They raced under Dublin St Bridge and then up to the Railway Bridge, before looping back downstream and coming to City Bridge, past the spectators at the River Traders Market, and reaching the finishing line shortly afterwards.
Nossiter and Coll were chasing hard but Brooke had the edge on the group of three.
With Nossiter's regular New Zealand partner Max Brown away attending Victoria University and having quickly formed a successful partnership with Mana's Kurtis Imrie, Nossiter may well form a K2 combination with Brooke after both were part of K4 crews at their respective world championships in Hungary in July.
The fun race for the River Challenge was the 200m 'Plastic Fantastic', which brought in an interesting fleet of four two-person row boats, two three-person crews, and two individual kayaks.
Some craft looked like they had a bit of character, read old, but they all proved seaworthy and when it was said and done, 14-year-old Liam Lace took the 'Wavehopper' K1 craft to victory.
Next for the multisport club will be the first race of the Aquathon Summer Series on November 18, followed by the 5 One 5 Triathlon on Nov 22.