South East

Find an Event

Inspired to #TriLikeMe?

Search over 1000 permitted events to find your next challenge!

Social feed

Senior Series 2021

We are pleased to announce details for the Triathlon England South East (TESE) Region Club Senior Series returning in 2021. The race series contains a mixture of last years events not held, alongside BTF Major Events in the South East. 

TESE Senior Series 2021

Date Published: 15th December 2020

Last edit: 5th February 2021

Past Results

We are pleased to announce details for the Triathlon England South East (TESE) Region Club Senior Series for 2021. The series will follow the same format as the 2019 Senior Series. The series retains its age adjustement formula for the overall classification, allowing athletes of all ages to compete on a level playing field. Epsom Triathlon Club remain defending champions from 2019. 

Darford, Bewl and Southwater retain their place in the series from 2020, whilst BTF Major Events at Eastbourne, Worthing and Hever Castle make it onto the program. 

At Eastbourne Triathlon athletes will have the opportunity to represent their clubs in the series at the same time as attempting to qualify for the GB Age-Group Team, with 90% of the bike course closed to traffic. Hever Castle will also provide athletes the opportunity to represent their clubs in the senior series and simultaniously attempt to qualify for a place in the GB Age-Group Duathlon Team. 

At Dartford Triathlon, athletes will benefit from closed roads on a street circuit. New for 2021, Dartford Triathlon will double up as the first ever inter regional finals. The top 3 clubs from the 2019 Senior Series (Epsom, Ocean Lake & Farnham) will compete against the top 3 clubs from the London League to be crowned inter regional champions of the south. 

The 2021 South East Senior Series will serve as a qualifying competition, with the top 3 clubs in this years series being selected for the 2022 Inter Regional finals against London.

For more details see: Inter Regional Finals

The events are:





Eastbourne Standard Distance Triathlon (BTF Major Event)

Sunday 6th June 2021



Dartford Bridge Sprint Triathlon

(Full cancellation entry fee protection)

Sunday 27th June 2021

Doubles up as Inter Regional Final for Epsom, Ocean Lake and Farnham Tri Club vs Top 3 London Clubs

Bewl SprintTriathlon


Sunday 8th August 2021

Southwater Relays

Sunday 5th September 2021

English National Aquathlon Championships Worthing


19th September 2021

Hever Castle Standard Distance Duathlon (BTF Major Event)


Sunday 26th September 2021



How does it work?

  1. Athletes score points for their clubs at 6 races across the south east over the season.

  2. In a given classification, each clubs best 3 events (out of 6) will count towards their final total. 

  3. At the end of the season, prizes are awarded across 5 different classifications.

  4. The winner of the 2021 senior series, is the winner of the ‘Overall Classification’ which combines both genders with results weighed and then adjusted according to age-group. 

What's new for 2021?

  1. 3 BTF Major Events - Eastbourne Triathlon, Worthing Aquathlon and Hever Duathlon

  2. Two races on either fully or mostly closed roads.

What’s on offer?

Athletes who represent their clubs in the TESE Senior Series will score points in the following competitions:

Overall Club Championship – For the club with the fastest mixed gender team after results have been adjusted for age. Winners of the Overall Club Championship gain the title club champions of the south east. 

Best male team – For the club with the outright fastest men’s team.

Best female team – For the club with the outright fastest women’s team.

Best mixed team– For the fastest club when points in the male and female championships are combined.


How does my club enter the Senior Series?

All TESE affiliated clubs can enter the Senior Series by sending an email to containing your club name, club contact details, your name and your position within your club.  

There is no registration fee. Please nominate a club co-ordinator when registering your club and please encourage your triathletes to wear club team kit when racing in the Senior Series, to promote and advertise TESE clubs.


How do individual club members enter the races in the Senior Series?

Members from each club must enter the races as individuals under their club name and pay their own entry fee. Please enter events early to avoid disappointment when they sell-out. Please take care to enter the correct event, as some have more than one distance on offer.

If the club name is not included so it appears on the results, no time will be recorded towards the Senior Series. Please ensure your entry includes your club details before the event. There will be no opportunity to retrospectively add your club after the event and there is no right of appeal if your club name is not shown on the results. Triathletes must be paid up club members and can only race for one TESE club in any calendar year.


What is the scoring system for the Female, Male and Mixed team series?

Female and male results sheets are scored separately. For the female and male competitions, the last placed athlete picks up 1 point, the second last 2 points, and so on all the way up to the winner.

The total points scored by the three highest placed male finishers from each club gives the points scored in the Male classification. The total points scored by the three highest placed female finishers from each club gives the points scored in the Female classification. The winning club in any given classification is the one with the highest score. Introduced in 2019, clubs with less than three triathletes may still score points albeit less than might have been scored with a full team.  

Points towards each competition in the Senior Series will be awarded to clubs after each race, with the first place team scoring 50 points, second place 40 points, and so on as follows:

1st:   50                 11th : 10

2nd :  40               12th : 9

3rd :  32                13th : 8

4th :  26                14th : 7

5th :   22               15th : 6

6th: 20                  16th: 5

7th: 18                   17th: 4

8th: 16                   18th: 3

9th: 14                   19th: 2

10th: 12                 20th: 1

Any clubs below 20th will also score 1 point. 

The Mixed classification is calculated by simply adding points scored in the Male classification to points scored in the Female classification. 

In the event of a tie on points at the end of the Senior Series for any team competition, the winner will be the team which scores the most points at the relay event. If there is still a tie the title will be shared. 

NOTE: The scoring for the Southwater relays will be based on a clubs fastest male relay team and fastest female relay team for the male and female competitions respectively. Mixed relay teams will not score, so make sure you are in a single gendered team to compete in the series. 


What is the scoring system for the Overall Club Championships?

Athletes are classified as belonging to one of 4 age groups, U40 (Senior), 40-49 (Veteran), 50-59 (Super Veteran), 60+ (Vintage).

Athlete’s times are adjusted according to an age-weighting. Athlete’s times (in seconds) are multiplied by the age-weighting of their age-group for the male and female results separately. Result sheets are then reordered to produce age-adjusted results, with more senior athletes advancing up the table to varying degrees based on age-group.

The age-weightings for the 2021 series are unchanged and as follows:


















As before, the last placed athlete is assigned one point, the second last two points and so on up to the age-adjusted winner. 50 points will be assigned to the winning male team and 50 points to the winning female team and so on as previously described. Finally, male and female points are added together. Thus the maximum score from any event in the overall championship is 100 (with the exception of the bonus points event).

NOTE: The age-weighting applied to vets teams at the Southwater Relays will be half way between the 40-49 age-weighting and the 50-59 age-weighting for each gender.


How did you calculate the age-weighting?

We analysed results from the past four years of age-group sprint distance triathlon World and European championships. Age-weightings were calculated by dividing the mean time of the top 5 athletes in the U40 category by the mean time of the top 5 athletes in each age-group, averaged across 16 internationals (8 male, 8 female). The age-weighting is a best estimate of how ageing impacts performance in age-group triathlon, and provides the basis for times to be adjusted accordingly.

If you love the numbers, a full excel spreadsheet is available here: weighting-function.xlsx


Results and Senior Series standings

Senior Series rankings will be published on the Triathlon England South East Senior Series facebook page after each race. 

In the event of any disputes, the TESE committee’s decision will be final.

If you have any questions regarding South East Senior Series or wish to join, please contact David Pearson at or send a message through the facebook page. 

We hope you will enjoy representing your club in the Senior Series and welcome any feedback.

Thanks to our Partners

Join Us

And enjoy insurance benefits, race licensing and more...