50th Anniversary 5km Time Trial & Progressive Run Challenge

50TH ANNIVERSARY 5KM TIME TRIAL CHALLENGE

Every MR25 member earns their place in the club by meeting the legendary 5KM Time Trial 25-minute standard. To honour this tradition, we invite all members to take on the MR25 5KM Time Trial Challenge again —a true test of speed, resilience, and competitive spirit!

Six Time Trials will be held between August 2025 and June 2026, giving members multiple chances to push their limits.

Those who complete all six trials within the minimum standard will receive the prestigious 🏃‍♂️ Special MR25 50th Anniversary 5KM Time Trial Finisher Award 🏃‍♀️

To promote equity across all age groups, the minimum standard will be based on 50% of the Age-Graded Performance Index, acknowledging the natural effects of aging—because this club celebrates runners from every generation!

A sample of the 50% Age-Graded 5KM Standards (Time in min:sec)

🏆 THE WINNERS’ LEADERBOARD 🏆

To raise the stakes, a Leaderboard will track the best index scores from any of the six Time Trials. The top 10 performers will receive the Special MR25 50th Anniversary 5KM Time Trial Challenge Winners Award.

This format accommodates members who miss one or more trials by allowing them to remain in the time trial competition. In the event of a tie, the participants’ second-best API scores will be used as the tiebreaker.

50TH ANNIVERSARY PROGRESSIVE RUN CHALLENGE

Besides the 5KM Time Trial, the Progressive Run has also been a cornerstone of MR25. In tribute to this tradition, we present the MR25 50th Anniversary Progressive Run Challenge—an endurance journey designed to build stamina, strength and perseverance.

Members must complete six Progressive Runs between September 2025 and July 2026, across the following distances:

 Sep: 30KM | Nov: 35KM | Jan: 10KM | Mar: 15KM | May: 20KM | Jul: 25KM

Successfully finish all six within the stipulated time to earn the 🏃‍♂️ Special MR25 50th Anniversary Progressive Run Finisher Award 🏃‍♀️

The cut-off times for the six distances are as follows:

But the challenge doesn’t stop there!

🏆 THE WINNERS’ LEADERBOARD 🏆

For those eyeing the podium, finishing positions in any four of the six Progressive Runs will be scored as follows: 1st place = 1 point, 2nd place = 2 points, and so on, up to 30 points for 30th place. The 10 participants with the lowest total scores will receive the Special MR25 50th Anniversary Progressive Run Challenge Winners Award.

This challenge also offers members who miss one or more runs the chance to remain competitive. In the event of a tie, head-to-head finish times among tied participants will be used to determine the final rankings.

Participation Procedure:

All MR25 members are automatically eligible for the competition—no separate registration is required. Simply sign up for the Time Trials (TT) and Progressive Runs (PR) to be included in the challenge.

In line with NParks regulations, if more than 30 participants register for any TT or PR session, the organizers will contact selected individuals to arrange an additional session outside the usual Sunday slot. We kindly ask all who register to make every effort to attend, to minimize inconvenience and ensure others are not denied opportunities.

Eligibility is limited to MR25 members with active membership status – valid and current paid subscription – at the time of the event. Ordinary members are encouraged to renew their subscriptions ahead of time to maintain eligibility and support effective planning by the organizers.

While prizes will be awarded, this initiative is primarily a fun and inclusive effort by the Management Committee to encourage member participation, foster friendships, and celebrate our 50th anniversary. We warmly invite all members to join in the spirit of camaraderie and sportsmanship.

The organizing committee reserves the right to interpret the rules and make final decisions on any matters not explicitly covered in the competition guidelines.

Age-Graded Performance Index – Jun 2025

MR25 5km Time Trial Age-graded Performance Index (API) Leaderboard – June 2025

New 5KM Time Trial API Leaderboard Update!

Here is the latest update:






For runners not aware, our club introduced this 5km Age-graded Performance Index Leaderboard from June 2023 5km Time Trial to generate some fun and friendly competitions among participants of our bimonthly 5km Time Trial.

The index accounts for age and gender differences using internationally recognised performance standards — enabling runners of all ages and genders to compete on a more level playing field and enjoy the challenge together.

Join us to see where you stand!

MR25 Ultramarathon 2025

2025 MR25 ULTRAMARATHON EVENT INFO & REGISTRATION

MR25 is proud to present the 2025 edition of its iconic Ultramarathon. Join us for this unforgettable dawn-to-dusk challenge along the scenic trails of MacRitchie Reservoir!

PARTICIPANT ENTITLEMENTS
  • An event singlet for all participants.
  • A FINISHER T-shirt and a bottle of Nature’s Best SuperActiv T2 Collagen (60 caps) upon completing 5 loops in a single day (7am to 7pm) during the Qualifying Race from 1 June 2025 to 30 November 2025.

(Collection Date/Time/Venue: 2 November (8am to 10am) and 28 December 2025 (7am to 7pm) at a venue that will be announced later. One representative can collect on behalf of a few runners. Bring screenshot(s) of confirmation email)

EVENT CATEGORIES & REGISTRATION FEES

Early Bird (last day on 31 August 2025):
(a) Men’s Closed (MR25 members) – $40
(b) Women’s Closed (MR25 members) – $40
(c) Men’s Open (non-members) – $70
(d) Women’s Open (non-members) – $70

Late Registration (1 September – 30 November 2025):
(a) Men’s Closed (MR25 members) – $70
(b) Women’s Closed (MR25 members) – $70
(c) Men’s Open (non-members) – $110
(d) Women’s Open (non-members) – $110

PAYMENT MODE
  • PayNow to MR25 UEN: S76SS0057HUOB
  • Bank Transfer to UOB: 3533109673
PRIZES FOR FINALISTS*

RACE RULES & REGULATIONS

(I) Qualifying Race (1 June to 30 November 2025 – Virtual):

Complete most number of 10.5km loops (anti-clockwise) at MacRitchie from 1 June to 30 November 2025 from 7am to 7pm along a designated race route^ at MacRitchie Reservoir. Results are based on the best attempt during the period in a single day and will be ranked based on the following criteria (in order of priority):

  1. Number of 10.5 km loops completed (more loops ranked higher)
  2. Attempt date (earlier date attempts ranked higher)
  3. Time taken (faster elapsed time ranked higher) – i.e., start of first run to end of last run
  • Race is self-supported.
  • Unlimited attempts on any day during the qualifying race period.
  • Start of run must only start at/after 7am and last run must end before 7pm.
  • Complete 5 or more loops to achieve ‘FINISHER’ status.
  • Results of Strava^ must be submitted by 2359hrs on the day of attempt based on google forms submission (late uploads will not be processed).
  • Leaderboard will be updated weekly from 1 June to 30 November 2025 and be posted by 2359hrs on the following Wednesday.

The top 6 participants from each category will advance to the Finals, where they will join a select group of invited guests and participants, making up a total of no more than 30 finalists. In the event of insufficient qualifiers in any category, the Organizing Committee reserves the right to select from among the eligible participants. Finalists will be notified by email by 10 December 2025 (race location and route of the Finals will be disclosed).

(^Details on the designated route, rules and instructions for the uploading results via Strava will be sent to you after registration. For your safety as well as the safety of other visitors, please refrain from running while on the boardwalk)

(II) Finals (28 December 2025, Sunday – Physical):

  • Race timing from 7am to 7pm (first loop must be on/after 7am and last loop must complete before 7pm).
  • Participants to complete most number of loops along the designated race route^ in the quickest time.
  • To be considered a ‘Finisher’ in the finals, participants must complete at least 5 loops.

The Organizing Committee reserves the right to judge and make final decisions on any aspects of the rules not explicitly outlined in the event information and registration form.  

For queries, contact us at: ask@mr25.org.sg

Link to registration form: https://docs.google.com/forms/d/e/1FAIpQLSeqEqASVBW5UzaEMMe5f_pI4tS8zgvapQvopRq4Fe0AnxXuRQ/viewform

Age-Graded Performance Index – Apr 2025

MR25 5km Time Trial Age-graded Performance Index (API) Leaderboard – April 2025

New 5KM Time Trial API Leaderboard Update!

With the April 5KM Time Trial now completed, we have wrapped up two full cycles of the MR25 Age-Graded Performance Index Leaderboard, first introduced in June 2023 — that’s 12 time trials and over 200 entries!

We are excited to unveil the latest update, which now features separate leaderboards for the 5KM and 4.8KM Time Trial courses. This change reflects the growing size of the leaderboard and introduces a route-independent ranking system that accounts for the slight differences in distance and layout between our standard men’s 5KM and women’s 4.8KM routes.

Here is the latest update:




For runners not aware, our club introduced this 5km Age-graded Performance Index Leaderboard from June 2023 5km Time Trial to generate some fun and friendly competitions among participants of our bimonthly 5km Time Trial.

The index accounts for age and gender differences using internationally recognised performance standards — enabling runners of all ages and genders to compete on a more level playing field and enjoy the challenge together.

Join us to see where you stand!

20KM Progressive Run – 4th May 2025

We greatly appreciate our sponsors Key Power Sports and Pocari Sweat Singapore for helping keep our runners fresh and well-hydrated for the run!

Thank you to all our dedicated volunteers and members for your strong support in making this yet another successful Progressive Run in our calendar!

Results from MR25 PR 20KM – 4 May 2025

4 May 20KM Progressive Run Photo Album 1
5 May 20KM Progressive Run Photo Album 2