White Marlin Open 2025 Entry Fee. The white marlin open is always the first full week of august (beginning on a sunday), with registration occurring during the weekend immediately prior. Each day's purse will be split evenly among any white marlin, blue marlin and tuna in first, second and/or third place on the leaderboard at the end of the day.

And continues until 3:30 p.m. (a) officially register a boat, and/or (b) be registered as an angler on an officially registered boat, prior to fishing.