Snell, from Ashhurst but riding out of the Whanganui club, posted as exceptional time given the younger Bevan Cheatley's 4.17.53 and overall 142nd placing.
Laurence Sunde, the oldest at 74, clocked 5.30.23.
Johnny Black, posting the most rides in the event by a Whanganui rider with 25 now under his belt, became a Diamond Cadence member giving him free entry forever. He covered the course in 4.58.14 for third in the 70+ age group.
Brian Scott had one of the rides of the day. Getting better with age the longtime competitor stopped the clock at 4.45.42 in 60-69 age group. Scott is in training for 2018 Ironman.
Hunter Gibson finished third in U18 on the quarter Lake course, while Whanganui prison officer Marsh Tangaroa did the Enduro (2 laps) in 15.52.13.
Thirty of the 6000 riders hailed from Whanganui.