Block Bet Calculator
Calculate Block bet returns — all possible combinations from doubles upwards from 9+ selections.
Betting Calculator
Odds Format
Bet Type
Block
Each Way?
Selections
Show Rule 4?
Include Exchange Commission
#
Outcome
Odds
1
2
3
4
5
6
7
8
9
Stake
Stake
$
Betting Summary & Returns
Total Outlay
$5020.00
Total Return
$196640.00
Total Profit
+$191620.00
Bet TypeBlock
Number of Bets502
Selections9
Stake Per Bet$10.00
Calculations are estimates and exclude bookmaker-specific bonuses.
Quick Reference: Odds Formats
Decimal
Total return per unit staked, including your stake. 2.50 returns $2.50 on a $1 bet.
Fractional
Profit relative to stake. 3/2 means $3 profit for every $2 staked, plus your stake back.
American
Positive shows profit on a $100 stake; negative shows the stake needed to win $100.
What is a Block Bet?
A Block bet creates every possible combination from doubles upwards across 9 or more selections. It is essentially a full cover bet without singles. The number of bets grows exponentially with selections.
How Many Bets?
For N selections, the total bets = 2^N − N − 1 (all combinations minus singles minus the empty set):
- 9 selections: 502 bets
- 10 selections: 1,013 bets
- 12 selections: 4,083 bets
Block vs Full Cover with Singles
A Block excludes singles — at least 2 of your selections must win for any return. Adding singles would give a “Block with Singles” or equivalently, every possible bet from N selections.
Example
$1 Block from 9 selections at 2.00 (total stake: $502):
- If all 9 win: Combined returns exceed $50,000
- If 5 win: Returns from winning doubles, trebles, four-folds, and one five-fold — potentially profitable depending on odds
- If 2 win: 1 winning double = $4 — heavy net loss