This calculator is only for Horse racing bet? or can also be used in other sports?
It's useful for any sport where you want to bet on more than one outcome in the same market.
I use it for NASCAR betting mostly.
If I want to bet on 3 cars, so that if any of them win I will win the same amount of profit, a Dutching Calculator will tell me how much to bet on each.
EG
If I want to risk a total of $100 it would tell me
Kyle Busch +600 - Bet $49.16 to Return $344.26
Kevin Harvick +900 - Bet $34.43 to Return $344.26
Ryan Newman +2000 - Bet $16.39 to Return $344.26
Which will give you $244.26 clear profit no matter which one wins.
Another use is comparing a group prop bet to their straight odds to see which way to bet is better value.
In golf you might see a prop for either Tiger Woods or Phil Mickelson or Rory McIlroy win the US Open +1500
And their straight odds are Tiger +2500. Phil +4000 & Rory +7000
Are you better off to bet the prop or all three as straight bets?
A dutching calculator will tell you that if you "dutched" those three as straight win odds it would only payout +1199
So the prop offer is better value.