Reference layer
Current snapshot
| Age | 27 |
| Height | 5' 11" |
| Weight | 195 lb |
| Debut | 2022-09-02 |
Player profile / Houston Astros
Yainer Diaz
C · Bats/Throws R/R · 5' 11", 195 lb · Age 27
Club Houston Astros
Position C
Roster Active
Status Healthy / active roster
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | 619 | 70 | 175 | 16 | 2 | .299 | .325 | .441 | .766 |
| 2025 | 567 | 56 | 139 | 20 | 1 | .256 | .284 | .417 | .701 |
| 2026 | 179 | 18 | 41 | 6 | 0 | .241 | .268 | .400 | .668 |
| 5 Seasons | 1751 | 195 | 456 | 65 | 3 | .275 | .302 | .449 | .751 |
At a glance
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
36
Offense
percentile
percentile
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| xwOBA preseason | 0.339 |
| xwOBA current pace | 0.294 |
| xwOBA rolling p50 | 0.318 |
| Observed weight | 46% |
xwOBA
0.290
0.303
0.318
0.333
0.346
wOBA
0.279
0.300
0.323
0.346
0.367
ISO
0.120
0.137
0.156
0.175
0.192
K%
14.7%
16.0%
17.5%
19.0%
20.3%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%4.9%
47
-16 vs proj
Exit velocity87.7
45
Hard-hit%32.0%
22
-53 vs proj
xBA0.306
32
xSLG0.464
32
xwOBA0.294
36
-37 vs proj
BB%3.8%
8
Bat speed71.0
71
K%15.7%
85
Defense · percentile strip
Blocking Runs-0.3 · C
34
Catcher Throwing-0.1 · C
50
Framing Runs-3.6 · C
11
Pop Time2.0 · C
41
Baserunning · percentile strip
Sprint Speed25.8 · C
14
Mithrandir+
Plate skills: swing decisions and pitch-type resistance
Our research metrics for how this hitter controls the strike zone and handles each pitch family.
Avoids Bad ChasesST 54.7% · rebadged research
10
Avoids Bad TakesHPT 22.3% · rebadged research
74
Correct Decisions62.9% · rebadged research
21
Resists Breaking - horizontalwOBA 0.268 · borderline
87
Resists Breaking - verticalwOBA 0.269 · insufficient sample
82
Resists ChangeupwOBA 0.284 · validated thin sample
40
Resists Cutters + splitterswOBA 0.320 · insufficient sample
82
Resists FastballwOBA 0.341 · validated
44
Resists SinkerwOBA 0.356 · validated
62
SEAGER+ Plate Discipline94
17
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
109 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.
Zone profile
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Bat tracking
Swing path, attack angle, bat speed
Aggregate Savant bat-tracking metrics; not per-swing motion capture. The full swing, with the recommended path overlaid, lives in the 3D Swing Simulator.
Live layer
Delta / regression
| xwOBA Δ | -0.039 |
| wOBA Δ | -0.011 |
negative regression
Regression watch
Running hot. Expect some cooling.
Diaz’s wOBA sits at 0.323, but the quality of contact underneath says it should be 0.294 — a gap of 0.029, -0.9 standard deviations from the MLB norm over 185 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| Hitting | 1 | 2026-06-23 | Impact contact carried uneven swing decisions |
Projection links / recent games
Available detail
| 2026-04-20 @ CLE0 HR | 1 RBI / 7 Ch | 0 E | 1-4 | RBI |
| 2026-04-15 vs COL0 HR | 0 RBI / 15 Ch | 0 E | 0-4 |
| 2026-04-13 @ SEA0 HR | 1 RBI / 3 Ch | 0 E | 1-3 | RBI |
| 2026-04-12 @ SEA1 HR | 1 RBI / 8 Ch | 0 E | 1-3 | HR, RBI, R |
| 2026-04-11 @ SEA0 HR | 0 RBI / 9 Ch | 0 E | 0-5 | 2 K |