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Trade Out Calculator

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Also known as a Hedging or "Green Up" calculator. Use this to calculate the exact Lay stake needed to lock in a profit (or minimize a loss) across all outcomes.

The Art of the "Green Screen"

Gamblers hope. Traders calculate. This tool is the bridge between the two.

The concept is simple: Back High, Lay Low. If you back a horse at odds of 10.0 and the price drops to 5.0, you have created value. Instead of letting the bet ride and risking a loss, this calculator tells you exactly how much to "Lay" (bet against) the horse to guarantee a profit no matter who wins.

Profit vs. Mitigation: What do the colors mean?

Honest John's calculator uses two modes automatically:

  • • The Green Up (Profit): The Lay odds are lower than your Back odds. You have made a good trade. The calculator shows you how to spread that profit equally across the field. You win even if the horse loses!
  • • The Red Up (Stop Loss): The Lay odds are higher than your Back odds. The market has gone against you. The calculator shows you how to exit the trade to minimize the damage. Taking a small loss now is better than losing the whole stake.

Honest John's Golden Rule: "Nobody ever went bust taking a profit"

The hardest part of trading isn't the math (this tool does that)—it's the greed.

Scenario: You back a horse at 10.0. It trades down to 6.0 pre-race.

The greedy punter says: "It's steaming in! I'll let it ride for the big win!"
The smart trader says: "I'll Green Up now."

If you Green Up, you might win less than if the horse wins, but you eliminate the risk of it losing. Over a season, consistent small green screens beat the occasional big win followed by ten losses.

Master the Markets

Trading is about math, not luck. Improve your edge with these tools:

Manage Your Bankroll → Dutching Calculator → Full Tool Suite →

Disclaimer: This calculator is provided for educational purposes only. This tool calculates mathematical hedges. Market prices can change instantly. Honest John Tipster accepts no liability for losses incurred due to price movements or data entry errors. Profit figures are estimates including the commission rate entered.