David,
The “proper” way is to request a regatta page here: http://raceqs.com/pro-regatta-broadcast/
And enter all the “events” separately. For example:
2016-04-30 09:00 – 12:00
2016-05-01 09:00 – 12:00
You’ve entered 2016-04-30 09:00 – 2016-05-01 12:00 which means “one long (overnight) race”.
We obviously need to make our UI more intuitive.