What 3/10 means
With fractional odds, the first number is what you win and the second is what you stake. At 3/10, you stake £10 to win £3, so your profit is smaller than your stake. That's what makes it odds-on: the bookmaker rates this outcome as more likely to happen than not.
It's read as "three to ten", but bookmakers often turn odds-on prices round, so you'll also hear 3/10 called "ten to three on" or "10/3 on". Both mean the same thing.
3/10 in decimal and American odds
| Format | 3/10 as | How it's worked out |
|---|---|---|
| Decimal | 1.30 | 3 ÷ 10 + 1 |
| American | -333.33 | 100 ÷ (1.30 − 1) |
| Implied probability | 76.9% | 1 ÷ 1.30 |
What 3/10 pays
| Stake | Profit | Total return |
|---|---|---|
| £1.00 | £0.30 | £1.30 |
| £2.00 | £0.60 | £2.60 |
| £5.00 | £1.50 | £6.50 |
| £10.00 | £3.00 | £13.00 |
| £20.00 | £6.00 | £26.00 |
| £50.00 | £15.00 | £65.00 |
| £100.00 | £30.00 | £130.00 |
How likely is 3/10 to win?
3/10 implies a 76.9% chance, or about 10 in 13. The bookmaker expects this outcome more often than not. The true chance is usually a little lower than this, because bookmakers build a margin into every price.
3/10 each way
An each way bet splits your stake between a win bet and a place bet, with the place part paid at a fraction of 3/10. For a £5 each way bet (£10 in total):
| Place terms | Place odds | Returns if it wins | Returns if it places |
|---|---|---|---|
| 1/4 odds | 3/40 | £11.88 | £5.38 |
| 1/5 odds | 3/50 | £11.80 | £5.30 |
At 1/5 terms, a placed finish returns £5.30 from the £10 total stake, so it still loses £4.70 overall. Each way needs bigger prices than 3/10 for the place part to cover the bet. Work out any each way bet.
If a horse at 3/10 is withdrawn
When a horse priced at 3/10 is withdrawn after you've bet on another runner in the same race, Rule 4 takes 75p from every £1 of your winnings. It applies to bets struck at a fixed price before the withdrawal. Work out a Rule 4 deduction.
Prices either side of 3/10
See every common price explained, or convert any price with the odds converter.