JO

Jack OConnor

School
UVA
Born
2004-01-16
Hometown
Arlington, VA
Bats / Throws
R/R
Height / Weight
6-5 · 235

Cape League Pitching (expand stats for Game Logs)

2023 — Hyannis Harbor Hawks · UVA
Date Team Opp Result Dec GS IPABBF HRERHR BBIBBSO HBPSHSFWPBK ERAWHIPK/9BB/9FIPERA+
2023
Season Total  0-0 3 12.1 55 62 17 9 7 0 7 11 0 3 1 5.11 1.95 8.03 5.11 3.77 94

2023 Advanced Metrics (Trackman)

Pitching
Pitching
Exit Velo Against
80
76.7 mph
Hard-Hit % Against
41
17.9%
Ground Ball %
93
64.1%
K %
32
20.0%
BB %
26
12.8%
Whiff %
55
26.5%
Chase %
49
27.5%
Fastball Velocity
77
91.8 mph
Pitch-level percentiles vs. 2023 qualified pitchers (min 50 pitches); K%/BB% vs. qualified pitchers (min 8 IP); bar = percentile rank, value on right = actual stat
Pitch movement (catcher's-eye view, inches)
-20 -20 -10 -10 10 10 20 20 Fastball Slider Fastball Curveball Fastball Cutter ChangeUp Fastball Cutter Fastball ChangeUp Slider Slider Fastball Cutter Cutter Fastball ChangeUp Fastball Curveball Curveball Fastball TwoSeamFastBall TwoSeamFastBall Slider Fastball Slider Fastball Fastball ChangeUp TwoSeamFastBall ChangeUp Fastball Curveball Slider Slider Fastball Curveball Fastball ChangeUp TwoSeamFastBall ChangeUp Fastball Curveball ChangeUp Fastball TwoSeamFastBall TwoSeamFastBall Curveball ChangeUp Fastball Fastball Slider Fastball Fastball Curveball Curveball TwoSeamFastBall Fastball Fastball ChangeUp ChangeUp Fastball Curveball ChangeUp Fastball Fastball ChangeUp Fastball Fastball ChangeUp Fastball Curveball Fastball Fastball ChangeUp Fastball Sinker Curveball Fastball Curveball Fastball Fastball Slider Fastball Slider Fastball Curveball Curveball Fastball Curveball Fastball Curveball Fastball Cutter Fastball Curveball Fastball Sinker ChangeUp Curveball Fastball ChangeUp Fastball Curveball ChangeUp ChangeUp Cutter Curveball Fastball ChangeUp ChangeUp Fastball Curveball ChangeUp Fastball Curveball Fastball Cutter Fastball ChangeUp Fastball Curveball Fastball Fastball Curveball Curveball Fastball ChangeUp Cutter ChangeUp Cutter Fastball Fastball Curveball Fastball Fastball Sinker Fastball Cutter ChangeUp ChangeUp Fastball ChangeUp ChangeUp ChangeUp Cutter Fastball Cutter Fastball Cutter Fastball Cutter Fastball Cutter Sinker Curveball Curveball Cutter Fastball Curveball Fastball Fastball Curveball Fastball Fastball Fastball Cutter ChangeUp ChangeUp ChangeUp Fastball ChangeUp Fastball ChangeUp Cutter ChangeUp Fastball ChangeUp ChangeUp Sinker Fastball Cutter Cutter ChangeUp Sinker ChangeUp Fastball ChangeUp Fastball ChangeUp ChangeUp Fastball Fastball Fastball Fastball ChangeUp ChangeUp Cutter ChangeUp Fastball Fastball Curveball Fastball Fastball Horizontal Break (in) Induced Vertical Break (in)
PitchUsage%VeloSpiniVBHBWhiff%
Fastball 41.8% 91.8 2188 17.8 15.3 26.5
ChangeUp 22.3% 84.3 1789 11.5 15.8 43.5
Curveball 15.9% 76.6 2305 -8.6 -10.3 0.0
Cutter 9.5% 85.4 2226 10.2 1.2 11.1
Slider 4.5% 83.1 2249 4.9 -3.1 50.0
TwoSeamFastBall 3.2% 92.2 2244 14.3 17.9 33.3
Sinker 2.7% 91.5 2191 12.8 20.0 0.0
Rolling velo by game (2023-07-05 – 2023-07-20)
87.5 85.8
Run Value/100 replicates MLB's own published methodology: a count-conditioned run-expectancy model (base-out state × ball-strike count, same RE24 approach as the baserunning model but extended to the pitch level) values every single pitch, not just PA outcomes — a called strike moving the count from 1-1 to 1-2 has real value even though nothing "happened." Doesn't use Trackman at all, just play-by-play + pitch sequencing, so it isn't restricted to Trackman-covered games the way most of this section is. The Fielding row is a range-runs estimate: batted balls are bucketed by position + Trackman-derived difficulty (hang time/distance/exit velo, same buckets as the baserunning model), and the fielder — parsed directly from that specific play's PBP description, not a per-game starting lineup — is credited or debited the run-value gap between the bucket's expected out rate and what actually happened. Barrel% uses MLB's actual published EV/launch-angle lookup table — a ball must be hit 98+ mph, with the qualifying launch-angle window widening as EV climbs (a tight 26-30° band right at 98 mph, up to a wide 8-50° band at 116+ mph); Solid Contact % is a CCBL-only complement using that same table shifted 10 mph lower (88+ mph and up), since MLB's absolute 98+ mph Barrel threshold leaves ~70% of CCBL hitters flat at 0%. Hard-Hit % is exit velo alone, no launch-angle requirement: 95+ mph off the bat. xBA/xSLG/xwOBA use a k-nearest-neighbor model on this season's own batted balls, not MLB's own published model or league-wide MLB data — those, Fielding, and Run Value should be read as CCBL-relative, not compared directly to MLB's own advanced tracking numbers.