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 .375vs RHH xwOBA .306Seasons 2026–2025–2024
Slider 30%Sinker 29%Cutter 18%Four-Seam Fastball 15%Changeup 6%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 .316
  1. 1 SP Salvador Perez RHB .332
    Pitch-by-pitch projection vs. Salvador Perez
    • Slider (30% usage) projects to .302 xwOBA over 273 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .381 xwOBA over 256 BIP — a meaningful edge for the batter.
    • Cutter (18% usage) projects to .311 xwOBA over 131 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .356 xwOBA over 438 BIP — a meaningful edge for the batter.
    • Changeup (6% usage) projects to .261 xwOBA over 168 BIP — a clear edge for the pitcher.
    • Curveball (2% usage) projects to .309 xwOBA over 106 BIP — a roughly even matchup.
  2. 2 CJ Carter Jensen LHB .316
    Pitch-by-pitch projection vs. Carter Jensen
    • Slider (30% usage) projects to .290 xwOBA over 79 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .329 xwOBA over 61 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .336 xwOBA over 29 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .320 xwOBA over 130 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .313 xwOBA over 47 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .322 xwOBA over 26 BIP — a roughly even matchup.
  3. 3 JC Jac Caglianone LHB .341
    Pitch-by-pitch projection vs. Jac Caglianone
    • Slider (30% usage) projects to .370 xwOBA over 81 BIP — a meaningful edge for the batter.
    • Sinker (29% usage) projects to .322 xwOBA over 82 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .330 xwOBA over 38 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .346 xwOBA over 155 BIP — a meaningful edge for the batter.
    • Changeup (6% usage) projects to .309 xwOBA over 83 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .316 xwOBA over 42 BIP — a roughly even matchup.
  4. 4 IC Isaac Collins SH .318
    Pitch-by-pitch projection vs. Isaac Collins
    • Slider (30% usage) projects to .317 xwOBA over 59 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .316 xwOBA over 115 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .337 xwOBA over 45 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .329 xwOBA over 356 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .260 xwOBA over 92 BIP — a clear edge for the pitcher.
    • Curveball (2% usage) projects to .287 xwOBA over 42 BIP — a roughly even matchup.
  5. 5 LT Lane Thomas RHB .308
    Pitch-by-pitch projection vs. Lane Thomas
    • Slider (30% usage) projects to .282 xwOBA over 141 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .323 xwOBA over 212 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .325 xwOBA over 70 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .308 xwOBA over 288 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .319 xwOBA over 97 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .319 xwOBA over 49 BIP — a roughly even matchup.
  6. 6 MM Michael Massey LHB .309
    Pitch-by-pitch projection vs. Michael Massey
    • Slider (30% usage) projects to .306 xwOBA over 95 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .313 xwOBA over 114 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .335 xwOBA over 60 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .281 xwOBA over 323 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .292 xwOBA over 150 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .333 xwOBA over 38 BIP — a roughly even matchup.
  7. 7 NL Nick Loftin RHB .296
    Pitch-by-pitch projection vs. Nick Loftin
    • Slider (30% usage) projects to .304 xwOBA over 87 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .273 xwOBA over 109 BIP — a clear edge for the pitcher.
    • Cutter (18% usage) projects to .305 xwOBA over 51 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .314 xwOBA over 196 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .282 xwOBA over 52 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .326 xwOBA over 22 BIP — a roughly even matchup.
  8. 8 SM Starling Marte RHB .308
    Pitch-by-pitch projection vs. Starling Marte
    • Slider (30% usage) projects to .286 xwOBA over 148 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .310 xwOBA over 145 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .326 xwOBA over 58 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .321 xwOBA over 226 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .312 xwOBA over 81 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .319 xwOBA over 62 BIP — a roughly even matchup.
  9. 9 TT Tyler Tolbert RHB .316
    Pitch-by-pitch projection vs. Tyler Tolbert
    • Slider (30% usage) projects to .315 xwOBA over 13 BIP — a roughly even matchup.
    • Sinker (29% usage) projects to .301 xwOBA over 23 BIP — a roughly even matchup.
    • Cutter (18% usage) projects to .326 xwOBA over 12 BIP — a roughly even matchup.
    • Four-Seam Fastball (15% usage) projects to .339 xwOBA over 36 BIP — a roughly even matchup.
    • Changeup (6% usage) projects to .312 xwOBA over 15 BIP — a roughly even matchup.
    • Curveball (2% usage) projects to .305 xwOBA over 6 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.