Giants vs Pirates Prediction, Odds, Moneyline, Spread & Over/Under for May 8

Odds updated as of 10:11 p.m.

The San Francisco Giants are among the MLB teams busy on Friday, versus the Pittsburgh Pirates.

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

Giants vs Pirates Game Info

• San Francisco Giants (14-23) vs. Pittsburgh Pirates (21-17)
• Date: Friday, May 8, 2026
• Time: 10:15 p.m. ET
• Venue: Oracle Park -- San Francisco, California
• Coverage: NBCS-BA and SportsNet PT

Giants vs Pirates Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SF: (-108) | PIT: (-108)
• Spread: SF: +1.5 (-192) | PIT: -1.5 (+158)
• Total: 7.5 -- Over: (-115) | Under: (-105)

Giants vs Pirates Probable Starting Pitchers

Probable Pitchers: Robbie Ray (Giants) - 2-4, 2.95 ERA vs Carmen Mlodzinski (Pirates) - 2-2, 4.76 ERA

This contest's pitching matchup is set, as the Giants will send Robbie Ray (2-4) to the mound, while Carmen Mlodzinski (2-2) will get the nod for the Pirates. Ray's team is 3-4-0 against the spread this season in his starts. Ray's team is 1-1 this season when he starts and they're favored on the moneyline. The Pirates have gone 4-2-0 against the spread when Mlodzinski starts. The Pirates have been the underdog on the moneyline in four of Mlodzinski's starts this season, and they went 2-2 in those games.

Giants vs Pirates Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Pirates win (52.9%)

Giants vs Pirates Moneyline

• San Francisco is the favorite, -108 on the moneyline, while Pittsburgh is a -108 underdog on the road.

Giants vs Pirates Spread

Giants vs Pirates Over/Under

• The over/under for the Giants versus Pirates game on May 8 has been set at 7.5, with -115 odds on the over and -105 odds on the under.

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Giants vs Pirates Betting Trends

• The Giants have been chosen as favorites in 12 games this year and have walked away with the win five times (41.7%) in those games.
• This season San Francisco has been victorious five times in 12 chances when named as a favorite of at least -108 on the moneyline.
• The Giants and their opponents have hit the over in 15 of their 37 games with a total set by oddsmakers this season.
• The Giants have an against the spread record of 15-22-0 in 37 games with a line this season.
• The Pirates have been the underdog on the moneyline 15 total times this season. They've gone 6-9 in those games.
• Pittsburgh has a 6-9 record (winning 40% of its games) when it has played as a moneyline underdog of -108 or longer.
• The Pirates have played in 37 games with a set over/under, and have combined with their opponents to go over the total 19 times (19-17-1).
• The Pirates have covered 51.4% of their games this season, going 19-18-0 ATS.

Giants Player Leaders

• Luis Arraez has an OPS of .739, fueled by an OBP of .340 and a team-best slugging percentage of .398 this season. He has a .316 batting average.
• Among the qualified hitters in MLB, his batting average ranks 15th, his on-base percentage ranks 79th, and he is 90th in slugging.
• Casey Schmitt leads the Giants in OBP (.344) and total hits (34) this season. He's batting .296 while slugging .539.
• Among qualifying batters, he is 30th in batting average, 70th in on-base percentage and 21st in slugging percentage.
• Jung Hoo Lee has 35 hits this season and has a slash line of .263/.310/.383.
• Matt Chapman has been key for San Francisco with 32 hits, an OBP of .309 plus a slugging percentage of .314.

Pirates Player Leaders

• Brandon Lowe leads the Pirates with 33 hits. He's batting .266 and slugging .573 with an on-base percentage of .368.
• Including all the qualified hitters in the majors, he is 59th in batting average, 43rd in on-base percentage and 10th in slugging percentage.
• Bryan Reynolds paces his team with a .399 OBP. He has a batting average of .254 while slugging .410.
• He is currently 78th in batting average, 12th in on-base percentage and 77th in slugging percentage among all qualifying hitters.
• Oneil Cruz is hitting .245 with six doubles, nine home runs and 12 walks.
• Ryan O'Hearn's .446 slugging percentage paces his team.

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