Normally a relaxed, chatty character, Oliver Hirst-Greenham appeared distinctly nervous as he entered the clubhouse at Thonock Park Golf Club, Lincolnshire, for his first EDGA tournament back in June.   The PING Open for Golfers with a Disability was certainly all new territory for him. Oliver’s disability isn’t that noticeable, and he had been worrying about this: would he look like he was an intruder? Was there anyone else like him in the tournament? Would he fit in with the other players? This was the first day at a whole new school.   Later in the day after his practice round, Oliver looked a completely different person, like all his questions had been answered. His smile was beaming, and there was a sparkle in his eyes; he’d been made to feel welcome during the practice round by his two playing partners, the first a leg amputee, the other a one-armed player, and he was busy buying them a well-deserved post-round beer amid plenty of chatter.