Giants vs Rays Prediction, Odds, Moneyline, Spread & Over/Under for May 2

Odds updated as of 1:12 a.m.

On Saturday in MLB, the San Francisco Giants are up against the Tampa Bay Rays.

We've got you covered, in terms of the vital information regarding this game before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Giants vs Rays Game Info

• San Francisco Giants (13-19) vs. Tampa Bay Rays (19-12)
• Date: Saturday, May 2, 2026
• Time: 6:10 p.m. ET
• Venue: Tropicana Field -- St. Petersburg, Florida
• Coverage: Rays.TV and NBCS-BA

Giants vs Rays Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SF: (-116) | TB: (-102)
• Spread: SF: -1.5 (+146) | TB: +1.5 (-178)
• Total: 7.5 -- Over: (-122) | Under: (+100)

Giants vs Rays Probable Starting Pitchers

Probable Pitchers: Landen Roupp (Giants) - 5-1, 2.55 ERA vs Griffin Jax (Rays) - 1-2, 6.35 ERA

The Giants will give the nod to Landen Roupp (5-1) against the Rays and Griffin Jax (1-2). Roupp and his team have a record of 4-2-0 against the spread when he starts. Roupp's team is 1-1 this season when he starts and they're favored on the moneyline. Jax has started just one game with a set spread, which the Rays covered. The Rays have always been the moneyline underdog when Jax starts this season.

Giants vs Rays Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Rays win (55%)

Giants vs Rays Moneyline

• Tampa Bay is the underdog, -102 on the moneyline, while San Francisco is a -116 favorite despite being on the road.

Giants vs Rays Spread

• The Rays are hosting the Giants, and are +1.5 on the runline. The Rays are +146 to cover the spread, and the Giants are -178.

Giants vs Rays Over/Under

• An over/under of 7.5 has been set for Giants-Rays on May 2, with the over being -122 and the under +100.

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

Giants vs Rays Betting Trends

• The Giants have come away with five wins in the 10 contests they have been listed as the favorites in this season.
• This year San Francisco has won three of seven games when listed as at least -116 on the moneyline.
• The Giants and their opponents have gone over the total this season in 14 of their 32 opportunities.
• The Giants have posted a record of 13-19-0 against the spread this season.
• The Rays have gone 8-6 in games they were the underdog on the moneyline (winning 57.1% of those games).
• When playing as a moneyline underdog with odds of -102 or longer, Tampa Bay has a 6-3 record (winning 66.7% of its games).
• The Rays have played in 30 games with an over/under set, and have combined with opponents to go over the total 17 times (17-13-0).
• The Rays have a 19-11-0 record against the spread this season (covering 63.3% of the time).

Giants Player Leaders

• Luis Arraez has an OPS of .700, fueled by an OBP of .331 and a team-best slugging percentage of .369 this season. He has a .303 batting average.
• Among qualified hitters in MLB, his batting average ranks 22nd, his on-base percentage ranks 90th, and he is 122nd in slugging.
• Arraez has hit safely in two straight games. In his last five games he is hitting .200 with two doubles and three RBIs.
• Jung Hoo Lee is hitting .298 with eight doubles, a triple, two home runs and nine walks, while slugging .439 with an on-base percentage of .344.
• Among all qualified hitters, he ranks 28th in batting average, 74th in on-base percentage and 65th in slugging percentage.
• Lee heads into this matchup looking to extend his two-game hit streak. In his last five games he is batting .350 with a triple, a walk and an RBI.
• Casey Schmitt has 29 hits and an OBP of .352, both of which lead the Giants this season.
• Schmitt enters this matchup with three games in a row with at least one hit. During his last five outings he is hitting .333 with a triple, a home run, a walk and four RBIs.
• Matt Chapman has been key for San Francisco with 32 hits, an OBP of .343 plus a slugging percentage of .352.

Rays Player Leaders

• Yandy Diaz has accumulated an on-base percentage of .422 and a slugging percentage of .504. Both lead the Rays. He's batting .333.
• He ranks fourth in batting average, eighth in on-base percentage and 30th in slugging percentage among all qualifying hitters in MLB.
• Diaz enters this matchup on a three-game hitting streak. In his last five games he is batting .313 with two home runs, three walks and three RBIs.
• Junior Caminero's 31 hits lead his team. He has a batting average of .258 while slugging .508 with an on-base percentage of .328.
• His batting average ranks 71st among all qualified players, his on-base percentage is 97th, and he is 28th in slugging.
• Jonathan Aranda has four doubles, seven home runs and 19 walks while batting .218.
• Chandler Simpson has a double, two triples and seven walks while hitting .314.

Giants vs Rays Head to Head

• 5/1/2026: 3-0 TB (Favorite: Rays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -134, Underdog Moneyline: +116)
• 8/17/2025: 7-1 SF (Favorite: Giants, Spread: -1.5, Total: 7, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 8/16/2025: 2-1 TB (Favorite: Rays, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/15/2025: 7-6 TB (Favorite: Giants, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/14/2024: 9-4 TB (Favorite: Giants, Spread: -1.5, Total: 8, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 4/13/2024: 11-2 SF (Favorite: Rays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 4/12/2024: 2-1 TB (Favorite: Rays, Spread: -1.5, Total: 8.5, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 8/16/2023: 6-1 TB (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 8/15/2023: 7-0 SF (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/14/2023: 10-2 TB (Favorite: Rays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -134, Underdog Moneyline: +114)

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