Head to head · 2026 batting

Isaac Collins vs Fernando Tatis Jr.

In 2026 Fernando Tatis Jr. has been worth 4.7 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.

Isaac Collins KC

Fernando Tatis Jr.SD

2026 season

2026 batting. The stronger figure in each row is highlighted — for strikeout rate that is the lower one.
Statistic	Isaac Collins	Fernando Tatis Jr.
G	143	159
PA	519	704
H	94	181
HR	6	25
RBI	40	83
SB	8	38
AVG	.213	.289
OBP	.320	.358
SLG	.321	.470
OPS	.641	.828
ISO	.109	.181
BB%	12.3%	9.1%
K%	23.1%	18.5%
wOBA	.297	.360
wRC+	81	134
WAR	-0.1	4.6

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.
Statistic	Isaac Collins	Fernando Tatis Jr.
G	6	22
PA	10	96
H	0	23
HR	0	8
RBI	0	15
BB	1	11
SO	7	19
SB	0	3
AVG	.000	.274
OBP	.100	.365
SLG	.000	.619
OPS	.100	.984

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.
Statistic	Isaac Collins	Fernando Tatis Jr.
G	278	829
PA	979	3,643
H	194	901
2B	46	168
3B	6	15
HR	15	177
RBI	94	476
BB	123	357
SO	223	820
SB	25	162
AVG	.233	.279
SLG	.357	.505
WAR	2.1	28.6

Isaac Collins’s full profile →Fernando Tatis Jr.’s full profile →

More head to heads

The same seasons, measured against somebody else.

Isaac Collins vs

Fernando Tatis Jr. vs

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.