A stop loss is a point, decided before you trade, at which you close a losing position and accept a small, known loss instead of hoping the price comes back. On a betting exchange that means laying off a back bet (or backing a lay) once the price moves a set distance against you. This guide explains how a stop loss works in football trading, how to work out the stake to close a trade, and why football markets make stops harder to hit than they look.
Read the transcript
A stop loss caps the damage when a trade goes wrong. Here’s how to set one, how to work out the stake to close a trade, and why football makes stops harder to hit. A stop loss is a point, decided before you trade, where you close a losing position. On an exchange, that means laying off a back bet, or backing a lay, once the price moves against you. Most trading strategies win small amounts often, and lose bigger amounts less often. So one trade left open in hope can wipe out a week of profits. A stop loss makes that risk a planned one. You can set a stop by price, for example 10 ticks against you. Or by money, such as 2% of your trading bank. You can also use time, or an event like a goal. For example, you back the home team for £10 at 3.0, with a stop at 3.5. Then the price drifts to 3.5, and your stop is hit. To close, lay £10 × 3.0 ÷ 3.5. That’s £8.57. Now you lose £1.43 whatever happens, instead of having £10 at risk. However, football prices jump. After a goal, the market suspends and might reopen at 6.0, well past your stop. Closing then locks in a £5 loss. This is called slippage. So write your stop down before you enter, and don’t move it further away. Keep stakes small enough to hit several stops in a row. And remember, a stop limits risk, but it doesn’t create an edge.
The short version
- A stop loss caps the damage from a trade that goes wrong.
- You set it before you enter: a price, a number of ticks or an event such as a goal.
- To close a back bet: lay stake = back stake × back odds ÷ current lay odds.
- Goals and red cards make prices jump, so you can’t always exit at your exact stop.
Why a stop loss matters
Most trading strategies win small amounts often and lose bigger amounts less often. One trade left open in the hope of a recovery can wipe out a week of small profits. A stop loss turns an open-ended risk into a planned one, so a bad run costs what you expected rather than your whole bank.
It also takes the decision out of the moment. Deciding your exit while the price is moving against you is when mistakes happen.
Ways to set a stop loss
- Price or ticks: exit if the price moves a set number of ticks against you, for example 10 ticks.
- Money: exit once the loss reaches a fixed amount, such as 2% of your trading bank.
- Time: exit if the trade hasn’t worked by a set minute, common in lay the draw and under 2.5 goals trades.
- Event: exit after a goal, a red card or another event that breaks the reason for the trade.
Worked example: a stop loss on a back trade
Worked example
You back the home team for £10 at 3.0 before kick-off, planning to trade out if the price shortens. You set a stop loss at 3.5.
- The price drifts to 3.5. Lay stake to close: £10 × 3.0 ÷ 3.5 = £8.57.
- If the home team wins: +£20 on the back bet, −£21.43 liability on the lay (£8.57 × 2.5) = −£1.43.
- If they don’t win: −£10 on the back, +£8.57 on the lay = −£1.43.
- Without the stop, you’d still have £10 at risk.
Closing a trade with an equal result either way is the same calculation as greening up. When the trade is losing it is sometimes called “redding up”.
Why stop losses slip in football
Football prices don’t move smoothly. When a goal is scored, the exchange suspends the market and reopens at a new price. If you backed the home side at 3.0 and the away side scores, the price might reopen at 6.0, well past your stop at 3.5. Closing then costs much more: a lay of £5.00 at 6.0 locks in a £5.00 loss instead of £1.43.
This is called slippage. You can’t remove it, but you can plan for it. Size each trade so the realistic worst case, not just your stop, fits your budget, and avoid trades where one goal would break your plan completely.
Stop losses and exchange commission
Commission is charged on your net winnings in each market, so a trade closed at a loss usually pays none. A small loss is still a loss, though, and repeated stops add up. Our guide to exchange commission explains how it affects small trades.
Making stop losses part of your plan
- Write the stop down before you enter, and don’t move it further away once the trade starts.
- Keep stakes small enough that hitting several stops in a row is affordable.
- Record every trade, including stopped ones. Our guide to keeping betting records shows what to track.
- Review whether your stops are too tight (hit by normal price noise) or too loose (losses too big).
A stop loss limits risk but doesn’t create an edge. Long-term results still depend on whether your entries are good. See our guide to finding a trading edge and our bankroll management guide.
Related guides
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