DataBaseball
2026

Head to head · 2025 batting

Ke'Bryan Hayes vs Emmanuel Rivera

In 2025 Ke'Bryan Hayes has been worth 0.1 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.

2025 season

2025 batting. The stronger figure in each row is highlighted — for strikeout rate that is the lower one.
StatisticKe'Bryan HayesEmmanuel Rivera
G14939
PA570127
H12430
HR50
RBI4913
SB121
AVG.235.250
OBP.290.291
SLG.306.283
OPS.595.575
ISO.070.033
BB%6.3%4.7%
K%19.5%18.9%
wOBA.268.261
wRC+6761
WAR-0.2-0.3

Postseason

Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.

Every published postseason, batting, summed with the rates recomputed from the counts.
StatisticKe'Bryan HayesEmmanuel Rivera
G28
PA619
H04
HR00
RBI03
BB01
SO02
SB00
AVG.000.222
OBP.000.263
SLG.000.278
OPS.000.541

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.

Career batting totals. AVG and SLG are recomputed from the components rather than averaged; OBP, wOBA and wRC+ need each season’s own constants and are left to the season table.
StatisticKe'Bryan HayesEmmanuel Rivera
G695346
PA2,7841,169
H623260
2B10946
3B185
HR4722
RBI234116
BB18885
SO567253
SB647
AVG.243.245
SLG.354.360
WAR3.91.5

More head to heads

The same seasons, measured against somebody else.

How these are computed

wOBA uses linear weights measured from this season’s own play-by-play rather than published constants, and wRC+ is park-adjusted against that 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.