{"success":true,"version":"v1","request":{"tool":"get_calculator_schema","calculator_id":"hedge-bet"},"result":{"entity_type":"calculator","id":"hedge-bet","calculator_id":"hedge-bet","canonical_url":"https://tttkmbb.com/gaming/hedge-bet","name":"Hedge Bet Calculator","title":"Hedge Bet Calculator – Hedge Stake for an Equal Profit Whichever Outcome Wins","category":"gaming","category_name":"Games & Betting Math","tool_name":"calculate_hedge_bet","featured_mcp_tool":false,"description":"Computes the stake to place on the opposite outcome so that the profit is the same whether the original bet or the hedge wins, and the profit (or loss) that this locks in.","use_when":"You hold a bet whose odds have shortened (a futures ticket or a live bet) and want to know how much to stake on the other side to lock in an equal result either way.","do_not_use_when":"You are placing fresh bets on all outcomes at the best available prices (use arbitrage-bet), or you want to hedge for a break-even instead of an equal profit. Mathematics only; not gambling advice.","inputs":[{"name":"original_stake","label":"Original stake","type":"number","required":true,"max":1000000000,"exclusive_min":0,"description":"Amount staked on the original bet.","example":100},{"name":"original_decimal_odds","label":"Original decimal odds","type":"number","required":true,"max":1000000,"exclusive_min":1,"description":"Decimal odds of the original bet when it was placed.","example":5},{"name":"hedge_decimal_odds","label":"Hedge decimal odds","type":"number","required":true,"max":1000000,"exclusive_min":1,"description":"Decimal odds now offered on the opposite outcome (the original bet losing).","example":1.5}],"outputs":[{"name":"hedge_stake","label":"Hedge stake","type":"number","decimals":2,"description":"Stake on the opposite outcome that equalises the profit: original_stake × original_decimal_odds / hedge_decimal_odds."},{"name":"guaranteed_profit","label":"Guaranteed profit","type":"number","decimals":2,"description":"Profit locked in whichever outcome wins (negative = locked-in loss)."},{"name":"profit_if_original_wins","label":"Profit if the original bet wins","type":"number","decimals":2,"description":"original_payout − original_stake − hedge_stake."},{"name":"profit_if_hedge_wins","label":"Profit if the hedge wins","type":"number","decimals":2,"description":"hedge_stake × hedge_decimal_odds − hedge_stake − original_stake (equal to the previous value by construction)."},{"name":"return_on_total_outlay_percent","label":"Return on total outlay","type":"number","unit":"%","decimals":2,"description":"guaranteed_profit / (original_stake + hedge_stake) × 100."},{"name":"original_payout","label":"Original payout","type":"number","decimals":2,"description":"original_stake × original_decimal_odds."},{"name":"total_outlay","label":"Total outlay","type":"number","decimals":2,"description":"original_stake + hedge_stake."},{"name":"combined_implied_probability_percent","label":"Combined implied probability","type":"number","unit":"%","decimals":2,"description":"100/original_odds + 100/hedge_odds; below 100 % the hedge locks in a profit, above 100 % a loss."}],"input_schema":{"type":"object","properties":{"original_stake":{"description":"Amount staked on the original bet.","type":"number","maximum":1000000000,"exclusiveMinimum":0,"examples":[100]},"original_decimal_odds":{"description":"Decimal odds of the original bet when it was placed.","type":"number","maximum":1000000,"exclusiveMinimum":1,"examples":[5]},"hedge_decimal_odds":{"description":"Decimal odds now offered on the opposite outcome (the original bet losing).","type":"number","maximum":1000000,"exclusiveMinimum":1,"examples":[1.5]}},"additionalProperties":false,"required":["original_stake","original_decimal_odds","hedge_decimal_odds"]},"output_schema":{"type":"object","properties":{"hedge_stake":{"description":"Stake on the opposite outcome that equalises the profit: original_stake × original_decimal_odds / hedge_decimal_odds.","type":"number"},"guaranteed_profit":{"description":"Profit locked in whichever outcome wins (negative = locked-in loss).","type":"number"},"profit_if_original_wins":{"description":"original_payout − original_stake − hedge_stake.","type":"number"},"profit_if_hedge_wins":{"description":"hedge_stake × hedge_decimal_odds − hedge_stake − original_stake (equal to the previous value by construction).","type":"number"},"return_on_total_outlay_percent":{"description":"guaranteed_profit / (original_stake + hedge_stake) × 100. Unit: %.","type":"number","x-unit":"%"},"original_payout":{"description":"original_stake × original_decimal_odds.","type":"number"},"total_outlay":{"description":"original_stake + hedge_stake.","type":"number"},"combined_implied_probability_percent":{"description":"100/original_odds + 100/hedge_odds; below 100 % the hedge locks in a profit, above 100 % a loss. Unit: %.","type":"number","x-unit":"%"}}},"formula":"hedge_stake = original_stake × original_decimal_odds / hedge_decimal_odds; guaranteed_profit = original_stake × original_decimal_odds − original_stake − hedge_stake; return_on_total_outlay_percent = guaranteed_profit / (original_stake + hedge_stake) × 100","method":"Equal-profit hedge for a two-outcome market: the hedge is sized so that both outcomes return the same total. In three-way markets the hedge price must cover every outcome other than the original selection (e.g. a lay or double-chance price). Probability mathematics only; not gambling advice.","sources":[{"name":"Arbitrage betting (Wikipedia)","url":"https://en.wikipedia.org/wiki/Arbitrage_betting","type":"reference","retrieved_at":"2026-09-24"},{"name":"Odds – moneyline, decimal and fractional odds and implied probability (Wikipedia)","url":"https://en.wikipedia.org/wiki/Odds","type":"reference","retrieved_at":"2026-09-24"}],"freshness":{"type":"static","max_age_seconds":null,"note":"Deterministic formula with fixed constants; results never go stale. Inputs supplied by the caller determine the output."},"examples":[{"name":"100 at 5.00, hedge now 1.50","inputs":{"original_stake":100,"original_decimal_odds":5,"hedge_decimal_odds":1.5},"expected":{"hedge_stake":333.33,"guaranteed_profit":66.67,"profit_if_original_wins":66.67,"profit_if_hedge_wins":66.67,"return_on_total_outlay_percent":15.38,"original_payout":500},"url":"https://tttkmbb.com/api/v1/calculate/hedge-bet?original_stake=100&original_decimal_odds=5&hedge_decimal_odds=1.5"},{"name":"100 at 1.80, hedge at 1.80 (locks in a loss)","inputs":{"original_stake":100,"original_decimal_odds":1.8,"hedge_decimal_odds":1.8},"expected":{"hedge_stake":100,"guaranteed_profit":-20,"return_on_total_outlay_percent":-10,"combined_implied_probability_percent":111.11},"url":"https://tttkmbb.com/api/v1/calculate/hedge-bet?original_stake=100&original_decimal_odds=1.8&hedge_decimal_odds=1.8"}],"faq":[{"q":"When does hedging lock in a profit?","a":"When 1/original_odds + 1/hedge_odds is below 1, i.e. the combined implied probability is under 100 %. That happens when the original price has shortened enough since the bet was placed."},{"q":"What if I only want to get my stake back?","a":"Stake original_stake / (hedge_decimal_odds − 1) on the other side instead; this calculator sizes the hedge for equal profit on both outcomes, not for break-even."}],"tags":["hedge bet","hedging calculator","lock in profit","cash out","futures hedge"],"related":[{"calculator_id":"arbitrage-bet","reason":"Same arithmetic for fresh stakes across all outcomes of a market."},{"calculator_id":"odds-converter","reason":"Convert American or fractional prices to the decimal odds used here."},{"calculator_id":"roi","reason":"Return on the total amount staked."}],"links":{"html":"https://tttkmbb.com/gaming/hedge-bet","markdown":"https://tttkmbb.com/gaming/hedge-bet.md","json":"https://tttkmbb.com/gaming/hedge-bet.json","api":"https://tttkmbb.com/api/v1/calculate/hedge-bet","schema":"https://tttkmbb.com/api/v1/calculators/hedge-bet","openapi":"https://tttkmbb.com/openapi.json","mcp":"https://tttkmbb.com/mcp"},"version":"v1","updated_at":"2026-09-24"},"timestamp":"2026-09-24T03:50:44Z","next_actions":[{"tool":"run_calculator","calculator_id":"hedge-bet","reason":"Run Hedge Bet Calculator with the inputs above."}],"links":{"markdown":"https://tttkmbb.com/gaming/hedge-bet.md"}}