14.9% (90.3) - 24.8% (82.9) - 10.8% (89.2) - - 49.6% 50.4%
RP MLB Percentile 3 (46) 83 (49) 34 (59) - 63 (54) - 33 (77) - - 53.7% 46.6%
RP MLB AVG 37.4% (94.5) 25.4% (94.0) 21.2% (89.3) 26.1% (85.2) 21.5% (82.6) 17.8% (79.6) 18.0% (86.2) 19.5% (86.5) 31.8% (68.1) 47.9% 51.9%
Career 8.7% (94.3) 36.6% (94.1) 18.1% (90.2) - 23.2% (-) - 13.5% (89.0) - - 45.3% 54.7%

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 SEA 0.0% (0) 0.0% (0) 25.0% (0) - 16.7% (0) - 6.3% (1) - - 0.0% 16.7%
2026 COL 34.5% (2) 29.1% (9) 29.4% (5) - 30.6% (14) - 18.9% (2) - - 30.0% 27.7%
RP MLB Percentile 91 (89) 59 (24) 58 (49) - 63 (28) - 32 (69) - - 71.5% 40.1%
RP MLB AVG 26.8% (16) 27.1% (7) 27.2% (8) 29.8% (14) 28.0% (12) 27.2% (8) 21.5% (11) 23.9% (13) 23.3% (6) 27.6% 28.8%
Career 29.4% (2) 28.5% (9) 28.2% (5) - 29.7% (14) - 15.1% (3) - - 28.7% 25.6%

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 49.2% 27.1% 23.7% 0.0% 39.0% 48.3% 41.7% 10.0% 19.2% 54.2% 27.1% 8.5% 10.2% 45.0%
RP MLB Percentile 73 17 48 0 22 81 89 1 71 9 30 19 19 10
RP MLB AVG 43.6% 21.9% 24.2% 10.3% 34.6% 41.2% 33.7% 25.1% 17.8% 62.2% 24.7% 5.9% 7.2% 37.5%
Career 45.1% 28.2% 26.8% 0.0% 42.3% 47.2% 43.1% 9.7% 19.8% 53.5% 25.4% 8.5% 12.7% 45.8%

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 .289 .378 .321 .367 .264 .361 .281 .417 92.7 91.3 7.0 28.6% 45.0% 31.8%
RP MLB Percentile 19 16 30 22 23 23 49 15 2 29 85 14 10 6
RP MLB AVG .245 .322 .293 .324 .238 .322 .282 .364 87.8 89.4 13.2 18.6% 37.5% 24.9%
Career .292 .393 .313 .361 .270 .381 .274 .426 92.5 91.2 9.1 26.3% 45.8% 32.7%

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 49.3% 65.6% 46.1% 27.6% 20.3% 19.2% 79.7% 87.3% 62.5% 19.5% 9.3% 28.9% 17.5% 59.2% 0.54 49.9%
RP MLB Percentile 92 76 41 24 17 71 17 27 33 88 19 58 56 66 66 45
RP MLB AVG 44.5% 63.3% 46.9% 31.1% 25.5% 17.8% 74.5% 83.8% 58.7% 16.4% 12.0% 28.4% 17.1% 57.8% 0.49 50.4%
Career 50.1% 65.1% 46.6% 26.0% 18.0% 19.8% 82.0% 88.6% 64.7% 18.6% 8.4% 27.0% 18.3% 58.5% 0.48 48.3%

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 49.3% 30.0% 27.1% 42.9% 30.9% 29.4% 39.7% 33.8% 39.1% 8.7%
RP MLB Percentile 92 23 47 76 25 5 45 79 22 93
RP MLB AVG 44.5% 34.6% 27.0% 38.4% 36.3% 22.9% 40.9% 30.1% 42.9% 6.5%
Career 50.1% 30.8% 27.7% 41.5% 29.5% 30.8% 39.7% 33.6% 38.7% 9.7%

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 58.3% 10.8% 30.9% 13.5% 65.1% 55.8% 27.5% 22.6% 16.0%
RP MLB Percentile 45 72 65 36 80 84 96 21 26
RP MLB AVG 58.5% 12.4% 29.6% 14.4% 60.5% 49.7% 21.1% 26.2% 19.1%
Career 59.0% 10.7% 30.3% 15.5% 63.7% 52.9% 25.9% 20.2% 15.1%

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 343 4.82 41.4% 21.3% 37.3% 4.1% 7.9% 4.6 -1 3.91
RP MLB Percentile 34 24 14 94 48 48 5 25 58 33
RP MLB AVG 457 4.93 45.9% 17.2% 36.9% 9.0% 4.6% 0.9 +0 3.53
Career 393 4.78 40.7% 22.1% 37.2% 3.6% 7.4% 7.4 +1 4.01
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