FANS inside the National Stadium at the Gibson McCook Relays tomorrow can expect a grand finale when the Championship High School Boys’ 4x400 metres closes the meet at 8:45 p.m. A titanic battle is expected, as defending champions Kingston College, Jamaica College, Excelsior High and Calabar High will be in a dogfight as teams seek psychological advantage ahead of next month’s ISSA/GraceKennedy Boys’ and Girls’ Athletics Championships in an event which could help decide the overall champions of the meet.