MLB has 3 matches on Tuesday, September 15. Below is the full slate with bookmaker prices and the probabilities those prices imply once the margin is removed.
Fixtures and odds
| UTC | Match | Home | Away | Implied |
|---|---|---|---|---|
| 00:41 | Colorado Rockies vs San Diego Padres | 2.47 | 1.55 | 38.6% / 61.4% |
| 01:39 | Los Angeles Angels vs Seattle Mariners | 1.99 | 1.82 | 47.7% / 52.3% |
| 01:41 | Arizona Diamondbacks vs Miami Marlins | 1.73 | 2.12 | 55.1% / 44.9% |
Odds are decimal, averaged across 16 books (BetOnline.ag, GTbets, 888sport, Unibet (FR), Betclic (FR), Winamax (DE)). "Implied" strips the bookmaker margin so the numbers add up to 100%.
Match by match
Colorado Rockies vs San Diego Padres
00:41 UTC · Coors Field, Denver · Season record: Colorado Rockies 55-94 / San Diego Padres 80-68
The market leans San Diego Padres at 61.4%. Prices come from 15 books, and they differ by 10.9% on the widest side.
Los Angeles Angels vs Seattle Mariners
01:39 UTC · Angel Stadium, Anaheim · Season record: Los Angeles Angels 56-93 / Seattle Mariners 70-80
The market can barely separate them — 47.7% against 52.3%. Prices come from 15 books, and they differ by 14.0% on the widest side.
Arizona Diamondbacks vs Miami Marlins
01:41 UTC · Chase Field, Phoenix · Season record: Arizona Diamondbacks 79-71 / Miami Marlins 74-76
The market leans Arizona Diamondbacks at 55.1%. Prices come from 16 books, and they differ by 10.0% on the widest side.
What the market is saying
- Closest on paper — Los Angeles Angels vs Seattle Mariners: 47.7% vs 52.3%.
- Most one-sided — Colorado Rockies vs San Diego Padres: the market gives San Diego Padres 61.4%.
- Where books disagree most — Los Angeles Angels vs Seattle Mariners: 14.0% between the best and worst price.
- Average bookmaker margin — 5.1% across the slate.
Reading the slate
The Padres at Rockies is the most lopsided matchup on the slate, with San Diego priced at better than three-to-five odds to win. The market gives Colorado only a 38.6% chance at home, a significant disadvantage despite the altitude advantage of playing in Denver. The 10.9% spread between the highest and lowest bookmaker odds suggests there is modest disagreement about this fixture, though 15 books all lean the same direction.
The Angels-Mariners game presents the closest contest of the three, with Seattle favored but only marginally. The implied probabilities sit at 47.7% and 52.3%, making this nearly a coin flip in the market's view. However, this game shows the most scatter among bookmakers, with a 14.0% book spread—the largest variance on the card. This disagreement about which side has the edge makes it worth close attention.
Arizona at home against Miami rounds out the slate as a moderate favorite situation. The Diamondbacks are priced with a 55.1% win probability, reflecting a clear but not overwhelming edge. The 10.0% book spread here is the tightest on the day, suggesting the strongest consensus among the 16 books covering this match. Of the three games, this one shows bookmakers most aligned in their assessment.
Prices captured 2026-09-14 00:00 UTC. Odds move.