Giants vs Diamondbacks Prediction, Odds & Best Bets: Welcome To The Willy Adames Show

We've got ourselves a solid pitching matchup between Webb and Nelson tonight, but it'll be Adames who breaks through.

Last Updated: June 30, 2025 3:39 PM EDT • 3 minute read

Pictured: Willy Adames - who's highlighted in our best Giants vs. Diamondbacks predictions - hits an RBI sac fly. Photo by Sergio Estrada via Imagn Images.

Ace Logan Webb brings his electric stuff to Chase Field (9:40 p.m. ET on MLB Network) to take on the Arizona Diamondbacks tonight, but I'm highlighting his offense and Willy Adames as our best Giants vs. Diamondbacks prediction.

We're expecting the Giants to ultimately take home the W at -135 from our best betting sites in what should be a close game wire-to-wire.

Giants vs. Diamondbacks prediction: Giants to win (-135 via FanDuel) ⭐⭐⭐⭐
Over/Under prediction: Under 8.5 (-118 via BetMGM) ⭐⭐⭐⭐
Best player prop pick: Willy Adames Over 1.5 bases (+130 via DraftKings) ⭐⭐⭐⭐⭐

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💰 Giants vs. Diamondbacks prediction & best bet

✅ Best bet: Willy Adames Over 1.5 total bases (+130 via DraftKings)

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While we're expecting a low-scoring game - this matchup is highlighted in our best NRFI bets today for a reason - I do expect Adames to make an impact tonight.

Yes, it's a small sample size against Nelson, but the value is just too great to pass up as part of our best Giants vs. Diamondbacks predictions. Across his four plate appearances against Nelson, Adames is 3-for-4 with just a 14.3 whiff percentage. You can get this around +130 at almost all of our best sports betting sites, and I'd play this down to +115.

While we love Adames, the game total Under is also a fantastic play here at -118. Nelson has allowed just two earned runs across his last 15 2/3 innings, while Webb has locked up the Diamondbacks' offense across 134 plate appearances - they own just a .211 xBA against the Giants right-hander. Let's have a clean sweep here tonight.

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Written by:
Dustin Saracini

Dustin Saracini is a Senior Publishing Editor & Analyst for Sportsbook Review. Dustin has been in the industry for 11-plus years, making various stops across Canada while gaining tremendous experience within the sports and betting landscape. Dustin has hosted multiple shows during his time in the sports betting industry, discussing NBA, NFL, PGA, and MLB betting markets with top handicappers from around the country, and has appeared on CNN as a betting consultant. Dustin wagers every single day and line shops at all of the top sportsbooks (FanDuel, DraftKings, BetMGM, and Caesars). He firmly believes that discipline is the only way you can become a profitable bettor. Dustin graduated from Western University with a broadcast journalism degree/diploma in 2014. If you want to see more of his plays, make sure to follow his Twitter @DustinSaracini. Follow for picks, strategies, and more.