week 25
this weekHOLD
last weekSELL-HIGH
Cionel Pérez
data as of September 10, 2026·week 25
ON THE 15-DAY IL
flipped from SELL-HIGH
Hold · wait & see skill near league average (5.15); hold and wait — key skill metric not yet stable enough to call.med 0.50 (narrative held for review)
ROSK 2WHIP 1.24ERA 3.70W 0–1SV 0
Pérez is a hold — nothing here is pulling either way.
ROS projects K 10 YTD → 2 ROS, WHIP 1.59 YTD → 1.24 ROS. Stable, rosterable; no clear edge to exploit either way.
VS His Norm
- Walk %8.8%—−3.6% ▼vs his ~12.4% career norm
- Strikeout %22.7%—+2.6% ▲vs his ~20.1% career norm
Drivers
- xeraNOISEskill near league average (5.15)
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed50.0%
lg avg 40.0% ▲+10.0%vs his norm —
124 / 50 BBE
Barrel % Allowed12.9%
lg avg 8.0% ▲+4.9%vs his norm —
124 / 60 BBE
xwOBA Allowed.346
lg avg .315 ▲+.031vs his norm —xwOBA Allowed is above the ~.315 league average — expect it to fall.
181 / 200 TBF
xERA5.15
lg avg 4.10 ▲+1.05vs his norm —xERA is above the ~4.10 league average — expect it to fall.
181 / 200 TBF
ERA4.97
lg avg 4.10 ▲+0.87vs his norm —ERA is above the ~4.10 league average — expect it to fall.
41.7 / 200 IP
Strikeout %22.7%
lg avg 22.0% ▲+0.7%vs his norm +2.6% ▲
181 / 70 TBF
Walk %8.8%
lg avg 8.0% ▲+0.8%vs his norm −3.6% ▼
181 / 170 TBF
BABIP Against.316
lg avg .295 ▲+.021vs his norm —BABIP Against is above the ~.295 league average — expect it to fall.
124 / 800 BIP
Swinging-Strike %11.6%
lg avg 11.0% ▲+0.6%vs his norm —
181 / 60 TBF
Chase %30.0%
lg avg 28.5% ▲+1.5%vs his norm —
181 / 60 TBF
Fastball Velo96.9 mph
lg avg 94.0 mph ▲+2.9 mphvs his norm —
702 / 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% 22.7%→21.3%signal2 K — K% 22.7% (signal) tempered to career ~20.1% → projected 21.3% over ~5 remaining IP.
xERA 5.15noise3.70 ERA — xERA 5.15 (noise) blended 0% skill / 100% league 3.70 at 17 IP.
BB% 8.8% + contactsignal1.24 WHIP — a 9% walk rate plus BABIP-against 0.298 gives a 1.37 skill WHIP, blended 0%…
run support + role0-1 W — wins ride run support and how deep he goes, not just skill.
role (setup)0 SV — role: setup, 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.