DataBaseball
2026

Head to head · 2026 batting

Carson Kelly vs Mike Yastrzemski

In 2026 Carson Kelly has been worth 1.2 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.

2026 season

2026 batting. The stronger figure in each row is highlighted — for strikeout rate that is the lower one.
StatisticCarson KellyMike Yastrzemski
G116138
PA425408
H9881
HR1012
RBI5841
SB01
AVG.258.224
OBP.336.309
SLG.376.380
OPS.713.688
ISO.118.155
BB%9.4%10.0%
K%16.5%24.0%
wOBA.322.308
wRC+10292
WAR1.80.6

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.
StatisticCarson KellyMike Yastrzemski
G1011
PA3727
H61
HR10
RBI11
BB11
SO138
SB00
AVG.176.040
OBP.243.077
SLG.265.040
OPS.508.117

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.
StatisticCarson KellyMike Yastrzemski
G755968
PA2,6483,547
H547735
2B99180
3B324
HR81135
RBI315405
BB259370
SO518863
SB526
AVG.234.236
SLG.382.440
WAR9.913.4

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.