Chalmers was the first person from Guernsey to win a Commonwealth Games athletics medal when he won 400m hurdles bronze in Birmingham two years ago.

He narrowly made the qualifying time for this summer’s Olympic Games, doing it as he retained his national title in Manchester in June, when he ran under protest after being accused of a false start.

He emulated his brother Cameron, who was part of the Team GB 4x400m mixed relay team at the last Olympics in Tokyo.

“I’m very proud of him, he really was putting everything into it, trying his best in that semi-final,” his father Chris told BBC Radio Guernsey.

“He’s such a hard worker, we’ve spent years trying to get him to this place and it’s been good steady progress.

“He’s 24 and we’re already starting to think four years to Los Angeles and how good he can be by then.

“I think he might have a race or two to still do in Europe before the end of the season and then it’s all down to the hard work for the next few years to see if we can get him to that even higher level for the Los Angeles Olympics.”