It would be awesome to have this option. Right now, we have to use a workaround, which is a bit inconvenient. There's already a manual reset option, so having it automated would save a lot of hassle.
If you're concerned about too many bets being placed simultaneously during horse races when everything happens so fast, the 'Number of Place Bet Triggers' condition can prevent that from happening. Check out the workaround discussed here: viewtopic.php?t=29228.
What do you think?