Allan Caird also stood on top of the dais by winning the Tane 60-64 category in five hours, 12 minutes.
In the Wahine (female) events, club newcomer Waitohu Ngarewa took out the 18-24 age group event in six hours, eight minutes.
Competing in two of the bigger Tane sections, regular ironman athletes Jason Page and Adam Holmes were the fastest Wanganui locals on the day with both finishing runnerup in their divisions with personal best times.
Page's time of four hours, 37 minutes, with Holmes just four minutes behind him, meant they were also in the top 10 of all the individual competitors.
On his comeback from injury, Gareth Wright finished fifth in Tane 30-34 in four hours, 49 minutes.
In the team events, Wanganui's Livi Wright, Catherine Page and Melina Holmes combined in the to finish fifth in six hours flat.
Whanganui Multisport Club member results:
Wahine 18-24: 1. Waitohu Ngarewa, 6:08. Wahine Teams: 5. Livi Wright, Catherine Page, Melina Holmes, 6:00.
Tane 30-34: 5. Gareth Wright (21st overall), 4:59; Tane 35-39: 2. Adam Holmes (8th overall) 4:41; Tane 40-44: 2. Jason Page (6th overall), 4:37; Tane 60-64: 1. Allan Caird, 5:12; Tane 70+: 1. Tony Fantham, 7:42.