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What are Compounding Returns? The Secret to Profitable Sports Betting

Updated February 9, 2025 | 10:03 am CDT by Isaiah Sirois

Sports betting is a unique investment opportunity because of something called compounding returns. As opposed to bank s, where interest will compound either monthly or quarterly, sports betting offers you a chance to get daily returns — the key just getting enough action down. If you can find a reliable way to find even, say, a 2% daily return, that can become a windfall quickly. So, what are compounding returns, and how are they the secret to profitable sports betting? Let’s dive into the answers as I dish out my tips for a profitable sports betting strategy.

What are Compounding Returns? Tips for Profitable Sports Betting

Compounding Returns Demonstration

The chance to secure returns that compound daily can render sports betting a profitable enterprise — until you get limited, at least. Take a look at the graphic below to see the long-term upshot of those daily returns versus high-yield savings s that compound monthly or traditional savings s that compound quarterly:

Time Sports Betting (2%) HYSA (5%) Savings (1%)
First Deposit $1,000 $1,000 $1,000
1 Day $1,020 $1,000 $1,000
1 Week $1,126 $1,000 $1,000
1 Month $1,776 $1,005 $1,000
1 Quarter $6,062 $1,016 $1.002

To calculate daily compounding returns on your own, simply open up an Excel workbook, type your starting bankroll in A1, insert “=A1*1.02” into A2 and copy the formula down. Things can get crazy, quick. Over a full-year sample of daily bets that all gave you a 2% return, you would be up… $1,350,400.

Of course, you’d be limited far before that point, but similar profits are well within your range of outcomes.

Check Out Portfolio EV’s Average Returns

Now that you know how profitable even an average 2% daily return can be, the question is simple — how can you attain those 2% daily returns? It can be difficult to do so, especially with sportsbooks pushing same-game parlays and charging 5.5% juice (or vig).

Fortunately, results page for the 2023-24 NBA season:

If, during the 174 days of the NBA season (October 24 to April 14) you secured that 7.6% average ROI on all of your bets placed, you certainly would’ve benefited from compounding returns.

Let’s say you started with a bankroll of $100. If you had gotten the average return of 7.6% every day and kept your returns in the books (and, you know, weren’t limited), you would have had $31,880,340 by season’s end.

Of course, getting exactly that 7.6% return every day is nearly impossible, but by placing a large number of +EV bets, you can insulate yourself from variance to make the most favorable outcomes more likely.

Even a small bankroll can blossom into a large one with our tools.

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Isaiah Sirois

Author

Isaiah Sirois

Isaiah Sirois is a sports betting analyst at OddsShopper specializing in basketball, football and motorsports. Basketball is Isaiah’s favorite sport to handicap, and he has covered NBA, WNBA, NCAA and FIBA markets for OddsShopper and other sites. However, Isaiah’s favorite sport to follow is auto racing, and you can usually find him watching NASCAR or IndyCar on Sundays. He will be a fan of Team Penske and Ford Performance until the end of time. Isaiah graduated with a bachelor’s degree in history from Emory University and briefly attended Vanderbilt Law School before dropping out to work at OddsShopper.

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