SPORTS BETTING MATH
BONUS CONVERSION & RETENTION OPTIMIZER

Free Bet & Matched Betting Conversion Calculator

Two bookmaker back bets on complementary outcomes with identical settlement. Exchange lay liability and commission are not modelled; fees, rounding, voids and bonus restrictions can change the cash result.

Bonus Parameters & Market Odds

$

Illustrative Bonus Scenario

Assumed bonus credit: 500% of deposit; illustrative transfer: 5% of the deposit per qualifying bet, with odds 3.00 as a scenario condition. These are fixed model inputs, not verified terms of any operator offer.

First Deposit ($) $200
Scenario Bonus Credit (500%)
+$1,000.00
Cash Transfer per Winning Bet (5%)
+$10 / $200 bet

Guaranteed Cash Conversion

76.9% RETENTION

Two bookmaker back bets on complementary outcomes with identical settlement. Exchange lay liability and commission are not modelled; fees, rounding, voids and bonus restrictions can change the cash result.

Guaranteed Cash Extracted
$76.92
Cash Retention Rate (% of Free Bet)
76.92%
Required Hedge Stake:
$269.23
Place at Bookmaker B @ 1.30
Out-of-Pocket Hedge Cash Required:
$269.23
Cash needed at Bookmaker B
The calculated retention is at least 75% for these inputs. It is not guaranteed by the free bet odds alone.

Frequently Asked Questions (FAQ)

What is a Stake Not Returned (SNR) free bet?

SNR means the free bet stake is not returned with winnings. A hypothetical $50 SNR token at odds 3.00 pays $100 if it wins, not $150. Check the specific promotion: SR and SNR are different settlement rules.

How do you extract guaranteed cash from a free bet?

Two bookmaker back bets on complementary outcomes with identical settlement. Exchange lay liability and commission are not modelled; fees, rounding, voids and bonus restrictions can change the cash result.

What is the formula for the optimal SNR hedge stake?

For an SNR free bet of value F at bookmaker odds O_A, hedged at opposite odds O_B, the optimal hedge stake is: Hedge Stake = (F × (O_A - 1)) / O_B. The guaranteed cash profit extracted is Hedge Stake × (O_B - 1) or F × (O_A - 1) - Hedge Stake.

Why do higher odds increase free bet conversion efficiency?

SNR retention = (O_A - 1)(O_B - 1)/O_B. At O_A=3.5 and O_B=1.4 it is 71.43%; a higher free bet price alone does not ensure 75%.

What is a good conversion rate for a sports free bet?

There is no universal conversion percentage. Compare the calculated cash amount, required hedge cash, prices and the applicable bonus terms.

What assumptions does the bonus scenario use?

The scenario assumes bonus credit equal to 500% of the deposit and an illustrative qualifying stake equal to that deposit. Its transfer amount is 5% of that stake, with odds 3.00 as a stated scenario condition. These fixed assumptions do not verify any current operator promotion, wagering progress, eligibility or withdrawal. Read the actual offer terms separately.