DIVISION REPORT

AL West

Standings leader
Best run differential
Optimal-lineup leader

Standings

# Team W L PCT GB RD L10 Strk
1 Houston Astros 60 58 .508 - -23 7-3 L1
2 Texas Rangers 59 58 .504 0.5 -28 4-6 W4
3 Seattle Mariners 56 62 .475 4.0 -16 3-7 L3
4 Oakland Athletics 46 71 .393 13.5 -165 1-9 W1
5 Los Angeles Angels 45 72 .385 14.5 -82 3-7 L1
# Team W* L* ±W Δ Rank
1 Houston Astros 60 58 0
2 Texas Rangers 59 58 0
3 Seattle Mariners 56 62 0
4 Oakland Athletics 46 71 0
5 Los Angeles Angels 45 72 0

Optimal projects each team's remaining games as if every lineup was optimizer-recommended (snapshot, not full season replay). See methodology below.

Manager decisions across the division

All managers →
Team Manager Lineup Bunts IBBs Relievers
Athletics Mark Kotsay 98 GP 3.91 R · 0.04 R/G 2.15 R · 0.02 R/G 1.99 R · 0.02 R/G 11.04 R · 0.11 R/G
Astros Joe Espada 114 GP 4.61 R · 0.04 R/G 1.68 R · 0.01 R/G 0.49 R · 0.00 R/G 16.04 R · 0.14 R/G
Mariners Dan Wilson 104 GP 2.64 R · 0.03 R/G 1.06 R · 0.01 R/G 2.05 R · 0.02 R/G 25.91 R · 0.25 R/G
Angels Kurt Suzuki 100 GP 2.45 R · 0.02 R/G 1.91 R · 0.02 R/G 3.96 R · 0.04 R/G 21.50 R · 0.21 R/G
Rangers Skip Schumaker 117 GP 2.67 R · 0.02 R/G 2.48 R · 0.02 R/G 3.37 R · 0.03 R/G 30.19 R · 0.26 R/G

All costs are tenure-bounded, season to date, and shown as a season total plus a per-game rate (R/G). Lower is better. The categories aren't summed into a total — lineup, bunts and IBBs cover every game while reliever selection covers high-leverage spots only (7th inning+, 1–3 run game), so a single composite would mix scopes. The Relievers leaderboard shows a rolling 30-day window. Fired-manager teams get a sub-row showing the predecessor's own tenure separately.

Run differential

Recent form

RunsLeft insights · AL West

Manager

Schumaker now at 8.5R lost to lineup decisions

Skip Schumaker (TEX) has cost 8.5 runs across lineup, bunt, and IBB decisions this season — past the 5R watermark. Lineup decisions account for 2.7R, the largest single category.

Manager detail →
Manager

Kotsay now at 8.1R lost to lineup decisions

Mark Kotsay (ATH) has cost 8.1 runs across lineup, bunt, and IBB decisions this season — past the 5R watermark. Lineup decisions account for 3.9R, the largest single category.

Manager detail →
Bullpen

TEX bullpen last 7 games: Robby Ahlstrom led usage; Jacob Latz had better ERA

Texas Rangers bullpen usage, last 7 games — Robby Ahlstrom 4 apps/50p (ERA 4.01), Chase Silseth 3 apps/48p (ERA 2.89), Peyton Gray 3 apps/45p (ERA 3.38). Most-used arm: Robby Ahlstrom (4 apps, ERA 4.01). Lowest ERA among less-used arms: Ja…

Team page →
Manager

Kotsay has used 30 different lineups in 30 games

Mark Kotsay (ATH) has run 30 distinct starting lineups across 30 games this season — that's 100% turnover game-to-game. Most managers stay below 14 for the same span.

Manager detail →
Player

Lucas Spence's OPS swings .875 between lineup spots

Lucas Spence (HOU) has hit in 5 different lineup spots over 11 games this season. OPS by spot: 2nd — (1 g), 6th .000 (1 g), 7th .250 (2 g), 8th .875 (4 g), 9th .625 (3 g).

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Player

Joshua Kuroda Grauer's OPS swings 1.250 between lineup spots

Joshua Kuroda Grauer (ATH) has hit in 4 different lineup spots over 10 games this season. OPS by spot: 1st .000 (1 g), 2nd .500 (1 g), 5th .625 (4 g), 7th 1.250 (4 g).

See on team page →

Keep reading

Methodology

Counterfactual standings project each team's remaining games as if every lineup card had been the optimizer's recommendation. The math is a snapshot: winsFlip = round(seasonLineupCost / 10), added to the current win column and subtracted from the loss column.

Manager decision costs come from the same per-game decision audit used on /managers. Insights are emitted by templates under /methodology and refreshed hourly or nightly depending on the template tier.