PITCHER MATCHUP

Kumar Rocker vs Kansas City Royals

How the Kansas City Royals'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 .364vs RHH xwOBA .309Seasons 2026–2025–2024
Slider 32%Sinker 29%Cutter 17%Four-Seam Fastball 16%Changeup 5%Curveball 2%

How the Kansas City Royals's regulars project

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

Lineup avg xwOBA .323
  1. 1 SP Salvador Perez RHB .331
    Pitch-by-pitch projection vs. Salvador Perez
    • Slider (32% usage) projects to .292 xwOBA over 294 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .380 xwOBA over 272 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .304 xwOBA over 150 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .368 xwOBA over 476 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .262 xwOBA over 181 BIP — a clear edge for the pitcher.
  2. 2 BW Bobby Witt Jr. RHB .362
    Pitch-by-pitch projection vs. Bobby Witt Jr.
    • Slider (32% usage) projects to .334 xwOBA over 326 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .378 xwOBA over 325 BIP — a meaningful edge for the batter.
    • Cutter (17% usage) projects to .376 xwOBA over 191 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .377 xwOBA over 503 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .358 xwOBA over 200 BIP — a meaningful edge for the batter.
  3. 3 CJ Carter Jensen LHB .328
    Pitch-by-pitch projection vs. Carter Jensen
    • Slider (32% usage) projects to .315 xwOBA over 95 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .332 xwOBA over 84 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .348 xwOBA over 42 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .320 xwOBA over 173 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .346 xwOBA over 64 BIP — a meaningful edge for the batter.
  4. 4 JC Jac Caglianone LHB .353
    Pitch-by-pitch projection vs. Jac Caglianone
    • Slider (32% usage) projects to .380 xwOBA over 97 BIP — a meaningful edge for the batter.
    • Sinker (29% usage) projects to .336 xwOBA over 99 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .342 xwOBA over 51 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .352 xwOBA over 184 BIP — a meaningful edge for the batter.
    • Changeup (5% usage) projects to .321 xwOBA over 96 BIP — a roughly even matchup.
  5. 5 IC Isaac Collins SH .314
    Pitch-by-pitch projection vs. Isaac Collins
    • Slider (32% usage) projects to .298 xwOBA over 74 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .320 xwOBA over 124 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .328 xwOBA over 56 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .334 xwOBA over 392 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .262 xwOBA over 116 BIP — a clear edge for the pitcher.
  6. 6 VP Vinnie Pasquantino LHB .320
    Pitch-by-pitch projection vs. Vinnie Pasquantino
    • Slider (32% usage) projects to .305 xwOBA over 163 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .331 xwOBA over 238 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .311 xwOBA over 130 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .336 xwOBA over 582 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .330 xwOBA over 214 BIP — a roughly even matchup.
  7. 7 MM Michael Massey LHB .325
    Pitch-by-pitch projection vs. Michael Massey
    • Slider (32% usage) projects to .321 xwOBA over 105 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .327 xwOBA over 128 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .368 xwOBA over 72 BIP — a meaningful edge for the batter.
    • Four-Seam Fastball (16% usage) projects to .291 xwOBA over 362 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .292 xwOBA over 165 BIP — a roughly even matchup.
  8. 8 NL Nick Loftin RHB .291
    Pitch-by-pitch projection vs. Nick Loftin
    • Slider (32% usage) projects to .286 xwOBA over 102 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .275 xwOBA over 134 BIP — a clear edge for the pitcher.
    • Cutter (17% usage) projects to .309 xwOBA over 61 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .318 xwOBA over 236 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .273 xwOBA over 63 BIP — a clear edge for the pitcher.
  9. 9 KI Kyle Isbel LHB .285
    Pitch-by-pitch projection vs. Kyle Isbel
    • Slider (32% usage) projects to .272 xwOBA over 112 BIP — a clear edge for the pitcher.
    • Sinker (29% usage) projects to .291 xwOBA over 155 BIP — a roughly even matchup.
    • Cutter (17% usage) projects to .296 xwOBA over 92 BIP — a roughly even matchup.
    • Four-Seam Fastball (16% usage) projects to .294 xwOBA over 356 BIP — a roughly even matchup.
    • Changeup (5% usage) projects to .270 xwOBA over 142 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.