Players · P · Pitcher · 2007 regular season
Billy Petrick
- Age
- 23
- B/T
- R/R
- Height
- 6' 6"
- Weight
- 240 lb
- Number
- #56
- Born
- April 29, 1984 in Kankakee, IL, United States
- MLB debut
- June 27, 2007
- dbWAR
- -.3 Regular season, 1 season(s)
- IP
- 9.2
- ERA
- 7.45
- FIP
- 8.21
- K/9
- 5.6
- FIP−
- 183 100 = avg
Billy Petrick was a relief pitcher for the Chicago Cubs. In 2007 he struck out 6 batters over 9.2 innings across 8 appearances, going 0-0. His ERA of 7.45 was 66.5% higher than the league average of 4.47. Stripping out defence, his 8.21 FIP suggests that his ERA had some help behind him. He missed bats on 20.5% of swings (8.7% of every pitch he threw), walked 16.7% of the batters he faced and struck out 14.3%. His -0.3 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, 2007 regular season.
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | CHC | 8 | 0 | 9.2 | 0 | 0 | 0 | 8 | 8 | 6 | 7 | 7.45 | 8.21 | 1.55 | 5.6 | 6.5 | 167 | 183 | -0.3 | — |
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 | 17 | 14 | 2 | 0 | 3 | 3 | .143 | .294 | .214 | .257 | 17.6% |
| vs RHB | 25 | 21 | 6 | 3 | 4 | 3 | .286 | .400 | .714 | .468 | 12.0% |
Not in the 2007 data: pitch types, recorded in every park from 2008. The play-by-play goes back to 2005, but the measurements on each pitch and batted ball arrived later, so the panels built from them are left off this season.
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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.