Diamondbacks vs. Rays Prediction, MLB Picks Today: Target Zac Gallen?

Friday’s Arizona Diamondbacks vs. Tampa Bay Rays game is set for a 7:10 p.m. ET first pitch on Friday, June 26, with the Rays entering as home favorites and returning a 1.74x payout on PrizePicks Team Picks to win. 

Tonight's Dbacks vs. Rays game opens up a three-game series at Tropicana Field in St. Petersburg, Fla.

Below, we'll break down our Diamondbacks vs. Rays prediction and picks for Friday's MLB game, including a pick against the spread, over/under, and key player picks for PrizePicks.

Make your Diamondbacks vs. Rays prediction and picks on PrizePicks now!

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Diamondbacks vs. Rays Prediction, Winner, Over/Under – Friday, June 26

The Diamondbacks are sitting at 41-39 and have been stuck in the middle of a crowded NL West where everyone is chasing the MLB-best Los Angeles Dodgers (52-29). The Diamondbacks taking the division is a longshot, but they are just two games back from a Wild Card spot.

The Rays are 45-33 holding the second spot in the AL East and just two games back from the New York Yankees. With Nick Martínez on the mound, Tampa Bay Rays are looking to build on their two-game win streak at home.

Diamondbacks vs. Rays Winner Payout, Over/Under – Friday, June 26

The Rays enter Friday's game as a favorite against the Diamondbacks, returning a 1.74x payout with a win, per PrizePicks Team Picks.

Here are the full payouts for the Diamondbacks vs. Rays game on PrizePicks today.

• Spread: Tampa Bay Rays -1.5 (2.55x payout)
• Over/Under: 8.5 (1.92x payout on Over)
• Game Winner Payout: Diamondbacks 2.22x | Rays 1.74x

Play the Diamondbacks vs. Rays winner or over/under on PrizePicks Team Picks to earn real money — available in 35 states!

Team Picks data is live at the time of writing and is subject to change.

Diamondbacks vs. Rays Prediction on Winner

Here are the key game stats and trends behind tonight's Diamondbacks vs. Rays winner pick, with the run-line set at 1.5 in favor of the Rays, on Friday, June 26.

• As a home favorite this season, the Tampa Bay Rays own an impressive 21-11 record, which is one of the best records in baseball.
• As an underdog against right-handed pitching this season, the Arizona Diamondbacks own an ugly 9-20 record outright.
• On the road this season, Zac Gallen owns just a 2-6 record, with his ERA rising to a sky-high 6.98 away from home.
• Gallen’s xFIP in away games is 5.18, compared to 4.27 at home. That jumps to 5.49 vs. LHB on the road.
• In the first game of a series at home this season, the Tampa Bay Rays own a 10-3 record.
• Coming off a win and playing at home this season, the Tampa Bay Rays own the best record in baseball at 17-6.
• The Rays have the fifth best wRC+ at home this season (114), with the second-best batting average (.270); ARi ranks 26th (87) and 22nd (.231) in those stats on the road respectively.

Make your Diamondbacks vs. Rays prediction on winner on PrizePicks now!

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Diamondbacks vs. Rays Picks, Player Stats for PrizePicks: 6/26/26

Here are the top Diamondbacks vs. Rays picks to target on Friday, June 26. Today's MLB picks today for PrizePicks include Nick Martínez and Zac Gallen

Rays P Nick Martínez – 2.5 Earned Runs Allowed

The Tampa Bay Rays have always been a pitcher's factory, a place where arms go to rebuild their mechanics and revive their careers, and Nick Martínez is a great example of that.

Across his last 122 plate appearances, Martínez has allowed just a 7.1% barrel percentage, a sub-40% hard-hit percentage, and an impressive 26.5% fly-ball percentage. He's currently posting the best ERA of his 12-year career at 2.73.

A big reason for that success is one of the best changeups in baseball. Martinez throws it 31% of the time against lefties, holding them to a .164 average, and goes to it 24% of the time against righties, who are batting an astonishing .040 against the pitch with a 35.2% whiff rate. 

Martinez has increased his changeup from 19% in 2025 to 28% in 2026 which is a huge factor in his success this season and a big credit to the Rays analytics department for enforcing this.

The Diamondbacks, who have struggled badly against right-handed changeups this season. Over their last 48 plate appearances against the pitch, Arizona owns just a .214 BABIP, a sub-10% barrel rate, a 25% hard-hit percentage, and a whopping 33% ground-ball rate.

Add Rays P Nick Martínez to your PrizePicks Lineup now.

Diamondbacks P Zac Gallen – 21.5 Pitcher Fantasy Score

Zac Gallen is a shell of the pitcher he once was in Arizona. He stinks now.

Across his last 123 plate appearances, he's allowed an 8.8% barrel rate and a 43.1% hard-hit percentage, and his lack of movement has translated into an ugly 9.8% swinging-strike percentage paired with a weak 18% whiff rate. 

That decline has shown up on the scoreboard as Gallen has surrendered 20 earned runs across his last 20 innings and has given up 3+ earned runs in each of his last six starts, including a nine-earned-run disaster last time out in which he lasted just four innings.

The underlying numbers are just as alarming, with an expected batting average of .304 that ranks in the bottom 1% of all MLB starting pitchers and a 5.66 xERA that sits in the bottom 8% of the league. 

His 4-seam fastball against left-handed hitters has been demolished, throwing it 41% of the time, hitters are batting over .400 against it, and it generates just a 6% whiff percentage. 

That plays right into the hands of a Rays lineup that feasts on right-handed heat, having posted a .341 BABIP, a barrel rate above 10%, and a near-50% hard-hit percentage over their last 153 plate appearances against right-handed fastballs. 

It doesn't help that Yandy Díaz, who is hitting .500 (3-for-6) against Gallen in his career, is batting leadoff today.

Add Zac Gallen to your PrizePicks Lineup now

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Make Your Diamondbacks vs. Rays Prediction on PrizePicks

The Dbacks and Rays head into game one of a new series on Friday, with two pitchers having much different seasons on the mound. 

Don't wait until the first pitch at 7:10 p.m. ET  — make your Diamondbacks vs. Rays picks or picks on any MLB game on PrizePicks now and earn real money if you're right.

Pick players, predict More or Less on their stats, and cash in if you're right. With Team Picks, you can make predictions on game winners, spreads, and over/unders, now available in 35 states.

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