PREVIEW Starts 4:10 PM ET · Fenway Park
September 12, 2026 · AL East

Kansas City Royals at Boston Red Sox

September 12, 20264:10 PM ETFenway Park
AWAY
Kansas City Royals
48-68
@
HOME
Boston Red Sox
63-51

Lineups

Lineups are usually announced ~90 minutes before first pitch. Check back soon.

Hitter season stats

Season-to-date lines for each hitter in the projected lineup, with a Marcel projection (Proj OPS). Season columns are 2026 to date; Proj is a forward-looking estimate, not a result.

AWAY · KC Projected · top 9 by AB
BATTER 2026 SEASON PROJ OPS
AVGOBPSLGOPSHRRBIK
1 Salvador Perez DH · R .215 .263 .376 .639 16 48 93 .713
2 Jac Caglianone RF · L .254 .309 .453 .762 18 45 112 .732
3 Bobby Witt Jr. SS · R .286 .356 .457 .813 13 41 74 .792
4 Carter Jensen C · L .228 .301 .415 .716 15 54 127 .751
5 Isaac Collins LF · S .238 .337 .366 .703 6 34 86 .726
6 Michael Massey 2B · L .263 .297 .426 .723 9 39 53 .711
7 Nick Loftin 3B · R .249 .332 .399 .731 5 35 38 .717
8 Kyle Isbel CF · L .243 .293 .347 .640 3 13 42 .705
9 Starling Marte RF · R .255 .311 .314 .625 1 12 37 .700
HOME · BOS Projected · top 9 by AB
BATTER 2026 SEASON PROJ OPS
AVGOBPSLGOPSHRRBIK
1 Wilyer Abreu RF · L .253 .326 .457 .783 20 59 102 .743
2 Ceddanne Rafaela CF · R .287 .328 .472 .800 15 59 93 .728
3 Jarren Duran LF · L .204 .260 .354 .614 15 58 129 .748
4 Willson Contreras 1B · R .288 .395 .540 .935 23 70 108 .734
5 Caleb Durbin 3B · R .251 .322 .408 .730 11 51 54 .733
6 Masataka Yoshida DH · L .269 .345 .395 .740 5 24 28 .719
7 Andruw Monasterio SS · R .268 .322 .460 .782 6 28 50 .715
8 Connor Wong C · R .252 .341 .377 .718 3 19 41 .708
9 Eli White RF · R .231 .283 .403 .686 5 17 31 .709

Manager comparison

AWAY · KC
Matt Quatraro
Lineup 3.7 R Bunts 2.4 R IBBs 1.8 R
HOME · BOS
Chad Tracy
Lineup 1.7 R Bunts 2.2 R IBBs 0.7 R Interim

Bullpen availability

AWAY · KC
  • Available 6
  • Limited 3
  • Rest required 0
  • Inactive 0
HOME · BOS
  • Available 3
  • Limited 4
  • Rest required 0
  • Inactive 0

Recent form

AWAY · KC
4-6 L1 -6 run diff
LWWLLLLWLW
HOME · BOS
9-1 W8 +31 run diff
WWWWWWWWLW

Pitching & bullpen preview

Probable starters and each bullpen's availability load in the sections above — the Royals and Red Sox staffs going in.

Once the game ends, a full pitching and bullpen breakdown appears here: starter lines, the relief sequence and each arm's role, pitch counts, and where the game turned.

Keep reading

How RunsLeft analyzes games

Standard content on this page comes from the MLB Stats API. The pitching analysis describes how the game was pitched — the starter's line, the bullpen sequence and each arm's role (opener, bulk, setup, closer), pitch counts as a fatigue signal, and the leverage context where the game turned. Reliever roles are inferred from how the manager used each arm up to that date. It describes structure and constraints; it does not grade the manager.

Read the full methodology.