Complex sentence: He was awarded School Half Colours in his final year in recognition of his five years service as scorer to the Cricket 1st XI. He maintains an association with the school by organising the Annual London Old Boys' Dinner.
Split into simpler sentences: He was awarded School half colours in his final year in recognition of his five years service as scorer to the 1st XI cricket team. He mainatins an association with the school by organising the Annual London Old Boys' Dinner.