MLB Home Run Predictions Today: Best HR Prop Bets, Picks, Parlay & Odds for Saturday, Aug. 22

Quinn Allen - Betting Analyst at Covers.com
Quinn Allen • Betting Analyst 7+ years betting experience
Updated: Aug 22, 2026 , 09:31 AM ET • 4 min read

Pete Alonso's recent power surge plays well against a vulnerable Rays bullpen.

Jordan Walker of the St. Louis Cardinals MLB
Photo By - Reuters Connect. Jordan Walker of the St. Louis Cardinals MLB

Another full slate in the big leagues means lots of opportunity for long balls in my MLB player props home run analysis. 

Included in today's picks are Alejandro Kirk, Jordan Walker, and Pete Alonso. 

Find out more in my MLB picks for Saturday, August 22. 

Best MLB home run props today

Player to hit a HR Odds
Cardinals Jordan Walker +442
Blue Jays Alejandro Kirk +442
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Home run pick: Jordan Walker (+442)

St. Louis Cardinals star Jordan Walker is tearing the cover off the baseball right now. He's gone deep in three straight games, and the slugger has four long balls in his last eight contests

During that span, Walker has a .471 ISO and a mind-boggling 22.2% barrel rate. He's consistently getting lift as well, posting a 55.6% fly ball rate in the last week. Walker will face Andrew Painter tonight, who has a 6.08 FIP in his previous two outings while allowing 1.74 HR/9 and a fly ball rate of 41.4%

One mistake from Painter could be punished by one of the hottest bats in the big leagues. 

I'll play this pick down to +400. 

  • Time: 6:05 p.m. ET
  • Where to watch: NBC Sports Philadelphia, Cardinals.TV

Home run pick: Alejandro Kirk (+442)

Alejandro Kirk may not be a player who hits a lot of home runs, but he's showcasing his power lately. The Toronto Blue Jays catcher has two bombs in his last six games and a .304 ISO

Although his fly ball rate isn't huge during the last week, Kirk is consistently squaring up the baseball, posting a 50% hard-hit rate. Ryan Weathers hasn't allowed a lot of home run damage lately, but the New York Yankees' bullpen is vulnerable to the long ball at times, surrendering 1.26 HR/9 across the last month. 

Kirk is hot, and one mistake could see him leave the yard again.

Play this pick down to +400. 

  • Time: 1:35 p.m. ET
  • Where to watch: YES, Sportsnet
Quinn Allen's 2026 Transparency Record
  • HR picks:  18-88, -4.89 units

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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