Edwards is better known as a 400m hurdler and won silver in that event in the over-45 category at last year’s outdoor European Masters’ Championships.
Competing in the same age group in Madrid, the Royal Navy athlete, who is a coach at City of Plymouth AC, progressed through the heats and semi-finals to reach the 400m flat final.
He easily won his heat in 56.16 seconds before clocking 54.48 seconds to finish second in his semi.
In a competitive final that was dominated by Spain and Great Britain, Edwards clocked 54.53 seconds.
Meanwhile, Tavistock athlete Tess Masselink enjoyed a good second track outing in America.
She clocked 4:41.80 to finish fifth in the women’s invitational 1,500m race at the Weems Baskin Relays Meet in Columbia, South Carolina. Masselink, competing for the College of Charleston, was the first freshman athlete.