Lay-to-lay scalping calculator
Lay at high, re-lay at low for guaranteed profit (exchange trading)
Calculate locked profit when you lay first at high odds, then back at lower odds.
What is lay-to-lay scalping?
Lay-to-lay (inverse back-to-lay) is exchange scalping where you lay a selection at higher odds expecting prices to drop. If prices drop, you back (close) at lower odds locking profit. Same math as Lay sequence builder but optimized for single-shot scalp trades. Combine with Lay bet calculator for liability basics.
See also: Lay bet (Exchange), Lay sequence builder, Hedge calculator
How to use
- 1Enter your lay (sell) odds and stake.
- 2Enter back (close) odds.
- 3Enter exchange commission.
- 4See locked profit on both outcomes.
Example: tennis in-play scalp
Player A leading 5-3 — odds drift to 1.20. You lay €100 at 1.20 (liability €20). Player A goes 5-4: odds shift to 1.35. Back €89 at 1.35 (returns €120). Result: if A wins, gain from back covers lay liability. Net profit ≈ €11 either way after 2% commission.
When to use
- In-play trading where price swings predictably
- Pre-event swings on news
- Late-stage tennis/football market trading
Frequently asked questions
What is the Lay-to-lay scalping calculator?
Lay-to-lay (inverse back-to-lay) is exchange scalping where you lay a selection at higher odds expecting prices to drop. If prices drop, you back (close) at lower odds locking profit.
How does the Lay-to-lay scalping calculator work in practice?
Player A leading 5-3 — odds drift to 1.20. You lay €100 at 1.20 (liability €20). Player A goes 5-4: odds shift to 1.35. Back €89 at 1.35 (returns €120). Result: if A wins, gain from back covers lay liability. Net profit ≈ €11 either way after 2% commission.
When should I use the Lay-to-lay scalping calculator?
In-play trading where price swings predictably. Pre-event swings on news. Late-stage tennis/football market trading.