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Diamondbacks vs Giants Prediction, Odds, Probable Pitchers, Expert MLB Picks – 5/27

Diamondbacks vs Giants Prediction, Odds, Probable Pitchers, Expert MLB Picks – 5/27 article feature image
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Isaiah J. Downing-Imagn Images. Pictured: Diamondbacks SP Michael Soroka

The San Francisco Giants (22-33) host the Arizona Diamondbacks (30-24) on May 27, 2026. First pitch from Oracle Park is scheduled for 3:45 p.m. ET. The game will be broadcast on NBCS-BA.

The Diamondbacks are favored by -118 on the moneyline and by -1.5 (+142) on the run line. The Giants are +100 on the moneyline and +1.5 (-170) on the run line. The total is set at 7.5 runs (-112 / -108).

Find my MLB picks and Diamondbacks vs Giants prediction below, as well as probable pitchers, weather report, and more.


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Diamondbacks vs Giants Prediction and MLB Pick

  • Diamondbacks vs Giants Pick: F5 Under 4 (-125)

My Diamondbacks vs Giants best bet is Under 4 total runs in the first five innings. Make sure to find the best odds by checking our live MLB odds page.


Diamondbacks vs Giants Odds, Run Line, Over/Under

Diamondbacks Logo
Wednesday, May 27
3:45 p.m. ET
NBCS-BA
Giants Logo
Diamondbacks Odds
SpreadTotalMoneyline
-1.5
+142
7.5
-112o / -108u
-118
Giants Odds
SpreadTotalMoneyline
+1.5
-170
7.5
-112o / -108u
+100
Odds via FanDuel. Get up-to-the-minute MLB odds here.
FanDuel Logo
  • Diamondbacks vs Giants moneyline: Diamondbacks -118, Giants +100
  • Diamondbacks vs Giants over/under: 7.5 (-112 / -108)
  • Diamondbacks vs Giants spread: Diamondbacks -1.5 (+142), Giants +1.5 (-170)

Diamondbacks vs Giants Probable Pitchers

RHP Michael Soroka (ARI)StatRHP Trevor McDonald (SF)
6-2W-L2-1
1.3fWAR (FanGraphs)0.4
3.27 / 4.42ERA / xERA4.76 / 4.00
2.93 / 3.34FIP / xFIP3.43 / 2.90
18.5K-BB%18.1
41.0GB%62.5
.331BABIP.270
93Stuff+101
107Location+102

Diamondbacks vs Giants Expert MLB Pick

The Diamondbacks continue on their road trip and will square off with the Giants on Wednesday night in the last of a three-game series at Oracle Park in San Francisco.

Snakes’ right-hander Michael Soroka will take the mound for Arizona, while the Giants will trot out right-hander Trevor McDonald in a pitching matchup that I believe is pretty deceivingly strong.

Since arriving in the MLB in 2018 for the Atlanta Braves, Soroka has constantly dealt with numerous injuries that have lingered year after year. Whether it be his Achilles, shoulder, or bicep, among several other injury concerns, the 28-year-old has had a very minimal sample size on the mound.

In his first full season in 2019, Sorokoa dazzled in the Braves rotation, having finished the season with a remarkable 2.68 ERA to go along with a 1.11 WHIP.

Ever since, he has failed to repeat that high upside, largely due to his injury history, but he finally appears to have found his prior elite form, which made him one of the best young starting pitchers in the Big Leagues to start his career.

In his first season with the Diamondbacks, Soroka is fully healthy and ranks inside the top-30 in the MLB with a 3.27 ERA in 2016.

The first-year Snake has a very impressive pitching arsenal featuring a slurve, a combination of a slider and curveball, which has resulted in countless “swing-and-misses” in 2026.

Soroka’s slurve is just one of several off-speed pitches the Dbacks’ righty implements in combination with a slightly reduced 95 mph four-seam fastball, which has surprisingly not resulted in his allowing greater hard-hit rates to opposing hitters.

Like Soroka, the Giants’ 25-year-old righty Trevor McDonald really impressed me as well throughout the beginning of his career.

San Francisco's righty recorded a quality start in two of his first three outings in 2026 and has demonstrated high strikeout upside as well.

Despite getting rocked for seven earned runs by the White Sox in his last start, I think Wednesday afternoon’s NL West duel will be a prime bounce-back spot for San Francisco’s young righty.

While this pitching matchup appears far from elite on the surface, I would not be surprised if runs come at a premium across the first five innings of this matchup, which is why I will be targeting the under in that market.

Pick: F5 Under 4 (-125, BetMGM)


Diamondbacks vs Giants Weather


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About the Author

Ryan graduated from Providence College in 2016 with Bachelor Degrees in Business Economics & Mathematics. It was at Providence where Ryan really first found his passion for sports betting. For a lifelong sports fan with a knack for statistical analysis, he was instantly drawn to the fundamentals of the industry, specifically how sports betting markets functioned and fluctuated. In what primarily started as a recreational hobby, Ryan began studying the ins-and-outs of sports betting markets on a daily basis. He took to Twitter (now X), where he amassed a following for writing a sports betting blog that provided statistical analysis behind his wagers. In spite of seeking employment opportunities elsewhere post graduation, Ryan continued to follow his passion for the statistical analysis of sports betting wagers, eventually deciding to pursue a career in the sports betting industry.

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