Giants vs Rays Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 15

Odds updated as of 8:11 a.m.

The Friday schedule in MLB includes a matchup between the San Francisco Giants and the Tampa Bay Rays.

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Giants vs Rays Game Info

• San Francisco Giants (59-62) vs. Tampa Bay Rays (59-63)
• Date: Friday, August 15, 2025
• Time: 10:15 p.m. ET
• Venue: Oracle Park -- San Francisco, California
• Coverage: MLB Network, NBCS-BA, and FDSSUN

Giants vs Rays Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SF: (-134) | TB: (+114)
• Spread: SF: -1.5 (+155) | TB: +1.5 (-188)
• Total: 7.5 -- Over: (-122) | Under: (-100)

Giants vs Rays Probable Starting Pitchers

Probable Pitchers: Landen Roupp (Giants) - 7-6, 3.20 ERA vs Joe Boyle (Rays) - 1-2, 3.82 ERA

The Giants will look to Landen Roupp (7-6) versus the Rays and Joe Boyle (1-2). Roupp and his team are 10-10-0 ATS this season when he starts. Roupp's team is 5-2 this season when he starts and they are the moneyline favorite. When Boyle starts, the Rays are 1-3-0 against the spread. The Rays have been the moneyline underdog in four of Boyle's starts this season, and they went 1-3 in those games.

Giants vs Rays Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Giants win (54.8%)

Giants vs Rays Moneyline

• San Francisco is the favorite, -134 on the moneyline, while Tampa Bay is a +114 underdog on the road.

Giants vs Rays Spread

• The Rays are at +1.5 on the runline against the Giants. The Rays are -188 to cover the spread, and the Giants are +155.

Giants vs Rays Over/Under

• A total of 7.5 runs has been set for the Giants-Rays game on Aug. 15, with the over available at -122 and the under at -100.

Bet on San Francisco Giants vs. Tampa Bay Rays on FanDuel today!

Giants vs Rays Betting Trends

• The Giants have come away with 38 wins in the 76 contests they have been listed as the favorites in this season.
• San Francisco has a record of 30-25 in contests when oddsmakers favor them by -134 or more on the moneyline.
• The Giants and their opponents have gone over the total this season in 54 of their 121 opportunities.
• The Giants are 50-71-0 against the spread in their 121 games that had a posted line this season.
• The Rays have been the underdog on the moneyline 58 total times this season. They've gone 23-35 in those games.
• When playing as a moneyline underdog with odds of +114 or longer, Tampa Bay has gone 14-15 (48.3%).
• The Rays have played in 118 games with an over/under set, and have combined with opponents to go over the total 47 times (47-65-6).
• The Rays have covered 44.1% of their games this season, going 52-66-0 ATS.

Giants Player Leaders

• Rafael Devers has 116 hits and an OBP of .378, both of which are best among San Francisco hitters this season. He has a .256 batting average and a slugging percentage of .467.
• Among all qualified hitters in MLB, he ranks 84th in batting average, 10th in on-base percentage, and 43rd in slugging.
• Devers has recorded at least one hit in three straight games. In his last five games he is hitting .263 with two home runs, two walks and two RBIs.
• Jung Hoo Lee has 27 doubles, 10 triples, six home runs and 38 walks. He's batting .257 and slugging .407 with an on-base percentage of .322.
• He is 83rd in batting average, 92nd in on-base percentage and 96th in slugging among qualifying hitters.
• Lee heads into this matchup looking to extend his three-game hit streak. In his last five games he is batting .235 with a triple.
• Willy Adames is batting .223 with a .393 slugging percentage and 61 RBI this year.
• Heliot Ramos has an OPS of .748, fueled by an OBP of .342 and a team-best slugging percentage of .406 this season.

Rays Player Leaders

• Junior Caminero has racked up 119 hits, a team-best for the Rays. He's batting .262 and slugging .532 with an on-base percentage of .300.
• Including all qualifying players in the majors, he is 67th in batting average, 134th in on-base percentage and 10th in slugging percentage.
• Yandy Diaz leads his team with a .464 slugging percentage. He has a batting average of .280 with an on-base percentage of .343.
• He ranks 30th in batting average, 55th in on-base percentage and 44th in slugging percentage in the majors.
• Brandon Lowe is hitting .275 with 13 doubles, 24 home runs and 27 walks.
• Chandler Simpson has 10 doubles, two triples and 15 walks while batting .302.

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