MLB Player Props & Best Bets Today for September 11: Bryce Bryce Baby

Bryce Harper has had ample success against Mets SP David Peterson, leading to two of our favorite MLB player props for Thursday, September 11.

Quinn Allen - Betting Analyst at Covers.com
Quinn Allen • Betting Analyst
Sep 11, 2025 • 09:22 ET • 4 min read
Bryce Harper Philadelphia Phillies MLB
Photo By - Imagn Images. Phillies star Bryce Harper admires a home run vs. Mets.

It’s another busy day across the Majors, and I’ve dug deep for the best MLB player props for all the action. 

Big nights from the likes of Kevin Gausman and Bryce Harper - and a dud from David Peterson - will be in my picks for Thursday, September 11. 

Best MLB player props today

  • Blue Jays Gausman u2.5 ER (-118)
  • Mets Peterson o2.5 ER (-150)
  • Phillies Harper o1.5 TB (+120)

Our 3 best MLB player props for Thursday, September 11

Take a look at our best bets and expert analysis below.

Prop #1: Kevin Gausman Under 2.5 earned runs

-118 at BetMGM

Kevin Gausman owns a 3.63 ERA and a 9-10 record across 28 starts. Solid numbers as the Toronto Blue Jays look to grab the series win over the Houston Astros tonight. 

While he hasn’t always received a ton of run support, Gausman is throwing the baseball well, allowing fewer than 2.5 earned runs in back-to-back starts and in four of his last five. Last time out, the veteran threw an absolute gem, giving up a mere one run to the New York Yankees across eight frames. 

He’s had success against the Astros in the past, holding them to a .168 average across 107 at-bats.

  • Time: 3:07 p.m. ET
  • Where to watch: Space City Home Network, Rogers Sportsnet

Prop #2: David Peterson Under 2.5 earned runs

-150 at BetMGM

The New York Mets face the Philadelphia Phillies in a crucial NL East matchup tonight, and David Peterson has been in rough shape over the last few starts. While the lefty owns a 3.72 ERA overall, he’s surrendered 12 earned runs across his last two outings.

It won’t get any easier against the Phillies, who historically swing it well against him. They’re batting .304 versus Peterson across 115 at-bats, with the likes of Bryce Harper, Nick Castellanos, and Edmundo Sosa having success. 

Peterson also has a 6.75 ERA against Philadelphia this year, allowing seven earned runs in just two starts.

  • Time: 7:15 p.m. ET
  • Where to watch: FOX

Prop #3: Bryce Harper Over 1.5 total bases

+120 at BetMGM

If we’re going to take Peterson to get lit up with our MLB picks, Harper will play a role. As I mentioned, he’s done damage against the southpaw before, going 9-for-24 with a home run, and he’s batting .270 vs. left-handed pitchers in 2025. 

Harper cashed the Over in total bases on Wednesday, smacking a long ball in the 11-3 win. In fact, he’s hit the Over in total bases in back-to-back contests against the Mets. There’s every reason to believe he’ll stay hot in the series finale, too. 

He also swings it substantially better at home, hitting .299 compared to .234 on the road.

  • Time: 7:15 p.m. ET
  • Where to watch: FOX

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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Quinn Allen - Covers
Betting Analyst

Quinn Allen is an experienced sports journalist from Vancouver, Canada who fell in love with sports by the time he could walk. He proceeded to play high-level baseball and soccer growing up and eventually played college baseball in the United States.

After his career ended, Quinn received his broadcast journalism degree from BCIT and has since written for many sports publications including ClutchPoints, Gino Hard, and RG, where he plies his trade as a writer and editor.

Quinn's favorite team is Chelsea FC and he'd like to watch a match at Stamford Bridge one day. He loves to bet on NBA player props and encourages others to bet responsibly and not chase losses.

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