MLB Home Run Props & Predictions Today: Best HR Picks & Parlay for September 8

Colby Marchio - Contributor at Covers.com
Colby Marchio • Betting Analyst 7+ years betting experience
Updated: Sep 8, 2026 , 12:42 PM ET • 4 min read

Marlins slugger Heriberto Hernandez has been on a tear over his last 10 games, posting a .289 ISO and 17.4% ground-ball rate while barreling the ball more than 17% of the time. He has plenty of potential to leave the yard tonight.

Miami Marlins Heriberto Hernandez MLB
Photo By - Reuters Connect. Miami Marlins left fielder Heriberto Hernandez (13) reacts after hitting a solo home run.

Let's keep the good vibes rolling with three of my favorite home run props and predictions for today's MLB slate.

Find out why I am backing Junior Caminero and Heriberto Hernandez tonight.

These are my favorite MLB picks for Tuesday, Sept. 8.

MLB home run props for today

For help understanding Polymarket probabilities, see our odds calculator.

Player to hit a HR Chance
Rays Junior Caminero  26%
Marlins Heriberto Hernandez 23%
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Home run prediction: Junior Caminero (26%)

Despite the small sample size, Atlanta Braves right hander AJ Smith-Shawver has been horrendous against right-handed hitters this season, allowing a .346 BA, .538 SLG, and 1.023 OPS across 33 batters.

Tampa Bay Rays slugger Junior Caminero has the highest matchup rating in this game over at Batters-Box, where he leaves the yard 32.26% of the time with an elite road rating. Caminero also covers nearly 97% of Smith-Shawver’s pitch mix.

Over his last 10 games, Caminero owns a .525 SLG and .250 ISO with a 51.6% hard-hit rate and nearly 13% barrel rate.

Caminero should be just fine against a guy still trying to find his footing against righties. 

  • Time: 7:15 p.m. ET
  • Where to watch: RAYS, BravesVsn

Home run prediction: Heriberto Hernandez (23%)

Big day to back a Hernandez, as we’re backing Miami Marlins slugger Heriberto Hernandez this evening against New York Mets southpaw Sean Manaea.

The young Marlins slugger has been all over left-handed pitching this season, owning a .543 SLG and .879 OPS. On top of that, Hernandez has been mashing over his last 10 games, posting a .289 ISO and 17.4% ground-ball rate while barreling the ball more than 17% of the time.

Manaea has been progressively getting worse as the games go by. Over his last five outings, he owns a 5.87 ERA while allowing a 15.46% barrel rate. Over his last three starts, he has a 7.79 ERA and a near 18% barrel rate.

The last 60 right-handed hitters the veteran has faced have generated a barrel rate of nearly 20%, along with a .363 xBA and .744 xSLG.

If Manaea is going to continue getting worse as the season progresses, let’s fade the daylights out of him.

  • Time: 6:40 p.m. ET
  • Where to watch: MIAM, SNY
Colby Marchio's 2026 Transparency Record
  • HR picks: 122-417, +26.2 units

Odds are correct at the time of publishing and are subject to change.
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Colby Marchio
Betting Analyst

Colby Marchio is a two-time DePaul alum and former Division 1 (club) baseball player who has been sports betting since 2019. Since graduating in 2021, he has worked throughout the media circuit, hosting and appearing on various television and radio shows while making countless guest appearances discussing Major League Baseball, college basketball, college football, and the National Football League.

A self-proclaimed numbers nerd, Colby may enjoy digging through the data even more than winning itself. That passion is why his two favorite sports to cover are college basketball and Major League Baseball. 

As for his favorite sportsbook, it is whichever one has the best price, or whichever one is not taxing him as an Illinois resident. 

You can find all of his plays and more @ColbyMBets on Twitter/X.

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