MLB Daily DeltaWeek 17 · July 18, 2026
Engraved portrait of Blas Castaño
week 17
this weekHOLD
last weekNO CALL

Blas Castaño

data as of July 18, 2026·week 17
ON THE 15-DAY IL
new call
Hold · wait & see skill near league average (5.84); hold and wait — key skill metric not yet stable enough to call.med 0.50 (narrative held for review)
ROSK 25ERA 3.70WHIP 1.24W 0–0SV 0

Castaño is a hold — limited data, near league skill.

ROS projects K 10 YTD → 25 ROS. Stable, rosterable; no clear edge to exploit either way.

Drivers

  • xeraNOISEskill near league average (5.84)
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed50.0%
50.0%*
lg avg 40.0% +10.0%vs his norm —
60 / 50 BBE
Barrel % Allowed10.0%
10.0%*
lg avg 8.0% +2.0%vs his norm —
60 / 60 BBE
xwOBA Allowed.367
.367*
lg avg .315 +.052vs his norm —xwOBA Allowed is above the ~.315 league averageexpect it to fall.
85 / 200 TBF
xERA5.84
5.84*
lg avg 4.10 +1.74vs his norm —xERA is above the ~4.10 league averageexpect it to fall.
85 / 200 TBF
ERA3.92
3.92*
lg avg 4.10 −0.18vs his norm —ERA is below the ~4.10 league averageexpect it to rise.
20.7 / 200 IP
Strikeout %20.0%
20.0%*
lg avg 22.0% −2.0%vs his norm —
85 / 70 TBF
Walk %7.1%
7.1%*
lg avg 8.0% −0.9%vs his norm —Walk % is below the ~8.0% league averageexpect it to rise.
85 / 170 TBF
BABIP Against.321
.321*
lg avg .295 +.026vs his norm —BABIP Against is above the ~.295 league averageexpect it to fall.
60 / 800 BIP
Swinging-Strike %9.0%
9.0%*
lg avg 11.0% −2.0%vs his norm —
85 / 60 TBF
Chase %28.1%
28.1%*
lg avg 28.5% −0.4%vs his norm —
85 / 60 TBF
Fastball Velo94.5 mph
94.5 mph*
lg avg 94.0 mph +0.5 mphvs his norm —
343 / 50 PITCHES

5×5 ROS Outlook

rest of season

Where each category goes the rest of the way, and the skill that drives it. Tap a row to expand the full derivation.

statytdrosdriverconf
K% 20.0%→20.8%signal25 K — K% 20.0% (signal) lifted to RP mean ~24.0% → projected 20.8% over ~27 remaining IP.
xERA 5.84noise3.70 ERA — xERA 5.84 (noise) blended 0% skill / 100% league 3.70 at 11 IP.
BB% 7.1% + contactnoise1.24 WHIP — a 7% walk rate plus BABIP-against 0.297 gives a 1.34 skill WHIP, blended 0%…
run support + role0-0 W — wins ride run support and how deep he goes, not just skill.
role (middle)0 SV — role: middle, not in the save mix.
rosterdeep3.70 ERA, 1.24 WHIP

Every projection traces to a sabermetric input. The driver and confidence shown per row are always visible; tap any row to expand the full derivation.

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