Head to head · 2026 pitching
Kenley Jansen vs Luke Weaver
In 2026 Luke Weaver has been worth 1.1 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 | Kenley Jansen | Luke Weaver |
|---|---|---|
| G | 50 | 60 |
| GS | 0 | 0 |
| IP | 45.0 | 60.1 |
| W | 4 | 4 |
| SO | 51 | 65 |
| ERA | 3.20 | 2.69 |
| FIP | 4.46 | 2.97 |
| WHIP | 1.04 | 0.96 |
| K/9 | 10.2 | 9.7 |
| BB/9 | 4.6 | 2.4 |
| FIP− | 107 | 71 |
| WAR | 0.1 | 1.2 |
Postseason
Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.
| Statistic | Kenley Jansen | Luke Weaver |
|---|---|---|
| G | 59 | 15 |
| GS | 0 | 0 |
| IP | 65.1 | 15.2 |
| W | 3 | 1 |
| SV | 20 | 4 |
| SO | 94 | 16 |
| BB | 18 | 4 |
| ERA | 2.20 | 4.60 |
| WHIP | 0.80 | 1.02 |
| K/9 | 12.9 | 9.2 |
| BB/9 | 2.5 | 2.3 |
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 | Kenley Jansen | Luke Weaver |
|---|---|---|
| G | 984 | 330 |
| GS | 0 | 106 |
| IP | 972.1 | 783.1 |
| W | 58 | 42 |
| L | 46 | 50 |
| SV | 498 | 13 |
| SO | 1,329 | 811 |
| BB | 305 | 250 |
| ERA | 2.60 | 4.58 |
| WHIP | 0.97 | 1.31 |
| K/9 | 12.3 | 9.3 |
| BB/9 | 2.8 | 2.9 |
| HR/9 | 0.9 | 1.3 |
| WAR | 21.4 | 9.1 |
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.