Pitcher · 2026
Joe Rock
- Age
- 26
- B/T
- L/L
- Height
- 6' 6"
- Weight
- 220 lb
- Number
- #46
- Born
- July 29, 2000 in Sewickley, PA, USA
- MLB debut
- June 28, 2025
- Drafted
- 2021, round CB-B
- College
- Ohio
- dbWAR
- .1 2 season(s)
- IP
- 10.1
- ERA
- 3.48
- FIP
- 4.54
- K/9
- 10.5
- FIP−
- 109 100 = avg
Joe Rock is a relief pitcher for the Chicago White Sox. In 2026 he struck out 12 batters over 10.1 innings across 4 appearances, going 0-1. His ERA of 3.48 was 16.6% lower than the league average of 4.18. Stripping out defence, his 4.54 FIP suggests that his ERA had some help behind him. He missed bats on 27.4% of swings (11.8% of every pitch he threw), walked 20.8% of the batters he faced and struck out 22.6%. His 0.0 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2026.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 30 | 20 | 5 | 0 | 8 | 6 | .250 | .500 | .250 | .391 | 20.0% |
| vs RHB | 23 | 20 | 6 | 0 | 3 | 6 | .300 | .391 | .350 | .343 | 26.1% |
Pitch sequencing
What Joe Rock throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Joe Rock throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Four-Seam Fastball | 95 | 93.3 | 2,340 | 47.4% | 27.0% | |
| Slider | 73 | 84.9 | 2,538 | 46.6% | 34.2% | |
| Sinker | 20 | 93.7 | 2,395 | 40.0% | 0.0% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4 | 0 | 10.1 | 0 | 1 | 0 | 11 | 4 | 12 | 11 | 3.48 | 4.54 | 2.13 | 10.5 | 9.6 | 83 | 109 | 0.0 | |
| 2025 | 3 | 0 | 7.2 | 0 | 0 | 0 | 7 | 2 | 11 | 2 | 2.35 | 3.53 | 1.17 | 12.9 | 2.3 | 56 | 85 | 0.1 |
Head to head
Put Joe Rock beside up to three others.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.