Chalmers crashed out of the Olympic Games in Paris last summer when he fell after hitting a hurdle at the semi-final stage.
This year he is focusing on defending his British 400m hurdles title for a sixth successive year before heading to the World Athletics Championships in Tokyo in September.
And he says his race in Birmingham, where he lost to winner Alex Haydock-Wilson and runner-up Josh Faulds, was the perfect way to start his season.
“I live for these occasions of high pressure situations, which is great, but today I just didn’t get it right,” he added.
“But that’s the art of 400m running. Hopefully I can bounce back, go to the Europeans, run a good time with these boys in the mix and 4x400m and go on to outdoors over the hurdles.
“The big goal this year is still the world outdoors.”