Posted: 06/08/2015 at 13:31
Do some brick sessions. I never felt the need to do swim-to-cycle sessions, but the cycle-to-run sessions really helped. I did Windsor Olympic this year. I did a sprint at Hever last year which is, by comparison, quite hilly.
I have a strong distance running record, I only really cycle about once a week in the season, I open water swim all year round.
Where I struggled was the last 5k of the run, surprisingly. Everything else was a breeze.
If you're going for as fast a time as possible, do more bike work as it's where you'll realise the most gains, and chuck in loads of hills. That'll help.
Look forward to hearing all about it!