The organisers of newly-unveiled Challenge Weymouth are aiming to attract 1,500 entries in its first year, after being "absolutely staggered" by public response to the new location.
Alan Rose, Managing Director of Just Racing UK, told 220 Triathlon earlier today that he hopes to get the route signed off by the end of year, and expects it to involve some closed or partially-closed roads.
"We are pretty confident that it is going to be a two-lap bike course, rather than an 'out-and-back' route," he added.
Asked for comment on the decision to leave Henley after strong opposition from the local MP and mayor, Rose said he is "disappointed" it didn't work out, but that an event of this size needs local support.
"We are doing the right thing in moving somewhere else, and I have to say that in the discussions we have had with the tourist and event groups in Weymouth, they just get it."