Miller won three gold medals and broke two world records on the first day of competition at Truro in Nova Scotia.

The 24-year-old claimed gold and a world record in the 400-metre individual medley and 100m fly.

Miller had set the previous 400m IM world record at a Launceston time trial earlier this month.

He set off for Canada as the holder of 10 short-course and nine long-course national records and four short-course and eight long-course world records.

His third gold came in the 4x100m medley relay.

Miller has previously achieved five world titles in Loana, Italy (2012), six in Morelia, Mexico (2014) and nine in Florence, Italy, (2016).

Tasmanians Daniel Watkins and Kate Eckhardt both made finals at the ICF canoe slalom under-23 world championships in Ivrea, Italy.

However, small mistakes cost both Hobart paddlers the chance of medals.

Watkins looked strong in the semi-finals of the C1, qualifying in third position.

But three gate touches and six seconds in penalty left him in sixth position, 6.39 seconds behind Czech gold medallist Vaclav Chaloupka.

In the women’s K1, fellow Derwent paddler Eckhardt also looked solid in the semi-final, qualifying seventh with a single gate touch.

But four gate touches in the final left her with a time of 107.26 and seventh place overall.

On the final day of the championships, Eckhardt will team up with fellow Tasmanian Demelza Wall and Noemie Fox, of NSW, in the C1 with Watkins and Angus Thompson (NSW) representing Australia in the men’s K1.

Stewart McSweyn couldn’t quite add another Tasmanian record in his latest assault on athletics’ elite Diamond League.

Ling Island’s 23-year-old Commonwealth Games representative came 12^th in his favourite event – the 5000m – at the London Stadium.

He recorded a time of 13:20.21 – just outside his own state record of 13:19.96 set in February on the Gold Coast. The race was won by American Paul Chelimo in 13:14.01.

In the last six weeks, the widely-travelled McSweyn has set PBs over 1500m in Germany, 10,000 m in Norway and 3000m in Morocco.

Devonport’s Macey Stewart sits 43^rd with a stage remaining in the BeNe Ladies Tour being held in the Netherlands and Belgium.

After a 28th-place finish in the 3.9km prologue in Oosterhout, Stewart came 36^th in the opening 135.5km stage followed by 33^rd in the next over 98.3km.

In the individual time trial – a discipline in which she won a junior world title – the 22-year-old was 70^th over 10.1km around Sint-Laureins.

Stewart is riding for Wiggle High5 alongside Brits Katie Archibald, Elinor Barker and Lucy Garner, Italian Rachele Barbieri and Dane Julie Leth.

Stewart was listed as “did not finish” in her last race – the 112km one-day La Course by Le Tour de France from Annecy to Le Grand-Bornand.