McCormick started his career at Winchester after coming through the youth ranks.
The right-sided defender had spells with Backfield & Langley and lifted the Sussex Senior Cup with Bognor Regis but has spent the majority of his career with the Citizens.
Over the last three seasons, McCormick has been a consistent performer, making 124 appearances and has all the attributes of an attacking full back whilst being defensively resolute.
McCormick signed for the Dolphins for the start of the 2025/26 campaign.