Break-even win rate API

Computes the long-run break-even win rate for a bet at given odds (American or decimal) and, with a stated true win probability, the edge over break-even and a +EV flag. Answers 'What win rate do I need to break even at -110?', 'How much edge over break-even do I have?'.

Price$0.02per request

MethodPOST

Route/v1/sports/breakeven-winrate

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

sportsbettingbreak-evenwin-rateedgeimplied-probabilityvalueoddsev

API URLhttps://x402.hexl.dev/v1/sports/breakeven-winrate

Integration docs

Example request

{
  "american": -110,
  "trueWinProbability": 0.55
}

Example response

{
  "decimal": 1.909091,
  "breakEvenWinRate": 0.52381,
  "breakEvenWinRatePct": 52.381,
  "riskToWinOne": 1.1,
  "formula": "breakEven = 1/decimal",
  "trueWinProbability": 0.55,
  "edgeOverBreakEven": 0.02619,
  "edgePct": 2.619,
  "positiveEv": true
}

Input schema

{
  "type": "object",
  "required": [],
  "properties": {
    "american": {
      "type": "number",
      "examples": [
        -110
      ]
    },
    "decimal": {
      "type": "number",
      "examples": [
        2
      ]
    },
    "trueWinProbability": {
      "type": "number",
      "examples": [
        0.55
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}