Free MLB home run picks, odds for May 15: Gunnar Henderson in expert's best bets for Friday HR player props

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Rivalry Weekend takes place starting on Friday, creating top matchups for MLB fans and baseball bettors. High-profile games, such as Yankees vs. Mets and Dodgers vs. Angels, generate plenty of MLB betting options for baseball bettors. There are several entertaining forms of baseball prop betting, including MLB home run props. Before you lock in your MLB HR picks today, you'll want to see what SportsLine data analyst Jacob Fetner has to say. Fetner was up 50 units on his MLB home run picks on betting sites last year and just revealed three MLB prop bets for Friday, May 15. Orioles shortstop Gunnar Henderson (+390) is among his best MLB HR bets today, and you can also parlay today's selections for a return of over 130-1 on some of the best sports betting apps. Henderson has two home runs in 23 at-bats against Nationals probable starter Zack Littell.

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Best Home Run picks for Friday

• Mickey Moniak, Rockies (+309, DraftKings)
• Gunnar Henderson, Orioles (+390, FanDuel)
• IIdemaro Vargas, Diamondbacks (+571, DraftKings)

Mickey Moniak, Rockies (+309, DraftKings)

"Mickey Moniak is hitting .343 with a 1.139 OPS against right-handed pitchers this season, with 10 of his 12 home runs coming off RHPs," Fetner said. "He's hitting .358 with a 1.255 OPS at home this season, compared to .254 and .795 on the road. He has been on a tear lately, hitting six home runs over his last 10 home games. Merrill Kelly has given up five of his six home runs this season to left-handed batters. Left-handed batters are hitting .328 with a 1.144 OPS against Merrill Kelly this season. He's also been struggling recently, allowing 12 earned runs in 16 ⅓ innings pitched over his last three starts, including two home runs.