Why most bettors lose
Every bookmaker builds a margin into its odds. In an even game priced 1.90 on both sides, the implied chances add up to 105%: the extra 5% is the bookmaker's cut. Bet without an edge and, over time, you lose roughly that margin on everything you stake, whichever side you pick.
The "safe" favourite, tested
Betting on favourites feels safe because they usually win. To check, we took ten seasons (2016/17 to 2025/26) of twenty European football leagues from football-data.co.uk and bet one unit on the favourite in every match where Bet365 priced it between 1.50 and 2.00.
That's 28,006 bets. The result was a loss of 4.45% of everything staked: 100 kronor on each would have lost about 124,500 kronor. Teams priced at 2.00 won about 47% of the time, not the 50% the odds suggest, and combining favourites into accumulators made it worse, a loss of roughly 8 to 17% depending on how many legs.
The favourites did win most of their games. They just didn't win often enough to pay for the margin.
Who does come out ahead
The bettors who win over time are the ones who keep getting better prices than the market: they bet when a bookmaker's odds are higher than the fair odds, worked out from a sharp market like Pinnacle with the margin removed. The proof isn't a winning month but closing-line value, whether the price taken beat where the market settled just before the start.
That edge is small. Sharp Bets has measured the closing line on 4,365 of its picks; their average CLV is +2.68%, with a 95% range of +2.38% to +2.97%, so it is clearly above zero rather than a lucky streak. A few percent per bet, over hundreds of bets, with long losing runs along the way.
What a real edge looks like from the inside: our own record
Sharp Bets has 4,519 graded picks: 1,773 won and 2,665 lost, +158.69 units at the suggested stakes, a return of +2.60% with a 95% range of −1.56% to +6.75%, a range that still includes zero. The closing line is the better test of the edge itself.
The closing line says those picks were worth about +330.65 units. The luck meter on the Track Record puts the actual result at the 14th percentile of what that edge could have produced, inside the normal range of luck.
Even with that edge, the record has been 68.7 units below its high at one point, and its longest stretch without a new high lasted 47 days. That is what winning over time feels like while it happens, and why anyone trying needs a bankroll and patience for runs like that. Every figure here updates with the record.
"If it worked, wouldn't the bookmakers do it themselves?"
They do, in a sense. Sharp bookmakers such as Pinnacle set their prices carefully and take large bets from professionals. Many other bookmakers follow the market and move their prices after it, so for a short while some of their odds are out of date.
That gap is the value. Bookmakers know it exists and accept it, because they make their money from the large majority who bet without an edge, and they limit the few customers who keep beating them.
What to expect if you try
- A few percent per bet at best, not a monthly income.
- Hundreds of bets before the result says much.
- Losing weeks, even with a real edge.
- Accounts that get limited sooner or later, which our guide on getting limited covers.
Wondering whether that suits you? Is +EV betting for you? is an honest checklist, and Stop betting like everyone else explains the approach in plain terms.
Only bet money you can afford to lose; Spelpaus and the Stödlinjen helpline are there if betting stops being fun.
Common questions
Can you make a living from betting?
Very few people do. An edge of a few percent needs a very large turnover to add up to an income, and winning accounts get limited along the way.
Is betting on favourites a good strategy?
Not on its own. In our test of 28,006 favourites priced 1.50 to 2.00 over ten seasons, betting all of them lost 4.45% of the money staked.
What is the best sign that a strategy works?
Consistently beating the closing line over hundreds of bets. Profit over a short period is mostly luck.