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Guide
How to become a professional sports bettor
A professional sports bettor lives on a small edge, repeated hundreds of times. This guide sets out the numbers: the win rate you need, the bankroll it takes, the losing streaks you must absorb, and what a prop firm changes in the equation.
Facts checked on · How we compare
In short
- The edge
- At -110, you need to win more than 52.4% of your bets. At 55%, the return is 5%.
- The volume
- A 5% edge only shows over hundreds of bets.
- The bankroll
- Stakes of 1% to 2% of the bankroll, to survive bad runs.
- The streaks
- Over 500 bets won 55% of the time, eight straight losses happen more than one time in three.
- The prop firm route
- A simulated bankroll for the price of a challenge, and a share of the profits.
What a professional sports bettor is
A professional bettor does not win more often than others on instinct. A professional places bets at odds that are better than the real probability of the outcome, and does it often enough for that gap to pay.
The income can be calculated: total amount staked, multiplied by the return. Everything else follows from that: the size of the bankroll, the number of bets, the patience.
The edge: the only number that matters
Every price has a break-even rate: the win rate at which you stop losing money. In decimal odds, it is 1 divided by the odds.
| Odds | -200 (1.50) | -125 (1.80) | -110 (1.91) | +100 (2.00) | +150 (2.50) | +200 (3.00) |
|---|---|---|---|---|---|---|
| Minimum win rate | 66.7% | 55.6% | 52.4% | 50.0% | 40.0% | 33.3% |
Above the break-even rate, every point of win rate turns into return. Here is the example at -110, the standard price on spreads and totals.
| Win rate | 50% | 52.4% | 54% | 55% | 57% | 60% |
|---|---|---|---|---|---|---|
| Return | −4.5% | 0% | +3.1% | +5.0% | +8.9% | +14.6% |
The gap between a break-even bettor and one who earns 5% on every dollar staked is fewer than three extra wins per hundred bets. That is why a return cannot be judged on twenty bets.
How much bankroll to live on it
The calculation fits on one line: number of bets × stake × return. Take 150 bets a month, each at 2% of the bankroll. The total staked is three times the bankroll. At a 5% return, the average profit is 15% of the bankroll per month.
| Average income targeted | Bankroll at a 3% return | Bankroll at a 5% return |
|---|---|---|
| $1,000 a month | $11,100 | $6,700 |
| $2,000 a month | $22,200 | $13,300 |
| $3,000 a month | $33,300 | $20,000 |
These amounts assume the return exists. It is the most fragile assumption in the calculation: it has to be measured on your own record, bet by bet, before you commit money.
Losing streaks are part of the job
Even at a 55% win rate, losses come in runs. Here is the probability of at least one run of a given length, depending on the number of bets.
| Losing streak | Over 100 bets | Over 500 bets |
|---|---|---|
| 5 in a row | 64.7% | 99.5% |
| 6 in a row | 36.3% | 90.3% |
| 8 in a row | 8.4% | 36.9% |
| 10 in a row | 1.7% | 8.8% |
Eight losses at 2% stakes cost 16% of the bankroll. The same eight losses at 5% cost 40%. Stake size decides whether a bad run is an incident or the end. The details are in our guide to sports betting bankroll management.
What a prop firm changes in the equation
A prop firm replaces capital with an entry fee. You pay for a challenge, from $29.99 to €109 for a standard entry account among the operators we compared. You bet a simulated bankroll. If you reach the target without crossing the loss limits, you then receive 60% to 90% of the profits.
The trade-off is in the rules. Take a bettor who wins 55% at -110 and stakes 2% per bet. Over 200,000 simulated runs, that bettor reaches +35% before losing 20% in 72% of cases when there is no time limit. With 90 bets at most, or three a day for 30 days, the figure falls to 11%. To make the deadline, the bettor has to raise stakes to 5%, and the chance of passing comes back to 49%.
A deadline does not change your skill. It forces you to bet bigger, and so to depend more on luck. It is one of the first things to check in the comparison of sports prop firms.
Where to start
- Keep a record. Every bet, its odds, its stake, its result. Without a record there is no measured return.
- Judge on volume. A few dozen bets prove nothing. Wait until you have several hundred.
- Fix a stake. 1% to 2% of the bankroll, the same on every bet, including after a loss.
- Compare your price with the closing line. If you regularly get better odds than the price at kickoff, that is a good sign your edge is real.
- Choose your ground. Your own money at a sportsbook, or a simulated bankroll at a prop firm: the guide to prop firms explains the difference.
Frequently asked questions
Can you make a living from sports betting?
On paper, yes, under three conditions: a positive return measured over several hundred bets, steady volume and a large enough bankroll. At a 5% return, 150 bets a month and 2% stakes, it takes a bankroll of about $13,300 to average $2,000 a month, with losing months along the way.
What win rate do you need to be profitable?
It depends on the odds. At -110 (1.91 in decimal odds) you need to win more than 52.4% of your bets. At 55%, the return is 5% of every dollar staked. At +150 (2.50), the break-even rate falls to 40%.
How big a bankroll do you need to start?
An amount you can afford to lose, split into at least 50 to 100 stakes. With stakes of 1% to 2% of the bankroll, a run of eight straight losses, which happens more than one time in three over 500 bets, costs 8% to 16% of the bankroll without putting it at risk.
Does a prop firm replace the bankroll?
It replaces capital with an entry fee. You pay for a challenge, you bet a simulated bankroll, and you receive a share of the profits once you pass. What you risk is the fee. The staking and loss rules are the operator's.