Head to head · 2026 pitching
Seth Halvorsen vs Justin Topa
In 2026 Justin Topa has been worth 0.2 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.
| Statistic | Seth Halvorsen | Justin Topa |
|---|---|---|
| G | 32 | 25 |
| GS | 0 | 0 |
| IP | 29.0 | 22.0 |
| W | 1 | 0 |
| SO | 23 | 15 |
| ERA | 5.90 | 6.95 |
| FIP | 6.17 | 6.01 |
| WHIP | 1.72 | 1.95 |
| K/9 | 7.1 | 6.1 |
| BB/9 | 5.3 | 4.9 |
| FIP− | 148 | 144 |
| WAR | -0.5 | -0.3 |
Career
Totalled over the seasons published here, which is not the same as a whole career: a player who debuted before 2015 begins at 2015, not at his real first game.
| Statistic | Seth Halvorsen | Justin Topa |
|---|---|---|
| G | 86 | 174 |
| GS | 0 | 1 |
| IP | 81.0 | 171.2 |
| W | 4 | 6 |
| L | 5 | 11 |
| SV | 13 | 9 |
| SO | 72 | 144 |
| BB | 40 | 53 |
| ERA | 4.78 | 4.19 |
| WHIP | 1.51 | 1.41 |
| K/9 | 8.0 | 7.5 |
| BB/9 | 4.4 | 2.8 |
| HR/9 | 1.7 | 0.7 |
| WAR | -0.5 | 2.4 |
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.

