Technical Officials (TOs) play an important role in ensuring that all events are fairly and safely conducted giving participants the best race experience. As such, the knowledge & experiences of TOs are the main qualities TOs at any level must possess.


Community Level 1: An understanding of triathlon and the roles and responsibilities of a Technical Official (TO) Introduction of ITU Competition Rules.

Community Level 2: An advance level training of TOs and also taking a higher TO role with greater responsibility.

National Technical Official Level 1 (NTO): Becoming an internationally-recognised TO which allows you to represent Singapore to officiate in overseas events by ITU.

Please click below for more details for

CTO (Level 2) & ITO (Level 3):
TAS TOs Certification Program Guide

Mentorship Programme

Triathlon Association of Singapore (TAS) has in place a comprehensive grading system and programme which includes courses and many opportunities to officiate at events to ensure that the TOs constantly upgrade their skills.

With effect from 2013, TAS implemented a Mentorship Programme where a senior TO is attached to a group of junior TOs and acts as their mentor and to supervise them. This allows the senior TOs to share their experience and for the junior TOs to be guided along their officiating journey and allows them to stay bonded with each another.

Benefits & Welfare

Free Education and Training

Local & Overseas officiating experiences

Opportunity to develop internationally


Register your interest with us by contacting the TO Manager, email to omar@triathlonsingapore.org or call +65 62277577.

Check out more details at Courses & Activities under the Technical Official page on the website.

Triathlon Association of Singapore hopes to hear from you for our next Technical Official course!


I started with Triathlon as a Body Marker Volunteer. I was tasked to stamp the numbers on the athletes’ arms and legs according to their bib number. Little did I know that doing such a small task is important and crucial because a technical official came to us and said that the inks need to be clear. I was intrigued and jumped upon the opportunity to become a TO. Now that I have completed Community Level 2, I have learnt that many aspects of the race might seem small but it all plays its own parts. I am also a strong believer of educating athletes, especially local and age groupers. We should not penalize them for every mistake they make but instead educate them. This way, they will not only learn, it will also not extinguish their interest and passion of triathlon, especially if they just picked it up.

Muhammad Nabil Bin Noor Mohamed
Technical Official Community Level 2

I started joining Triathlon Association of Singapore as a Technical Official in 2010 after volunteering for Youth Olympic Games. Since then, I learned things from only knowing Triathlon as a sport where athletes does swim bike run at a time. Till today, I officiated in different roles for different races and different countries. I was given the chance under the Self-Fund Program. Through this scheme, I officiated twice in Cheng Du, China as well as Palembang in Indonesia. I learned to work with people from different culture and background. We shared knowledge and experience from one another. All these encouraged me to strive on as a TO.

Ong Si Ying
ITU National Technical Official

After attending the ITU Level 2 Technical Official Course in 2010, I gained in-depth knowledge on the technical operations of a triathlon event/course (Swim, Transition, Bike, Run and etc). This knowledge was invaluable in giving me a good understanding of the technical aspects to help ensure that triathlons can be a safe and fair sport for everyone. The exposure to overseas events served as a great platform to make friends and pick up best practices from triathlon enthusiasts from all over the world. Besides, it is also a great honor to be able to represent Singapore in a major sporting event. I definitely encourage more youths to take an interest in becoming a technical official.

Edwin Shi Dalun
ITU Continental Technical Official