PREVIEW Starts 9:40 PM ET · Chase Field
August 31, 2026 · NL West

Philadelphia Phillies at Arizona Diamondbacks

August 31, 20269:40 PM ETChase Field
AWAY
Philadelphia Phillies
17-22
@
HOME
Arizona Diamondbacks
17-19

Lineups

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

Manager comparison

Both managers grade C- / C- entering this matchup.

AWAY · PHI
Don Mattingly
C- Lineup 2.2 R Bunts 0.4 R IBBs 0.7 R Interim
HOME · AZ
Torey Lovullo
C- Lineup 2.0 R Bunts 2.1 R IBBs 0.6 R

Bullpen availability

AWAY · PHI
  • Available 6
  • Limited 0
  • Rest required 2
  • Inactive 0
HOME · AZ
  • Available 6
  • Limited 1
  • Rest required 0
  • Inactive 0

Recent form

AWAY · PHI
7-3 L2 +3 run diff
LLWWWWLWWW
HOME · AZ
3-7 L2 -15 run diff
LLWLLLLWLW

Season series: 1-2 with PHI listed first across 3 prior meetings.

Tactical preview

Don Mattingly (C-) faces Torey Lovullo (C-). Lineup decisions are the largest single category of cost in the RunsLeft model.

AWAY · PHI
C-
Lineup cost 2.2 R · Bunt cost 0.4 R · IBB cost 0.7 R
HOME · AZ
C-
Lineup cost 2.0 R · Bunt cost 2.1 R · IBB cost 0.6 R

Lineups not yet announced. They typically post ~90 minutes before first pitch.

Bullpen availability for both teams is in the section above. Full tactical analysis (manager cost, player execution, counterfactual outcome) will appear here after the game ends.

Keep reading

How RunsLeft analyzes games

Standard content on this page comes from the MLB Stats API. Tactical analysis comes from a per-game Monte Carlo: 10,000 simulated games against the opposing starter's ERA, both for the actual lineup the manager wrote and for the optimal arrangement of those nine players. The three numbers — manager cost, player execution, game variance — separate which part of the result was the lineup, the players, or the dice.

Read the full methodology.