PITCHER MATCHUP

George Klassen vs Houston Astros

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

George Klassen's arsenal

Throws RHPvs LHH xwOBA .370vs RHH xwOBA .362Seasons 2026
Four-Seam Fastball 40%Slider 27%Changeup 19%Sinker 8%Curveball 5%

How the Houston Astros's regulars project

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

Lineup avg xwOBA .320
  1. 1 CW Christian Walker RHB .314
    Pitch-by-pitch projection vs. Christian Walker
    • Four-Seam Fastball (40% usage) projects to .339 xwOBA over 514 BIP — a roughly even matchup.
    • Slider (27% usage) projects to .279 xwOBA over 274 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .302 xwOBA over 173 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .360 xwOBA over 374 BIP — a meaningful edge for the batter.
    • Curveball (5% usage) projects to .276 xwOBA over 109 BIP — a clear edge for the pitcher.
  2. 2 YA Yordan Alvarez SH .394
    Pitch-by-pitch projection vs. Yordan Alvarez
    • Four-Seam Fastball (40% usage) projects to .425 xwOBA over 434 BIP — a meaningful edge for the batter.
    • Slider (27% usage) projects to .346 xwOBA over 191 BIP — a meaningful edge for the batter.
    • Changeup (19% usage) projects to .382 xwOBA over 161 BIP — a meaningful edge for the batter.
    • Sinker (8% usage) projects to .398 xwOBA over 235 BIP — a meaningful edge for the batter.
    • Curveball (5% usage) projects to .443 xwOBA over 95 BIP — a meaningful edge for the batter.
  3. 3 IP Isaac Paredes RHB .315
    Pitch-by-pitch projection vs. Isaac Paredes
    • Four-Seam Fastball (40% usage) projects to .347 xwOBA over 501 BIP — a meaningful edge for the batter.
    • Slider (27% usage) projects to .292 xwOBA over 232 BIP — a roughly even matchup.
    • Changeup (19% usage) projects to .284 xwOBA over 166 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .330 xwOBA over 363 BIP — a roughly even matchup.
    • Curveball (5% usage) projects to .286 xwOBA over 92 BIP — a roughly even matchup.
  4. 4 JA Jose Altuve RHB .301
    Pitch-by-pitch projection vs. Jose Altuve
    • Four-Seam Fastball (40% usage) projects to .330 xwOBA over 487 BIP — a roughly even matchup.
    • Slider (27% usage) projects to .270 xwOBA over 343 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .274 xwOBA over 173 BIP — a clear edge for the pitcher.
    • Sinker (8% usage) projects to .316 xwOBA over 358 BIP — a roughly even matchup.
    • Curveball (5% usage) projects to .316 xwOBA over 86 BIP — a roughly even matchup.
  5. 5 CS Cam Smith RHB .304
    Pitch-by-pitch projection vs. Cam Smith
    • Four-Seam Fastball (40% usage) projects to .327 xwOBA over 256 BIP — a roughly even matchup.
    • Slider (27% usage) projects to .268 xwOBA over 153 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .287 xwOBA over 101 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .342 xwOBA over 260 BIP — a meaningful edge for the batter.
    • Curveball (5% usage) projects to .315 xwOBA over 47 BIP — a roughly even matchup.
  6. 6 DV Daulton Varsho LHB .303
    Pitch-by-pitch projection vs. Daulton Varsho
    • Four-Seam Fastball (40% usage) projects to .323 xwOBA over 437 BIP — a roughly even matchup.
    • Slider (27% usage) projects to .263 xwOBA over 147 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .327 xwOBA over 153 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .287 xwOBA over 191 BIP — a roughly even matchup.
    • Curveball (5% usage) projects to .291 xwOBA over 78 BIP — a roughly even matchup.
  7. 7 JP Jeremy Peña RHB .324
    Pitch-by-pitch projection vs. Jeremy Peña
    • Four-Seam Fastball (40% usage) projects to .388 xwOBA over 378 BIP — a meaningful edge for the batter.
    • Slider (27% usage) projects to .260 xwOBA over 316 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .289 xwOBA over 147 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .324 xwOBA over 344 BIP — a roughly even matchup.
    • Curveball (5% usage) projects to .290 xwOBA over 82 BIP — a roughly even matchup.
  8. 8 YD Yainer Diaz RHB .333
    Pitch-by-pitch projection vs. Yainer Diaz
    • Four-Seam Fastball (40% usage) projects to .357 xwOBA over 322 BIP — a meaningful edge for the batter.
    • Slider (27% usage) projects to .326 xwOBA over 293 BIP — a roughly even matchup.
    • Changeup (19% usage) projects to .305 xwOBA over 178 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .346 xwOBA over 273 BIP — a meaningful edge for the batter.
    • Curveball (5% usage) projects to .272 xwOBA over 103 BIP — a clear edge for the pitcher.
  9. 9 TT Taylor Trammell LHB .294
    Pitch-by-pitch projection vs. Taylor Trammell
    • Four-Seam Fastball (40% usage) projects to .307 xwOBA over 162 BIP — a roughly even matchup.
    • Slider (27% usage) projects to .277 xwOBA over 43 BIP — a clear edge for the pitcher.
    • Changeup (19% usage) projects to .286 xwOBA over 58 BIP — a roughly even matchup.
    • Sinker (8% usage) projects to .287 xwOBA over 41 BIP — a roughly even matchup.
    • Curveball (5% usage) projects to .318 xwOBA over 25 BIP — a roughly even matchup.
Full pitch-by-pitch breakdown, with pitch-zone heatmaps →

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