Mariners vs. Astros Prediction, Odds, Probable Pitchers, Prop Bets for Sunday, Aug. 16

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The Houston Astros are starting to create a little bit of separation atop the American League West. They are now two games above the Texas Rangers and five games above the Seattle Mariners.
The Mariners took a step toward closing the gap last night, winning 10-5 in Houston, which means this week's edition of Sunday Night Baseball will decide the series, with both teams recording a win so far this weekend.
Let's dive into the odds and my best bet for this AL West rubber match.
Mariners vs. Astros Odds, Run Line, and Total
Run line
- Mariners +1.5 (-215)
- Astros -1.5 (+176)
Moneyline
- Mariners +114
- Astros -122
Total
- OVER 8 (-110)
- UNDER 8 (-110)
Mariners vs. Astros Probable Pitchers
- Seattle: Bryan Woo, RHP (8-8, 4.15 ERA)
- Houston: Hunter Brown, RHP (3-2, 3.68 ERA)
Mariners vs. Astros How to Watch
- Date: Sunday, August 16
- Time: 7:20 p.m. ET
- Venue: Daikin Park
- How to Watch (TV): NBC/Peacock
- Mariners record: 58-66
- Astros record: 63-61
Mariners vs. Astros Best MLB Prop Bet
- Cam Smith OVER 1.5 Total Bases (+170)
Cam Smith has had a great month of offensive production, sporting an OPS of 1.084 with a batting average of .368 over the past 30 days. Given the hot streak, I'm surprised the betting market has him listed at +170 to record 2+ total bases today, one of the longest odds amongst all Houston bats. I'll take the bait and bet on him to record two or more total bases.
Mariners vs. Astros Prediction and Best bet
In today's edition of Walk-Off Wagers, I broke down why I'm betting on the Astros to win the game and the series tonight:
The Mariners' offensive explosion over the past couple of days isn't enough to give me faith that they'll continue producing at that level. Even with the recent success, the Mariners are still 17th in wRC+ over the past month, well below the Astros, who have the third-best mark in the American League at 110 in that time frame.
I'll back the Astros as home favorites for today's edition of Sunday Night Baseball.
Pick: Astros -122 via FanDuel
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Originally from Nova Scotia, Iain MacMillan is a senior editor covering betting, with a focus on NFL, NHL, and golf. He hosts the Bacon Bets Podcast and has been featured on VSIN, BetQL and Monumental Sports Network. He is a member of the Metropolitan Golf Writers Association and his beloved Falcons and Maple Leafs break his heart on a yearly basis.
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