PITCHER MATCHUP

Kumar Rocker vs Arizona Diamondbacks

How the Arizona Diamondbacks'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 .367vs RHH xwOBA .306Seasons 2026–2025–2024
Slider 32%Sinker 29%Cutter 17%Four-Seam Fastball 15%Changeup 5%Curveball 2%

How the Arizona Diamondbacks's regulars project

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

Lineup avg xwOBA .322
  1. 1 CC Corbin Carroll LHB .338
    Pitch-by-pitch projection vs. Corbin Carroll
    • Slider (32% usage) projects to .338 xwOBA over 276 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .324 xwOBA over 297 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .344 xwOBA over 114 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (15% usage) projects to .357 xwOBA over 634 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .340 xwOBA over 192 BIP — a meaningful edge for the batter.
  2. 2 GP Geraldo Perdomo SH .322
    Pitch-by-pitch projection vs. Geraldo Perdomo
    • Slider (32% usage) projects to .305 xwOBA over 199 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .330 xwOBA over 248 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .324 xwOBA over 127 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .355 xwOBA over 586 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .280 xwOBA over 220 BIP — a roughly even matchup.
  3. 3 KM Ketel Marte SH .347
    Pitch-by-pitch projection vs. Ketel Marte
    • Slider (32% usage) projects to .297 xwOBA over 191 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .388 xwOBA over 195 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .349 xwOBA over 128 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (15% usage) projects to .376 xwOBA over 520 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .334 xwOBA over 297 BIP — a roughly even matchup.
  4. 4 NA Nolan Arenado RHB .307
    Pitch-by-pitch projection vs. Nolan Arenado
    • Slider (32% usage) projects to .277 xwOBA over 267 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .328 xwOBA over 290 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .320 xwOBA over 94 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .325 xwOBA over 452 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .272 xwOBA over 142 BIP — a clear edge for the pitcher.
  5. 5 IV Ildemaro Vargas SH .300
    Pitch-by-pitch projection vs. Ildemaro Vargas
    • Slider (32% usage) projects to .274 xwOBA over 96 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .320 xwOBA over 128 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .312 xwOBA over 51 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .311 xwOBA over 302 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .280 xwOBA over 141 BIP — a roughly even matchup.
  6. 6 GM Gabriel Moreno RHB .340
    Pitch-by-pitch projection vs. Gabriel Moreno
    • Slider (32% usage) projects to .304 xwOBA over 159 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .378 xwOBA over 226 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .336 xwOBA over 63 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .352 xwOBA over 332 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .323 xwOBA over 103 BIP — a roughly even matchup.
  7. 7 TT Tim Tawa RHB .307
    Pitch-by-pitch projection vs. Tim Tawa
    • Slider (32% usage) projects to .280 xwOBA over 87 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .346 xwOBA over 99 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .312 xwOBA over 42 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .279 xwOBA over 126 BIP — a clear edge for the pitcher.
    • Changeup (5% usage) projects to .320 xwOBA over 42 BIP — a roughly even matchup.
  8. 8 RW Ryan Waldschmidt RHB .322
    Pitch-by-pitch projection vs. Ryan Waldschmidt
    • Slider (32% usage) projects to .331 xwOBA over 36 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .317 xwOBA over 48 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .312 xwOBA over 22 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .329 xwOBA over 58 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .295 xwOBA over 28 BIP — a roughly even matchup.
  9. 9 LN Lars Nootbaar LHB .316
    Pitch-by-pitch projection vs. Lars Nootbaar
    • Slider (32% usage) projects to .268 xwOBA over 157 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .327 xwOBA over 244 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .343 xwOBA over 84 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (15% usage) projects to .367 xwOBA over 405 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .305 xwOBA over 139 BIP — a roughly even matchup.
Full pitch-by-pitch breakdown, with pitch-zone heatmaps →

Next scheduled meeting: 2026-09-12 game page →