Emerald Timestamp is a great app for capturing your finish time and even those of other boats finishing ahead or behind you. Synced to atomic clocks.
https://itunes.apple.com/us/app/emerald-timestamp/id371935298?mt=8
Very interesting...
But, if everyone would use Race Qs, it is very easy to identify when boats finish. And, who is in front and behind.
it puts the exact time in an easy to access place. with the push of a button you can save it if you like so you do not have to write it down. Also pretty useful for a time split with a competitor for races where that is useful.