Comprehensive Player Prop Odds for Giants vs Padres – August 20, 2025

San Francisco Giants

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San Diego Padres

The San Diego Padres host the San Francisco Giants on August 20, 2025, in what promises to be an intriguing National League West matchup. The Padres, currently sitting at 70-56, are having a solid season and recently secured a 5-1 victory over the Giants in their last game. Meanwhile, the Giants, with a record of 61-65, are struggling and have been unable to maintain a competitive edge in the division.

In this game, the Padres are projected to start JP Sears, a left-handed pitcher ranked 188th among MLB starters, while the Giants will counter with Landen Roupp, who sits at a much more favorable 79th. Sears has had a challenging season with a 7-10 record and a 5.12 ERA, but the projections suggest he might be due for a turnaround, as his underlying metrics indicate he has been somewhat unlucky. Roupp, on the other hand, has been more effective with a 3.45 ERA and a 7-6 record, but his recent performance was less than stellar, allowing 5 earned runs in just 3 innings in his last start.

Offensively, the Padres rank 19th in MLB, with a particularly weak showing in home runs, sitting 29th overall. Conversely, the Giants’ offense ranks even lower at 26th, struggling significantly with both batting average and power. The Padres’ bullpen, ranked 1st in MLB, could play a crucial role if the game remains close, especially given the Giants’ average bullpen ranking at 19th.

With a Game Total set at 8.0 runs, the betting lines favor the Padres with a moneyline of -140, indicating a reasonable expectation for them to secure another win against a Giants team that has been unable to find its footing this season.

San Francisco Giants Insights

• Landen Roupp – Over/Under 14.5 Pitching Outs (-190/+145)
  The leading projection system (THE BAT X) expects Landen Roupp to be on a bit of a short leash today, projecting a maximum of 81 pitches.
  Explain: A pitcher who is on a pitch count is likely to be pulled from the game earlier, record fewer outs, and generate fewer strikeouts.
• Jung Hoo Lee – Over/Under 0.5 Hits (-135/+105)
  Jung Hoo Lee is penciled in 6th in the lineup today, which would be a downgrade from his 71% rate of hitting in the top-half of the lineup this year.
  Explain: The lower in the order a player bats, the fewer plate appearances he will get and the fewer opportunities he will get to hit the Over for every market. A player who hits lower in the order than he normally does may provide extra value opportunity since the market may be based on him hitting higher.
• Heliot Ramos – Over/Under 1.5 Total Bases (+110/-140)
  Heliot Ramos has a 92nd percentile opposite-field rate on his flyballs (36.5%) and has the misfortune of hitting them towards baseball’s 6th-deepest RF fences in today’s matchup.
  Explain: This player’s skill set does not match up particularly well with the park he’s in today, which may lead to worse-than-usual performance.

San Diego Padres Insights

• JP Sears – Over/Under 4.5 Strikeouts (-135/+105)
  JP Sears has relied on his slider 5.1% more often this year (38.9%) than he did last season (33.8%).
  Explain: Because sliders are one of the most effective pitches to use, a pitcher who alters his pitch mix to use more of them will often see more success as a result.
• Jose Iglesias – Over/Under 0.5 Total Bases (-180/+140)
  There has been a decrease in Jose Iglesias’s average exit velocity this season, from 85.8 mph last year to 83.2 mph now
  Explain: Hitting the ball hard increases the chances of either a home run or the ball landing in fair territory for a hit before a fielder can get to it.
• According to the leading projection system (THE BAT X), the team with the least strikeout-prone lineup on the slate today is the San Diego Padres with a 18.2% underlying K%.
  Explain: THE BAT X analyzes each player in today’s specific lineup to figure out which teams have the least inherent strikeout potential for the opposing pitcher.

Betting Trends

• Over/Under 8.0 Game Total (-110/-110)
  The San Diego Padres have hit the Game Total Under in 66 of their last 115 games (+14.70 Units / 12% ROI)
• San Francisco Giants – Over/Under 3.5 Team Total (-120/-110)
  The San Francisco Giants have hit the Team Total Under in 49 of their last 81 games (+13.40 Units / 14% ROI)
• Manny Machado – Over/Under 0.5 RBIs (+135/-180)
  Manny Machado has hit the RBIs Under in 14 of his last 15 games (+12.40 Units / 48% ROI)