Young is at the top of the leaderboard, having played in all nine rounds of the circuit. He has gained 26 more points than Carl Prean. Matthew Syed, the English champion and national No 1, has qualified in the third spot but has turned down his place.
Both the Welsh champion, Ryan Jenkins, and the Scottish title holder, Euan Walker, have qualified for the men's singles final rounds.
The final stages of the women's event look likely to be dominated by the holder, Middlesex's Kubart Owolabi, who is a former champion of Nigeria, and Sue Collier.