Head to head · 2026 Wild Card Series batting

Yainer Diaz vs Tristan Peters

In 2026 Tristan Peters 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.

Opponents in the 2026 Wild Card Series, where the Chicago White Sox won 2-0 over the Houston Astros.

Yainer Diaz HOU

Tristan Peters CWS

Postseason

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

2026 Wild Card Series.
Statistic	Yainer Diaz	Tristan Peters
G	2	2
PA	8	9
H	0	2
HR	0	0
RBI	0	1
BB	0	1
SO	4	2
SB	0	1
AVG	.000	.286
OBP	.000	.375
SLG	.000	.286
OPS	.000	.661

Every published postseason, batting, summed with the rates recomputed from the counts.
Statistic	Yainer Diaz	Tristan Peters
G	11	7
PA	30	24
H	3	6
HR	0	0
RBI	1	2
BB	1	2
SO	10	8
SB	0	1
AVG	.103	.286
OBP	.133	.348
SLG	.103	.333
OPS	.237	.681

2026 season

2026 batting. The stronger figure in each row is highlighted — for strikeout rate that is the lower one.
Statistic	Yainer Diaz	Tristan Peters
G	93	150
PA	361	491
H	98	116
HR	14	12
RBI	45	56
SB	0	8
AVG	.285	.265
OBP	.313	.337
SLG	.459	.437
OPS	.772	.774
ISO	.174	.172
BB%	3.3%	7.5%
K%	15.8%	18.3%
wOBA	.335	.342
wRC+	114	118
WAR	2.0	3.2

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	Yainer Diaz	Tristan Peters
G	492	154
PA	1,933	503
H	513	116
2B	93	31
3B	5	4
HR	73	12
RBI	260	56
BB	68	37
SO	335	97
SB	3	8
AVG	.280	.258
SLG	.455	.425
WAR	9.1	2.9

Yainer Diaz’s full profile →Tristan Peters’s full profile →

More head to heads

The same seasons, measured against somebody else.

Yainer Diaz vs

Tristan Peters 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.