week 27
this weekHOLD
last weekHOLD
Reiver Sanmartin
data as of September 27, 2026·week 27
ON THE 15-DAY IL
Hold · wait & see skill near league average (4.03); hold and wait — key skill metric not yet stable enough to call.med 0.50 (narrative held for review)
ROSK 0ERA 3.70WHIP 1.24W 0–0SV 0
Sanmartin is a hold — league average, nothing unstable either way.
ROS projects K 2 YTD → 0 ROS. Stable, rosterable; no clear edge to exploit either way.
VS His Norm
- Strikeout %17.2%—−2.1% ▼vs his ~19.3% career norm
Drivers
- xeraNOISEskill near league average (4.03)
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed37.1%
lg avg 40.0% ▼−2.9%vs his norm —
70 / 50 BBE
Barrel % Allowed10.0%
lg avg 8.0% ▲+2.0%vs his norm —
70 / 60 BBE
xwOBA Allowed.309
lg avg .315 ▼−.006vs his norm —xwOBA Allowed is below the ~.315 league average — expect it to rise.
93 / 200 TBF
xERA4.03
lg avg 4.10 ▼−0.07vs his norm —xERA is below the ~4.10 league average — expect it to rise.
93 / 200 TBF
ERA4.22
lg avg 4.10 ▲+0.12vs his norm —ERA is above the ~4.10 league average — expect it to fall.
21.3 / 200 IP
Strikeout %17.2%
lg avg 22.0% ▼−4.8%vs his norm −2.1% ▼
93 / 70 TBF
Walk %7.5%
lg avg 8.0% ▼−0.5%vs his norm −3.3% ▼Walk % is below his ~10.8% norm — expect it to rise.
93 / 170 TBF
BABIP Against.288
lg avg .295 ▼−.007vs his norm —BABIP Against is below the ~.295 league average — expect it to rise.
70 / 800 BIP
Swinging-Strike %9.9%
lg avg 11.0% ▼−1.1%vs his norm —
93 / 60 TBF
Chase %32.1%
lg avg 28.5% ▲+3.6%vs his norm —
93 / 60 TBF
Fastball Velo92.2 mph
lg avg 94.0 mph ▼−1.8 mphvs his norm —
345 / 50 PITCHES
5×5 ROS Outlook
rest of seasonWhere each category goes the rest of the way, and the skill that drives it. Tap a row to expand the full derivation.
statytdrosdriverconf
K% 17.2%→18.6%signal0 K — K% 17.2% (signal) lifted to career ~19.3% → projected 18.6% over ~0 remaining IP.
xERA 4.03noise3.70 ERA — xERA 4.03 (noise) blended 0% skill / 100% league 3.70 at 2 IP.
BB% 7.5% + contactnoise1.24 WHIP — a 8% walk rate plus BABIP-against 0.294 gives a 1.40 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.