The Role of the Official Observer in Marathon Swimming

Marathon swimming relies on trust, transparency and integrity. At the centre of this integrity is the Official Observer, an independent individual responsible for documenting and verifying that a swim has been conducted in accordance with the declared rules.

Why the Observer Matters

An observer provides independent verification of a swim attempt. Without impartial documentation, a swim remains an unverified claim. The observer ensures that:

  • The swim follows the declared rules (unassisted or assisted).

  • The correct start and finish points are used.

  • No unauthorised assistance is provided.

  • Environmental conditions and feeding protocols are recorded accurately.

  • GPS data and timing evidence are properly captured.

This process protects both the swimmer and the sport. It ensures fairness, preserves historical accuracy, and maintains the credibility of recognised marathon swims.

Core Responsibilities of an Observer

The role requires attentiveness, integrity and attention to detail. Key responsibilities typically include:

Pre-Swim

  • Confirm independence (not a close relative, partner, or conflicted party).

  • Review and understand the declared swim rules.

  • Read the rules aloud to the swimmer and crew prior to the start.

  • Confirm documentation processes (GPS tracking, photos, video, log sheets).

During the Swim

Observers maintain a detailed log, typically at least every hour, including:

  • Time and GPS position

  • Water and air temperature

  • Wind and sea/river conditions

  • Feed times and method

  • Swimmer stroke rate and general condition

These records form the official evidence base for any ratification process.

Start and Finish Verification

Observers must clearly document:

  • The exact start (including time, location, and confirmation of no assistance).

  • The exact finish (clear land contact or declared finish criteria).

  • Continuous or complete GPS tracking.

  • Supporting photographic and/or video evidence.

Post-Swim Reporting

Following the swim, the observer compiles and submits a formal report including:

  • Completed log sheets

  • GPS files

  • Photos and video documentation

  • Confirmation of rule compliance or note of any irregularities

Independence and Integrity

The observer must remain impartial throughout the swim. They are not:

  • A crew member responsible for feeding

  • The boat pilot or navigator

  • A close family member or direct beneficiary of the swim outcome

Maintaining separation of roles preserves credibility and ensures the documentation can withstand external review.

Qualifications and Preparation

There is no formal licensing body for observers in Australia however, the role requires Strong attention to detail, confidence with MSA documentation and clear understanding of marathon swim rules and most importantly calm judgement in dynamic open-water environments

Where possible, swimmers are encouraged to engage experienced observers, particularly for high-profile swims, record attempts or Triple Crown qualifying swims.

MSA strongly recommends that observers familiarise themselves with relevant WOWSA Rules and Regulations (including MSA documentation standards) prior to undertaking the role.

A Shared Responsibility

Marathon swimming is a community-driven sport. Observers, pilots, crews and organisers all contribute to the safety and integrity of each swim. By upholding clear standards and thorough documentation, observers ensure that achievements are:

  • Credible

  • Verifiable

  • Recognised

  • Preserved within Australia’s marathon swimming history

MSA encourages swimmers planning recognised marathon swims to consider observer selection early in their preparation process and to ensure all parties understand the requirements well in advance of the swim date.