Race three of the Portsmouth Duathlon Series promises to be a thriller on Sunday.
Patryk Huczkowski is on course to take overall victory once again.
The Portsmouth athlete has an advantage of more than seven minutes on second-placed Stephen Barnett.
Huczkowski won the series last summer and his consistent performances have continued in 2014.
He took second place in the opener and third spot in race two.
Race one was won by Tom Higgins but he did not compete in the second event.
In his absence, Andrew Waddington took the victory, with Simon Johnson second.
Alison Wilson has won both the women’s races.
The course for race three is different to the previous two, with some technical twists and turns along the way.
After the first run, the athletes have to cross over to Hayling Island on the ferry, before starting the cycle leg.
Then they cycle back to the race headquarters before the final 5k run.
Strong winds are forecast for Sunday, just to add to the challenge.
Organiser Rob Piggott said: ‘The wind is on order! It will be quite interesting but at least it will be pushing the runners to a quick finish.’
The race starts at the Portsmouth Lifeboat station on Ferry Road (8am).
Anyone who wants to enter on the day should head down between 7am and 7.30am.
Portsmouth company Kendall have helped to get the area in top condition in time for the event after the storms.