Tool 01
Fairness Checker
Enter the same bet's decimal odds from two different sources. Fairdeal Betting shows you which is better value, the margin gap in implied probability, and a relative fairness score — with the maths in the open.
Your two prices
Decimal odds for the same outcome.
₹
Used to show the extra profit on a winning bet.
Fairness readout
Updates as you type.
The maths, in the open
# implied probability of a decimal odd
implied% = 100 / odds
# the fairer price is the higher decimal odd
value_gap% = (best − worst) / worst × 100
# relative fairness of the worse line (best = 100)
fairness = worst / best × 100
Higher decimal odds return more for the same outcome, so they imply a lower probability and carry less margin against you. The fairness score is relative to the better of the two prices you enter.
How to use it well
- Always compare the same market and selection — e.g. the same team to win the same match.
- Use decimal odds (e.g. 1.90, 2.50). Convert fractional odds first if needed.
- A small percentage gap adds up fast across many bets — that's the point of shopping for value.
This tool is for information and education only. It does not predict outcomes, guarantee returns, or constitute betting or financial advice. Odds do not tell you who will win — only the price on offer.