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Yainer Diaz

Astros
Number #21
Position C
Bats R
Throws R
Age 27
Height 5' 11"
Weight 195 lbs
Birth Place Azua Province, Dominican Republic
Born Sep 21, 1998

Key Insights

2026
There is one situation he is at his most dangerous in

Diaz is at his best against right-handers, with the bases empty, on fastballs: a 1.081 OPS there against .621 overall.

21 plate appearances in that situation.
He is a pull hitter, and defences can set up for it

Diaz pulls 24.1% of his batted balls and goes the other way with 26.4%, a spread a defence cannot cheat on.

21 pulled, 43 up the middle and 23 the other way over 87 located batted balls.
He almost never walks, which limits how he helps

Diaz walks in only 2.8% of his plate appearances, 6th percentile.

106 plate appearances in 2026. 6th percentile among qualified hitters in 2026, 395th in MLB.
He hits about the same with runners on as without

With a runner in scoring position Diaz has an OPS of .461; with the bases empty it is .692.

34 plate appearances with a runner in scoring position, 72 with the bases empty.
This is the kind of hitter he is, in one line

Diaz trades damage for contact: he rarely strikes out and rarely barrels one: 25th percentile barrel rate, 86th percentile strikeout rate.

106 plate appearances in 2026. both percentiles among qualified hitters in 2026.
Too much of his contact is weak

Just 28.7% of Diaz's contact reaches 95 mph, 15th percentile.

106 plate appearances in 2026. 15th percentile among qualified hitters in 2026, 360th in MLB.

Contextual Splits

Pitch
Outcome
Pitcher
Situation
Single
Double
Triple
Home Run
Out
Vs All Pitchers
Player Bio Data
DOB Sep 21, 1998
Birth Place Azua Province, Dominican Republic
Height 5' 11"
Weight 195 lbs LBS
Bats/Throws R/R