Instant answers from the World Aquatics Masters Competition Regulations, reviewed by certified Technical Officials.
Two free questions, no signup required. Each answer cites the specific World Aquatics article it draws from.
Every call below is grounded in a specific World Aquatics Masters article. Tap any card to ask the AI for the full ruling.
Masters Participants in Masters Swimming events must be 25 years of age or older. Age groups for individual events begin with 25–29 and continue in five-year increments (30–34, 35–39, 40–44, and so on) as high in age as necessary. Note that other Masters disciplines have different floors — Masters Water Polo, for instance, starts at 30.
MS 1.4 / MS 2.2Your age for the entire competition is determined by your age on 31 December in the year the competition starts (the date the first event at that competition begins). A swimmer who turns 30 in November 2026 swims the 30–34 age group for every Masters meet starting in 2026 — even one held in January.
MS 1.5Masters Participants only validly represent Clubs that are affiliated with a Member Federation and recognised by World Aquatics. No Masters Participant or team is designated as representing a country or Member Federation. A Participant may represent only one Club per sport in any one competition.
MS 1.7.3 / MS 1.8When using the forward start, after the Referee's whistle, Masters Participants may take their starting positions on the starting platform or pool deck with at least one foot in contact with the front of the platform or deck — or in the water with at least one hand in contact with the starting wall. Masters do not need to be stationary to be considered ready to start.
MS 2.4.1.1 / MS 2.4.1.2Any Masters Participant who initiates a start before the starting signal — observed and confirmed by both the Referee and the Starter — may be disqualified upon completion of the race, at the Referee's discretion. The Referee will consider whether the swimmer gained a significant advantage from the false start. This is a deliberate softening of the standard Part Two rule.
MS 2.4.1.3In Butterfly races, a Masters Participant may use a Breaststroke kicking movement instead of a Butterfly kicking movement. Only one Breaststroke kick is permitted per arm pull, with two exceptions: a single Breaststroke kick is allowed prior to the turn and the finish without an arm pull, and a single Breaststroke kick is allowed after the start and after each turn before the first arm pull.
MS 2.4.7To keep the meet running and avoid empty lanes, the Management Committee may combine Masters age groups and/or sexes into the same race or set of races, while keeping them separate events for results and awards. In any individual Freestyle 400m, 800m, or 1500m race, two Masters Participants of the same sex may swim in the same lane, with separate timing for each.
MS 2.4.3A Masters team in a Mixed Relay event consists of two female and two male Masters Participants. A team in a relay event that is not a Mixed Relay consists of four Masters Participants of the same sex. In all cases, the four team members must be registered with the same Club.
MS 2.5.1 / MS 2.5.2A Masters relay team's age group is determined by the sum of the ages of all four team members (each calculated as their age on 31 December of the competition year). The brackets are: 100–119 years, then 120–159 years, 160–199 years, and so on in 40-year increments. Relay age groups are not the same shape as the 5-year individual age groups.
MS 2.5.3 / MS 2.5.4At the World Aquatics Masters Championships, unless in a designated sprint lane, Masters Participants must enter the pool feet first in a cautious manner, from a start or turn end only, and from a standing or sitting position. Diving entries are permitted only in designated sprint lanes, which are one-way. Training aids — including pull-buoys, kick boards, fins, hand paddles, cords, and similar — are not permitted in warm-up.
MS 7.6.7.2.1 / MS 7.6.7.2.4 / MS 7.6.7.2.8Each answer is grounded in a specific World Aquatics article. Tap any to expand.
Three plans, every one of them grounded in the same regulations the officials use on deck.
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