Baseball · MLB · Umpires
All umpiresJohn Libka
John Libka has worked 233 completed games across 2017–2026. Every figure below is counted from those games, against the league rate in the seasons they worked.
Runs per game (both teams)9.1+0.1 vs league
Strikeouts per plate appearance0.23+0.013 vs league · across 21 games · small sample
Walks per plate appearance0.07−0.016 vs league · across 21 games · small sample
On-base rate0.30−0.017 vs league · across 21 games · small sample
Seasons2017–2026233 games
Season by season
| Season | Games | Runs/gm | League | vs league |
|---|---|---|---|---|
| 21 | 7.6 | 9.0 | −1.3 | |
| 31 | 8.1 | 8.9 | −0.8 | |
| 30 | 8.5 | 8.8 | −0.3 | |
| 31 | 10.6 | 9.2 | +1.4 | |
| 32 | 9.4 | 8.6 | +0.9 | |
| 32 | 9.6 | 9.1 | +0.5 | |
| 13 | 8.4 | 9.3 | −0.9 | |
| 26 | 10.2 | 9.7 | +0.6 | |
| 14 | 8.6 | 8.9 | −0.2 | |
| 3 | 7.0 | 9.3 | −2.3 | |