Alex Yee’s epic Valencia marathon run saw him record a blistering average pace of 3:01min/km
British triathlete Alex Yee put in a blistering performance in Valencia, knocking minutes off his own PB to become the second-fastest British man of all time over the 26.2 mile distance.
It looks like Alex Yee’s triathlon training is paying off in more ways than one. The Olympian has clocked a time of 2:06:38 in the Valencia marathon, which puts him second of all time in the British men’s rankings.
Overall Alex Yee took seventh place in the race which was won by John Korir (2:02:24). He has also knocked four minutes off his own marathon PB (2:11:08) which he ran on his London Marathon debut earlier in the year.
That new time puts Yee second behind Sir Mo Farah, who has the British men’s record and a marathon PB of 2:05:11.
Insight from Coros gave the following insight:
- His pacing was metronomic throughout the first half, only varying outside of his average pace of 3:01/km by 5 seconds for any KM split.
- This actually continued, right the way through to 40km, locking into the pace religiously. His biggest drops in Pace came during his final push to the line! During this push his final 400m were a mindblowing 64 seconds, which is the same pace as his 5,000m PB!
- His pacing was a masterclass in energy preservation and you see that in his Avg HR, which remained mid 160bpm range for the entire first half, only drifting as the heat rose and distance racked up. Which, even in those moments, as things got tough, showed that Alex wasn’t phased and he stayed to the task, maintaining a sub 170pm avg for the duration of the race.
Pre race training:
Alex achieved his biggest mileage week around 4 weeks prior topping out at over 170km, with an additional 250km on the bike for good measure. Which totalled a staggering 20 hours across those two disciplines alone for that week. Not counting strengthwork and other aspects of his training.
Image: Alex Yee of Team Great Britain competes during the Men’s 2025 TCS London Marathon on April 27, 2025 in London, England. (Photo by Getty Images/Getty Images)
Helen Webster
Editor, 220 Triathlon 
