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 .380Seasons 2026
Four-Seam Fastball 39%Changeup 26%Slider 19%Sinker 10%Curveball 7%

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 .324
  1. 1 YA Yordan Alvarez SH .406
    Pitch-by-pitch projection vs. Yordan Alvarez
    • Four-Seam Fastball (39% usage) projects to .423 xwOBA over 391 BIP — a meaningful edge for the batter.
    • Changeup (26% usage) projects to .406 xwOBA over 135 BIP — a meaningful edge for the batter.
    • Slider (19% usage) projects to .361 xwOBA over 176 BIP — a meaningful edge for the batter.
    • Sinker (10% usage) projects to .399 xwOBA over 211 BIP — a meaningful edge for the batter.
    • Curveball (7% usage) projects to .443 xwOBA over 92 BIP — a meaningful edge for the batter.
  2. 2 CW Christian Walker RHB .319
    Pitch-by-pitch projection vs. Christian Walker
    • Four-Seam Fastball (39% usage) projects to .343 xwOBA over 462 BIP — a meaningful edge for the batter.
    • Changeup (26% usage) projects to .302 xwOBA over 164 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .281 xwOBA over 258 BIP — a roughly even matchup.
    • Sinker (10% usage) projects to .366 xwOBA over 340 BIP — a meaningful edge for the batter.
    • Curveball (7% usage) projects to .286 xwOBA over 106 BIP — a roughly even matchup.
  3. 3 IP Isaac Paredes RHB .309
    Pitch-by-pitch projection vs. Isaac Paredes
    • Four-Seam Fastball (39% usage) projects to .340 xwOBA over 454 BIP — a meaningful edge for the batter.
    • Changeup (26% usage) projects to .284 xwOBA over 152 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .273 xwOBA over 215 BIP — a clear edge for the pitcher.
    • Sinker (10% usage) projects to .329 xwOBA over 323 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .296 xwOBA over 89 BIP — a roughly even matchup.
  4. 4 CS Cam Smith RHB .313
    Pitch-by-pitch projection vs. Cam Smith
    • Four-Seam Fastball (39% usage) projects to .333 xwOBA over 223 BIP — a roughly even matchup.
    • Changeup (26% usage) projects to .313 xwOBA over 81 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .270 xwOBA over 138 BIP — a clear edge for the pitcher.
    • Sinker (10% usage) projects to .315 xwOBA over 229 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .319 xwOBA over 42 BIP — a roughly even matchup.
  5. 5 JA Jose Altuve RHB .304
    Pitch-by-pitch projection vs. Jose Altuve
    • Four-Seam Fastball (39% usage) projects to .335 xwOBA over 441 BIP — a roughly even matchup.
    • Changeup (26% usage) projects to .270 xwOBA over 162 BIP — a clear edge for the pitcher.
    • Slider (19% usage) projects to .274 xwOBA over 317 BIP — a clear edge for the pitcher.
    • Sinker (10% usage) projects to .328 xwOBA over 324 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .307 xwOBA over 82 BIP — a roughly even matchup.
  6. 6 DV Daulton Varsho LHB .314
    Pitch-by-pitch projection vs. Daulton Varsho
    • Four-Seam Fastball (39% usage) projects to .331 xwOBA over 401 BIP — a roughly even matchup.
    • Changeup (26% usage) projects to .337 xwOBA over 137 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .262 xwOBA over 139 BIP — a clear edge for the pitcher.
    • Sinker (10% usage) projects to .294 xwOBA over 170 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .296 xwOBA over 71 BIP — a roughly even matchup.
  7. 7 JP Jeremy Peña RHB .326
    Pitch-by-pitch projection vs. Jeremy Peña
    • Four-Seam Fastball (39% usage) projects to .379 xwOBA over 337 BIP — a meaningful edge for the batter.
    • Changeup (26% usage) projects to .306 xwOBA over 128 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .248 xwOBA over 287 BIP — a clear edge for the pitcher.
    • Sinker (10% usage) projects to .323 xwOBA over 320 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .315 xwOBA over 70 BIP — a roughly even matchup.
  8. 8 YD Yainer Diaz RHB .336
    Pitch-by-pitch projection vs. Yainer Diaz
    • Four-Seam Fastball (39% usage) projects to .372 xwOBA over 299 BIP — a meaningful edge for the batter.
    • Changeup (26% usage) projects to .312 xwOBA over 160 BIP — a roughly even matchup.
    • Slider (19% usage) projects to .315 xwOBA over 269 BIP — a roughly even matchup.
    • Sinker (10% usage) projects to .346 xwOBA over 255 BIP — a meaningful edge for the batter.
    • Curveball (7% usage) projects to .270 xwOBA over 99 BIP — a clear edge for the pitcher.
  9. 9 CV Christian Vázquez RHB .287
    Pitch-by-pitch projection vs. Christian Vázquez
    • Four-Seam Fastball (39% usage) projects to .301 xwOBA over 264 BIP — a roughly even matchup.
    • Changeup (26% usage) projects to .266 xwOBA over 51 BIP — a clear edge for the pitcher.
    • Slider (19% usage) projects to .281 xwOBA over 105 BIP — a roughly even matchup.
    • Sinker (10% usage) projects to .280 xwOBA over 128 BIP — a roughly even matchup.
    • Curveball (7% usage) projects to .307 xwOBA over 38 BIP — a roughly even matchup.
Full pitch-by-pitch breakdown, with pitch-zone heatmaps →

Next scheduled meeting: 2026-08-18 game page →