Jekyll and Hyde Park Hallowe'en Duathlon

There will be no Jekyll & Hyde Duathlon in 2018. We will be back with a new race in 2019. Further information.

Jekyll & Hyde bat logo Central London's duathlon - 2019 date tbc

One of only a handful of BTF two star events. 


DB Max logo

DB Max are once again providing chip timing

Live tracking and results (optimised for mobile phones) will be available in real time throughout the race.

Results on DBmax website - including full splits with bike laps and YouTube videos of each athlete crossing the finish line - just click the athlete's name for details.

2017 results on this website 

Earlier results

These are all available online on this website.

Important note to Serpentine members

This race is your chance to give something back to your club and to London's multisporters, so our members are not allowed to enter the race. We really want you to volunteer to help (all volunteers will receive a race memento as a thank you), except in the following circumstances:

  • You are one of our faster multisporters. This is a London League race and we really want to encourage you to turn out for your club. Men, women and 40+ all count to the points total. How fast is fast? Men should be capable of a 2:15 Olympic distance triathlon, women and vets 2:30. 
  • You already contribute a lot to the club with a proven track record of volunteering.

In each case you must apply to the race director before registering.

Contact details

Race Secretary

BFT Event Mark Level Two 
For more information on the BTF and becoming
a member visit:

Royal Parks