Head to head · 2026 pitching
Jack Flaherty vs Casey Mize
In 2026 Casey Mize has been worth 0.5 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.
2026 season
| Statistic | Jack Flaherty | Casey Mize |
|---|---|---|
| G | 20 | 26 |
| GS | 19 | 26 |
| IP | 88.1 | 131.1 |
| W | 3 | 6 |
| SO | 103 | 110 |
| ERA | 4.48 | 4.32 |
| FIP | 4.05 | 4.15 |
| WHIP | 1.39 | 1.23 |
| K/9 | 10.5 | 7.5 |
| BB/9 | 4.3 | 2.6 |
| FIP− | 97 | 99 |
| WAR | 1.1 | 1.6 |
Postseason
Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.
| Statistic | Jack Flaherty | Casey Mize |
|---|---|---|
| G | 13 | 2 |
| GS | 11 | 2 |
| IP | 57.0 | 6.0 |
| W | 2 | 0 |
| SV | 0 | 0 |
| SO | 58 | 7 |
| BB | 26 | 4 |
| ERA | 5.05 | 3.00 |
| WHIP | 1.44 | 1.17 |
| K/9 | 9.2 | 10.5 |
| BB/9 | 4.1 | 6.0 |
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 | Jack Flaherty | Casey Mize |
|---|---|---|
| G | 210 | 115 |
| GS | 203 | 113 |
| IP | 1,079.0 | 571.1 |
| W | 66 | 29 |
| L | 64 | 35 |
| SV | 0 | 0 |
| SO | 1,233 | 475 |
| BB | 393 | 159 |
| ERA | 3.85 | 4.22 |
| WHIP | 1.21 | 1.27 |
| K/9 | 10.3 | 7.5 |
| BB/9 | 3.3 | 2.5 |
| HR/9 | 1.2 | 1.3 |
| WAR | 16.9 | 6.1 |
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.