It is all systems go as the biggest high school track and field event in the world, the ISSA/GraceKennedy Boys and Girls’ Athletics Championships, gets under way today inside the National Stadium for its 116th staging. Over 2,000 athletes from 100 schools will be in action over the next five days, with competition set to begin today at 9 a.m. with first-round action in the girls’ Class 3 1500 metres.