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

Odds updated as of 5:11 p.m.

The MLB schedule on Saturday includes the San Francisco Giants taking on the Tampa Bay Rays.

All the info you need to make smart wagers on this game at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

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: (-118) | TB: (+100)
• Spread: SF: -1.5 (+146) | TB: +1.5 (-178)
• Total: 7.5 -- Over: (-108) | Under: (-112)

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

This contest's pitching matchup is set, as the Giants will send Landen Roupp (5-1) to the mound, while Griffin Jax (1-2) will take the ball for the Rays. When Roupp starts, his team is 4-2-0 against the spread this season. 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 yet to be named a 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 (55.8%)

Giants vs Rays Moneyline

• The Giants vs Rays moneyline has San Francisco as a -118 favorite, while Tampa Bay is a +100 underdog at home.

Giants vs Rays Spread

• The Giants are at the Rays and are favored by 1.5 runs (+146 to cover) on the runline. Tampa Bay is -178 to cover.

Giants vs Rays Over/Under

• The over/under for Giants-Rays on May 2 is 7.5. The over is -108, and the under is -112.

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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 season San Francisco has come away with a win three times in six chances when named as a favorite of at least -118 on the moneyline.
• Contests with the Giants have gone over the total set by oddsmakers in 14 of 32 chances this season.
• The Giants are 13-19-0 against the spread in their 32 games with a line set by sportsbooks this season.
• The Rays have been the underdog on the moneyline 14 total times this season. They've gone 8-6 in those games.
• Tampa Bay is 6-3 (winning 66.7% of its games) when it has played as a moneyline underdog of +100 or longer.
• 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 covered 63.3% of their games this season, going 19-11-0 against the spread.

Giants Player Leaders

• Luis Arraez leads San Francisco with a slugging percentage of .369, fueled by six extra-base hits. He has a .303 batting average and an on-base percentage of .331.
• Among qualified hitters in MLB, he is 22nd in batting average, 92nd in on-base percentage, and 123rd in slugging.
• Arraez will look for his third straight game with a hit in this contest. In his last five games he is hitting .200 with two doubles and three RBIs.
• Jung Hoo Lee has eight doubles, a triple, two home runs and nine walks. He's batting .298 and slugging .439 with an on-base percentage of .344.
• He is 28th in batting average, 74th in on-base percentage and 65th in slugging in MLB.
• Lee has picked up a hit in two games in a row. During his last five outings 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 has recorded a hit in three games in a row. In his last five games he is hitting .333 with a triple, a home run, a walk and four RBIs.
• Matt Chapman has one home run, 12 RBI and a batting average of .262 this season.

Rays Player Leaders

• Yandy Diaz has a .422 on-base percentage and a .504 slugging percentage, both team-high numbers for the Rays. He's batting .333.
• Including all the qualified hitters in the majors, he ranks fourth in batting average, eighth in on-base percentage and 32nd in slugging percentage.
• Diaz takes a three-game hitting streak into this game. During his last five outings he is batting .313 with two home runs, three walks and three RBIs.
• Junior Caminero leads his team with 31 hits. He has a batting average of .258 while slugging .508 with an on-base percentage of .328.
• He is 73rd in batting average, 96th in on-base percentage and 30th in slugging percentage in the big leagues.
• Jonathan Aranda is batting .218 with four doubles, seven home runs and 19 walks.
• Chandler Simpson has a double, two triples and seven walks while batting .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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