Head to head · 2026 pitching
Aaron Bummer vs Kyle Leahy
In 2026 Kyle Leahy has been worth 3.4 more wins. Both lines are computed from play-by-play on the same constants, so they are measured the same way rather than quoted from two sources.
- Their 2025 seasons were among each other's nearest on rate statistics.
2026 season
| Statistic | Aaron Bummer | Kyle Leahy |
|---|---|---|
| G | 21 | 30 |
| GS | 0 | 30 |
| IP | 16.2 | 140.0 |
| W | 1 | 10 |
| SO | 13 | 132 |
| ERA | 10.26 | 3.66 |
| FIP | 9.16 | 3.60 |
| WHIP | 2.10 | 1.34 |
| K/9 | 7.0 | 8.5 |
| BB/9 | 5.9 | 2.6 |
| FIP− | 219 | 86 |
| WAR | -0.9 | 2.5 |
Postseason
Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.
| Statistic | Aaron Bummer | Kyle Leahy |
|---|---|---|
| G | 6 | — |
| GS | 0 | — |
| IP | 7.1 | — |
| W | 0 | — |
| SV | 0 | — |
| SO | 9 | — |
| BB | 3 | — |
| ERA | 3.68 | — |
| WHIP | 1.23 | — |
| K/9 | 11.0 | — |
| BB/9 | 3.7 | — |
Career
Totalled over the seasons published here, which is not the same as a whole career: a player who debuted before 2005 begins at 2005, not at his real first game.
| Statistic | Aaron Bummer | Kyle Leahy |
|---|---|---|
| G | 408 | 128 |
| GS | 2 | 31 |
| IP | 398.1 | 278.1 |
| W | 22 | 15 |
| L | 22 | 9 |
| SV | 5 | 2 |
| SO | 442 | 247 |
| BB | 175 | 84 |
| ERA | 4.07 | 3.65 |
| WHIP | 1.35 | 1.28 |
| K/9 | 10.0 | 8.0 |
| BB/9 | 4.0 | 2.7 |
| HR/9 | 0.7 | 0.8 |
| WAR | 5.9 | 4.5 |
More head to heads
The same seasons, measured against somebody else.
FIP uses the constant solved from this season’s own runs, and FIP− is park-adjusted against the same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page. To put these two beside a third, the comparison page takes up to four.