week 17
this weekHOLD
last weekNO CALL
Seth Halvorsen
data as of July 18, 2026·week 17
ON THE 15-DAY IL
new call
Hold · wait & see skill near league average (6.98); hold and wait — key skill metric not yet stable enough to call.med 0.50 (narrative held for review)
ROSK 24ERA 3.70WHIP 1.24W 0–0SV 0
Halvorsen is a hold — limited data, near-league skill indicators.
ROS projects K 13 YTD → 24 ROS. Stable, rosterable; no clear edge to exploit either way.
VS His Norm
- Strikeout %17.7%—−4.6% ▼vs his ~22.3% career norm
Drivers
- xeraNOISEskill near league average (6.98)
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed39.1%
lg avg 40.0% ▼−0.9%vs his norm —
64 / 50 BBE
Barrel % Allowed6.3%
lg avg 8.0% ▼−1.7%vs his norm —
64 / 60 BBE
xwOBA Allowed.395
lg avg .315 ▲+.080vs his norm —xwOBA Allowed is above the ~.315 league average — expect it to fall.
96 / 200 TBF
xERA6.98
lg avg 4.10 ▲+2.88vs his norm —xERA is above the ~4.10 league average — expect it to fall.
96 / 200 TBF
ERA4.74
lg avg 4.10 ▲+0.64vs his norm —ERA is above the ~4.10 league average — expect it to fall.
19 / 200 IP
Strikeout %17.7%
lg avg 22.0% ▼−4.3%vs his norm −4.6% ▼
96 / 70 TBF
Walk %15.6%
lg avg 8.0% ▲+7.6%vs his norm +3.9% ▲Walk % is above his ~11.7% norm — expect it to fall.
96 / 170 TBF
BABIP Against.311
lg avg .295 ▲+.016vs his norm —BABIP Against is above the ~.295 league average — expect it to fall.
64 / 800 BIP
Swinging-Strike %10.9%
lg avg 11.0% ▼−0.1%vs his norm —
96 / 60 TBF
Chase %26.9%
lg avg 28.5% ▼−1.6%vs his norm —
96 / 60 TBF
Fastball Velo98.8 mph
lg avg 94.0 mph ▲+4.8 mphvs his norm —
375 / 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% 17.7%→20.8%signal24 K — K% 17.7% (signal) lifted to career ~22.3% → projected 20.8% over ~19 remaining IP.
xERA 6.98noise3.70 ERA — xERA 6.98 (noise) blended 0% skill / 100% league 3.70 at 12 IP.
BB% 15.6% + contactnoise1.24 WHIP — a 16% walk rate plus BABIP-against 0.296 gives a 1.79 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.