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San Francisco Giants vs. Miami Marlins prediction, pick for Thursday 6/26/25

San Francisco Giants vs. Miami Marlins prediction, pick for Thursday 6/26/25

Published:

By: Dan Johnson

Oracle Park is electric this afternoon as the Marlins look to hammer home a stunning sweep and the Giants scramble to stop the bleeding. Miami’s been surging, putting together disciplined at-bats and grinding every pitch, while San Francisco stares at a must-win game with their rookie on the mound and an offense that’s gone cold. Below, I’ve got my preview, prediction, and best bet for this Thursday baseball game between the Giants and the Marlins.

Here’s how I’ll play it. I’ll be pumping out these predictions for individual games all season, with plenty of coverage here on DraftKings Network. Follow my handle @dansby_edits for more betting plays.

Giants vs. Marlins prediction, preview

Oracle Park feels like a live wire right now. The Marlins come in swinging hot, and nobody in orange and black can ignore it. Miami’s bats have put up 17 runs across the last three games, and they’re grinding at the plate with a .253 average that suddenly looks dangerous. Otto Lopez is on a six-game hitting streak, going 11-for-24 (.458) with six RBIs, and his 111 wRC+ underscores his ability to produce in big spots. Meanwhile, San Francisco’s lineup has felt tight, mustering just a .231 average this year and limping home after losing three of their last five. The Giants might sit at 44-36, but this version looks vulnerable.

That’s what makes this spot so intriguing. Hayden Birdsong takes the ball with a flashy 3-1 record and 3.25 ERA, but there are cracks. Over his past three starts, his ERA spikes to 5.52 with a worrying 1.63 WHIP. That control isn’t where it needs to be, with a walk rate flirting near nine percent, and Miami’s patient approach will make him pay. Even with only six homers allowed this year, his hard-hit rate sits in the bottom third of the league. That’s not going to play well if he’s behind in counts. And let’s not overlook that Birdsong’s xFIP of 4.24 is nearly a full run higher than his ERA, showing regression is lurking.

Janson Junk doesn’t jump off the page, but the numbers are eye-opening. The Marlins right-hander owns a sparkling 2.60 ERA and tiny 1.01 WHIP. He’s fanned 25 across 27.2 innings while issuing just two walks all season. That’s pinpoint control paired with a ground ball rate over 45%, exactly what neutralizes a Giants lineup slugging a paltry .373. This is a bullpen that’s had its shaky stretches, sure, but it’s posted a 2.49 ERA over its last six games. Junk’s FIP of 3.40 backs up his ERA, and his 0.7 BB/9 rate ranks him in the top 5% of all starters — you can’t fake that kind of dominance.

Marlins vs. Giants pick, best bet

The counterarguments feel loud but shallow. Some will point to San Francisco’s bullpen dominance or their home splits. But this Giants team is only 1-4 ATS in their last five at home as a favorite. They’re also facing a Marlins club that’s 23-14 ATS on the road and hitting a blistering .458 with runners in scoring position over their last six games. Even the bullpen gap is closing when you look at the most recent data. The wind is blowing out toward right-center at Oracle, which will give an edge to whoever barrels the ball more. Miami is making more loud contact right now. Kyle Stowers (.274 average, 132 wRC+) leads the team in homers — they’ll feast if Birdsong misses his spots.

The underdogs have covered in 19 of the Giants’ last 20 at Oracle as home favorites. The Marlins are 9-9 on the road versus NL teams with slugging under .400 and they’re up +5.4 units in that split. That’s value you don’t pass up, especially when their current form screams momentum. On the other side, Heliot Ramos has been a bright spot for San Francisco with a 139 wRC+ over the past two weeks and a 10.2% barrel rate, but he’s been one of the few productive bats. Wilmer Flores has a 107 wRC+ and 54 RBIs, yet his average exit velocity is down 2.5 MPH compared to last year, a troubling sign against an arm like Junk. Give me the hot-hand and the live arm.

I’m not overthinking this. Miami is a juicy +155 on the Moneyline, and that’s exactly where I’m putting my money. Junk’s control, Birdsong’s occasionally-shaky command, a Marlins team that’s already won two in this series — it’s all pointing one way. Lock in the Marlins ML at +145 and watch them complete the sweep.

Best bet: Marlins (+155) at Giants

Fear the fish—tail it with me in the DKN Betting Group here!

Dan Johnson has been an editor, writer, and analyst for DraftKings and DraftKings Network since 2024. He’s previously held editorial posts at The Paris Review, Macmillan Publishers, Bedford/St. Martin’s Press, ASSIGNMENT Magazine, and FantasySixPack. You can find his various editorial work & writing (sports-related and non-) at all of the above.
Disclaimer

I am a promoter at DraftKings and am also an avid fan and user (my username is thegreatdansby9) and may sometimes play on my personal account in the games that I offer advice on. Although I have expressed my personal view on the games and strategies above, they do not necessarily reflect the view(s) of DraftKings and do not constitute a representation that any particular strategy will guarantee success. All customers should use their own skills and judgment in building lineups. I may also deploy different players and strategies than what I recommend above. I am not an employee of DraftKings and do not have access to any non-public information.