Mr Goldsworthy said the winds were an issue for some of the ducks which got blown off course.
As it was he had colleague Mike Bates working for hours in his workshop adding screws to the bottom of the ducks to provide ballast and keep them upright. Pre-race tests showed the ducks had a tendency to topple onto their sides.
Next year he said more ducks will be available and he's also devising plans to keep the tiny flotilla to the centre of the river. That will make it easier both for spectators and certainly for the race organisers.
After the event he and his team of helpers spent about two and-a-half hours retrieving the little ducks from the river bank.