IRONMAN 70.3 Weymouth results: Derrett and Weston take overall wins

Chief Correspondent

After a year away, IRONMAN 70.3 Weymouth was back on the schedule today for its fifth edition at the popular seaside destination in Dorset. Even the weather was wonderful.

As with IRONMAN 70.3 Staffordshire earlier in the year, it was an Age-Group only event this year, allowing some of Britain’s best amateur athletes to take the headlines.

Gun-to-tape for Rosie Weston

Rosie Weston, an impressive performer already this year at the Outlaw Half Nottingham and Outlaw Half Holkham, was the quickest swimmer of the day – and never headed – on the way to a significant winning margin of more than 12 minutes. She’ll be using that speed next year, as she moves up to race in the Pro ranks.

“I felt good on the swim, the bike was tough and I started to lag towards the end of the run but the crowds kept me going. When you’re struggling the volunteer and crowd cheers keep you going!”

IRONMAN 70.3 Weymouth 2021 / Rosie Weston
Photo Credit: Getty for The IRONMAN Group

Ecstatic Derrett fights for victory

Men’s winner Stephen Derrett was more than two minutes slower in the water than Alex Woodman (who would go on to finish second), but as they headed out onto the run, there were separated by just seconds. A 1:20:41 run, held off Alex (1:22:27), but the duo maintained their T2 positions to the finish line.

Consistency counted for Derrett. He didn’t set the quickest time split in any of the disciplines, but was still almost two minutes clear at the finish line. A reminder if it’s needed, that triathlon is one sport.

“I’m absolutely ecstatic, I fought so hard. I was in the lead at the start of the run, and I knew there were faster runners behind me, so I really went for it! The bike is my strongest discipline and once I got first place as I arrived at transition of the bike, I wasn’t letting it go!” 


IRONMAN 70.3 Weymouth results 2021

Sunday September 19, 2021
1.9km / 90km / 21.1km (Age-Group only event)


  1. Stephen Derrett – 4:12:47
  2. Alex Woodman – 4:14:43
  3. Alexander Jones – 4:15:51
  4. Felix Wernham – 4:21:11
  5. Toby Fernandez – 4:22:44


  1. Rosie Weston – 4:41:41
  2. Annie Ewing – 4:54:02
  3. Kate MacTear – 4:55:36
  4. Lucy Mapp – 4:58:27
  5. Isabel Davis – 4:58:39
IRONMAN 70.3 Weymouth 2021
Photo Credit: Getty for The IRONMAN Group
John Levison
Written by
John Levison
Latest News
Gustav Iden on the run at WTCS Abu Dhabi 2023
Gustav Iden pens beautiful tribute after his mother loses her brave battle against cancer
Alex Yee & Alistair Brownlee
Is Alex Yee the heir to Alistair Brownlee’s throne? Inside the insane WTCS Cagliari numbers
Will McCloy
Raising triathlon’s broadcast standard: Will McCloy and Sub7Sub8
Leo Bergere finishes third at WTCS Cagliari
World Champion Léo Bergere beats ‘weird’ sensation to make podium return in Cagliari
IRONMAN Brazil 2023: Taccone and Oliveira win in Florianópolis