SUBIC BAY – The country’s triathlon capital is primed for an explosive weekend of racing Sunday, June 7, here as a stellar influx of international participants slug it out with the finest local talent in the Century Tuna IRONMAN Philippines and the IRONMAN 70.3 Subic Bay.This year’s edition carries historic weight, marking the 10th anniversary of the 70.3 distance (1.9km swim, 90km bike, and 21km run) and the fifth staging of the full-distance I…