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 .377vs RHH xwOBA .306Seasons 2026–2025–2024
Slider 31%Sinker 29%Cutter 17%Four-Seam Fastball 15%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 .318
  1. 1 CW Christian Walker RHB .311
    Pitch-by-pitch projection vs. Christian Walker
    • Slider (31% usage) projects to .275 xwOBA over 262 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .340 xwOBA over 344 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .321 xwOBA over 117 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .315 xwOBA over 465 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .314 xwOBA over 165 BIP — a roughly even matchup.
  2. 2 YA Yordan Alvarez SH .393
    Pitch-by-pitch projection vs. Yordan Alvarez
    • Slider (31% usage) projects to .368 xwOBA over 177 BIP — a meaningful edge for the batter.
    • Sinker (29% usage) projects to .409 xwOBA over 212 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .388 xwOBA over 118 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (15% usage) projects to .419 xwOBA over 399 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .393 xwOBA over 139 BIP — a meaningful edge for the batter.
  3. 3 IP Isaac Paredes RHB .314
    Pitch-by-pitch projection vs. Isaac Paredes
    • Slider (31% usage) projects to .282 xwOBA over 218 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .326 xwOBA over 326 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .336 xwOBA over 112 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .344 xwOBA over 460 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .270 xwOBA over 155 BIP — a clear edge for the pitcher.
  4. 4 CS Cam Smith RHB .317
    Pitch-by-pitch projection vs. Cam Smith
    • Slider (31% usage) projects to .297 xwOBA over 142 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .309 xwOBA over 232 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .343 xwOBA over 65 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (15% usage) projects to .341 xwOBA over 227 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .328 xwOBA over 84 BIP — a roughly even matchup.
  5. 5 JA Jose Altuve RHB .298
    Pitch-by-pitch projection vs. Jose Altuve
    • Slider (31% usage) projects to .266 xwOBA over 320 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .308 xwOBA over 327 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .328 xwOBA over 139 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .318 xwOBA over 447 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .274 xwOBA over 165 BIP — a clear edge for the pitcher.
  6. 6 DV Daulton Varsho LHB .295
    Pitch-by-pitch projection vs. Daulton Varsho
    • Slider (31% usage) projects to .266 xwOBA over 141 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .294 xwOBA over 172 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .306 xwOBA over 108 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .321 xwOBA over 409 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .366 xwOBA over 139 BIP — a meaningful edge for the batter.
  7. 7 JP Jeremy Peña RHB .320
    Pitch-by-pitch projection vs. Jeremy Peña
    • Slider (31% usage) projects to .282 xwOBA over 290 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .330 xwOBA over 322 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .326 xwOBA over 131 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .377 xwOBA over 340 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .311 xwOBA over 129 BIP — a roughly even matchup.
  8. 8 YD Yainer Diaz RHB .328
    Pitch-by-pitch projection vs. Yainer Diaz
    • Slider (31% usage) projects to .320 xwOBA over 276 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .334 xwOBA over 255 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .333 xwOBA over 108 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .330 xwOBA over 304 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .320 xwOBA over 161 BIP — a roughly even matchup.
  9. 9 CV Christian Vázquez RHB .285
    Pitch-by-pitch projection vs. Christian Vázquez
    • Slider (31% usage) projects to .273 xwOBA over 105 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .295 xwOBA over 129 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .303 xwOBA over 62 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .276 xwOBA over 267 BIP — a clear edge for the pitcher.
    • Changeup (5% usage) projects to .267 xwOBA over 53 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.