MLB has 5 matches on Thursday, September 17. 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 |
|---|---|---|---|---|
| 00:05 | Texas Rangers vs Boston Red Sox | 1.86 | 1.93 | 51.0% / 49.0% |
| 00:11 | Houston Astros vs Kansas City Royals | 1.68 | 2.18 | 56.6% / 43.4% |
| 00:41 | Colorado Rockies vs San Diego Padres | 2.39 | 1.58 | 39.8% / 60.2% |
| 01:39 | Los Angeles Angels vs Seattle Mariners | 2.11 | 1.72 | 45.0% / 55.0% |
| 01:41 | Arizona Diamondbacks vs Miami Marlins | 1.73 | 2.11 | 54.9% / 45.1% |
Odds are decimal, averaged across 9 books (GTbets, BetOnline.ag, Unibet (FR), Betclic (FR), 888sport, 1xBet). "Implied" strips the bookmaker margin so the numbers add up to 100%.
Match by match
Texas Rangers vs Boston Red Sox
00:05 UTC
The market can barely separate them — 51.0% against 49.0%. Prices come from 9 books, and they differ by 13.3% on the widest side.
Houston Astros vs Kansas City Royals
00:11 UTC
The market leans Houston Astros at 56.6%. Prices come from 9 books, and they differ by 15.0% on the widest side.
Colorado Rockies vs San Diego Padres
00:41 UTC
The market leans San Diego Padres at 60.2%. Prices come from 9 books, and they differ by 13.6% on the widest side.
Los Angeles Angels vs Seattle Mariners
01:39 UTC
The market leans Seattle Mariners at 55.0%. Prices come from 9 books, and they differ by 12.8% on the widest side.
Arizona Diamondbacks vs Miami Marlins
01:41 UTC
The market leans Arizona Diamondbacks at 54.9%. Prices come from 9 books, and they differ by 12.8% on the widest side.
What the market is saying
- Closest on paper — Texas Rangers vs Boston Red Sox: 51.0% vs 49.0%.
- Most one-sided — Colorado Rockies vs San Diego Padres: the market gives San Diego Padres 60.2%.
- Where books disagree most — Houston Astros vs Kansas City Royals: 15.0% between the best and worst price.
- Average bookmaker margin — 5.4% across the slate.
Reading the slate
The Rangers-Red Sox matchup emerges as the tightest contest on the slate, with the market pricing both teams at essentially even money—51% to 49%. This is the closest margin across the five games, suggesting the strongest consensus that either team could prevail. By contrast, the Padres command the most decisive pricing at 60.2% to the Rockies' 39.8%, a gap of more than 20 percentage points that reflects a clear market lean toward the visitors.
Bookmaker consensus appears relatively tight across all matchups, with spreads ranging from 12.8% to 15.0% across the nine books sampled. The Houston-Kansas City game shows the largest disagreement among oddsmakers at 15.0%, while the Angels-Mariners and Diamondbacks-Marlins contests show the most uniform pricing at 12.8%. The Rangers-Red Sox, despite being the closest in terms of win probability, sits in the middle of this range at 13.3%, which is consistent with how volatile pricing can be when teams are genuinely even.
The Astros sit as moderate favorites at 56.6%, a noticeably shorter price than their spread might suggest, while the Angels are given just 45% implied probability despite playing at home. These gaps underscore where the market sees genuine competitive advantages: the Astros' 13-point edge over Kansas City is more pronounced than Houston's raw win probability might initially indicate.
Prices captured 2026-09-16 00:00 UTC. Odds move.