Jack McMillan

Swimming

BIOGRAPHY

Jack McMillan represented Ireland as part of the men’s 4×200 metres freestyle relay team at the Tokyo 2020 Olympic Games, swimming the lead-off leg and setting a new Irish 200 metres freestyle record of 1:46.66. The team finished 14th overall.

A freestyle specialist, McMillan grew up in Belfast and started swimming aged four at a local leisure centre where his father worked. He trained at Bangor Swimming Club under coach Paul Dennis and attended the Royal Belfast Academical Institution, where he combined a demanding academic schedule with early-morning and after-school training sessions. He won gold in the 200 metres freestyle at the 2018 World Schools Games and was a finalist at the 2019 European Short Course Championships. He made his international debut for Ireland at the 2019 World Aquatics Championships in Gwangju. In 2022 he switched his sporting allegiance to Great Britain. Competing for Team GB as a heat swimmer, he was awarded a gold medal when the British 4×200 metres freestyle relay team won the final at the Paris 2024 Olympics.

Team Ireland Number

905

Gender

Male

Discipline

4x200m Freestyle Relay

Games

Tokyo 2020

Date Of Birth

January 4, 2000

Personal Best

1:47:10 (2020)

Hometown

Belfast

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SWIMMING NEWS

Performance Round Up July 2026

Athletics LONDON DIAMOND LEAGUE Mark English delivered one of the finest performances of his career as he smashed his 800m personal best to finish second at the London Diamond League on Saturday. The Donegal athlete clocked a stunning 1:42.97, dipping below the 1:43 mark for the first time and becoming just the latest Irish athlete [...]

EVENTS COMING UP IN AUGUST

Athletics World U20 Championships, Eugene, Oregon: 5-9 August European Athletics Championships, Birmingham: 10-16 August ⁠⁠Lausanne Diamond League: 20-21 August ⁠⁠Silesia Diamond League: 23 August ⁠⁠Zurich Diamond League: 27 August   Boxing European U19 Championships, Loznica, Serbia: 11-22 August Boxing Ireland U23 Championships, 7-22 August   Cycling UEC Mountain Bike European Championships, Monteceneri, Switzerland: 30 July [...]

Irish Sailing and Rugby Sevens Shine in Action-Packed Weekend

Sailing McMahon Claims Sailing Bronze in California Eve McMahon secured a superb bronze medal at the Sailing Grand Slam event in San Pedro, California, after a composed performance in the Final Series against some of the world's best Olympic sailors. Racing took place in ideal conditions inside the bay, with 10–13 knots of breeze providing [...]

In The News – July 6th 2026

Irish athletes continued to make their mark on the international stage this week, with a junior world title in canoe sprint, a first international medal for diver Jake Passmore, and major victories in cycling and show jumping highlighting another impressive period of success across multiple sports. Sean Butterly Crowned Junior World Champion in Halifax Ireland [...]

Performance Round Up – June 2026

Athletics Mark English finished second in a high-quality men’s 800m field at the Rome Diamond League. The Donegal athlete clocked a season’s best time of 1:43.80, his second fastest ever over the distance, as he closed strongly in the final metres to challenge for victory. Sarah Healy delivered a personal best time of 14:48.88 in [...]

Events Coming Up in July

Athletics ⁠Eugene Diamond League - July 4th Cork City Sports - July 8th ⁠Morton Games - July 10th ⁠Monaco Diamond League - July 10th ⁠Hungarian Athletics Grand Prix - July 14th ⁠London Diamond League - July 18th National Senior Track and Field Championships - July 25th & 26th   Badminton Japan Open World Tour 750 [...]

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