DataBaseball
2026

Head to head · 2024 pitching

Aaron Bummer vs Declan Cronin

In 2024 Declan Cronin has been worth 0.3 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.

2024 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticAaron BummerDeclan Cronin
G5656
GS00
IP55.170.1
W43
SO6972
ERA3.584.35
FIP2.232.58
WHIP1.431.42
K/911.29.2
BB/92.93.2
FIP−5563
WAR1.51.8

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.

Career pitching totals. ERA, WHIP and the per-nine rates are recomputed from the components rather than averaged; FIP needs each season’s own constant and is left to the table above.
StatisticAaron BummerDeclan Cronin
G40865
GS20
IP398.181.1
W223
L225
SV50
SO44280
BB17532
ERA4.074.98
WHIP1.351.45
K/910.08.9
BB/94.03.5
HR/90.70.4
WAR5.91.4

More head to heads

The same seasons, measured against somebody else.

How these are computed

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.