PITCHER MATCHUP

Kumar Rocker vs Houston Astros

How the Houston Astros's current regulars (top 9 by at-bats) project against Kumar Rocker's season-to-date arsenal — not the posted lineup for any single game.

Kumar Rocker's arsenal

Throws RHPvs LHH xwOBA .365vs RHH xwOBA .307Seasons 2026–2025–2024
Slider 32%Sinker 29%Cutter 17%Four-Seam Fastball 16%Changeup 5%Curveball 2%

How the Houston Astros's regulars project

Projected expected wOBA for each of the Houston Astros's top-9-by-AB hitters against Kumar Rocker, by batting order. A season-to-date read — lower favors the pitcher.

Lineup avg xwOBA .321
  1. 1 CW Christian Walker RHB .313
    Pitch-by-pitch projection vs. Christian Walker
    • Slider (32% usage) projects to .286 xwOBA over 274 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .341 xwOBA over 374 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .319 xwOBA over 126 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .310 xwOBA over 514 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .312 xwOBA over 173 BIP — a roughly even matchup.
  2. 2 YA Yordan Alvarez SH .393
    Pitch-by-pitch projection vs. Yordan Alvarez
    • Slider (32% usage) projects to .365 xwOBA over 191 BIP — a meaningful edge for the batter.
    • Sinker (29% usage) projects to .408 xwOBA over 235 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .397 xwOBA over 125 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .422 xwOBA over 434 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .372 xwOBA over 161 BIP — a meaningful edge for the batter.
  3. 3 IP Isaac Paredes RHB .318
    Pitch-by-pitch projection vs. Isaac Paredes
    • Slider (32% usage) projects to .296 xwOBA over 232 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .328 xwOBA over 363 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .329 xwOBA over 124 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .343 xwOBA over 501 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .274 xwOBA over 166 BIP — a clear edge for the pitcher.
  4. 4 JA Jose Altuve RHB .293
    Pitch-by-pitch projection vs. Jose Altuve
    • Slider (32% usage) projects to .268 xwOBA over 343 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .300 xwOBA over 358 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .315 xwOBA over 149 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .310 xwOBA over 487 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .277 xwOBA over 173 BIP — a clear edge for the pitcher.
  5. 5 CS Cam Smith RHB .320
    Pitch-by-pitch projection vs. Cam Smith
    • Slider (32% usage) projects to .300 xwOBA over 153 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .323 xwOBA over 260 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .349 xwOBA over 69 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .331 xwOBA over 256 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .300 xwOBA over 101 BIP — a roughly even matchup.
  6. 6 DV Daulton Varsho LHB .298
    Pitch-by-pitch projection vs. Daulton Varsho
    • Slider (32% usage) projects to .276 xwOBA over 147 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .295 xwOBA over 191 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .303 xwOBA over 124 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .323 xwOBA over 437 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .356 xwOBA over 153 BIP — a meaningful edge for the batter.
  7. 7 JP Jeremy Peña RHB .326
    Pitch-by-pitch projection vs. Jeremy Peña
    • Slider (32% usage) projects to .286 xwOBA over 316 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .332 xwOBA over 344 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .340 xwOBA over 139 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .385 xwOBA over 378 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .297 xwOBA over 147 BIP — a roughly even matchup.
  8. 8 YD Yainer Diaz RHB .328
    Pitch-by-pitch projection vs. Yainer Diaz
    • Slider (32% usage) projects to .331 xwOBA over 293 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .327 xwOBA over 273 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .332 xwOBA over 117 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .325 xwOBA over 322 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .314 xwOBA over 178 BIP — a roughly even matchup.
  9. 9 TT Taylor Trammell LHB .298
    Pitch-by-pitch projection vs. Taylor Trammell
    • Slider (32% usage) projects to .282 xwOBA over 43 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .298 xwOBA over 41 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .337 xwOBA over 27 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .293 xwOBA over 162 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .275 xwOBA over 58 BIP — a clear edge for the pitcher.
Full pitch-by-pitch breakdown, with pitch-zone heatmaps →

No meeting currently scheduled — this is a durable season matchup read.