Strange happenings with odds matched

One of the possibilites withdrawn?

Was it a horse race with a non-runner removed after you placed your bet?

Nah, the horse I bet on actually won the race. So instead of getting 7.4 what I originally matched, my payout was based on the new odds of 5.1 that I had no control over.

Really weird. I'll have to look into it more.

Another runner will have been withdrawn and it is called the adjustment factor. It phased me when I first started this betting lark but it is all part of the game.

It's called the reduction factor. As we have all said, one of the possibilities was withdrawn.

------------------------------------------------------

Reduction Factor

For our horseracing markets we guard against possible non-runners with a system of Reduction Factors (similar to Rule 4 with traditional bookmakers). Each horse is allocated a Reduction Factor, based on its likely chance of winning the race. Should a horse be declared a non-runner, the Reduction Factor will be applied to the prices of all matched bets, for both backers and layers.

This is to ensure that layers are not unfairly treated and exposed to large liabilities when the chances of other horses winning have improved. The Reduction Factors are designed to be fair to both backers and layers.

It was on the tip of my tongue. ;)

muppet