The four seeds came through contrasting quarterfinals in the Indian Summer Benefiting Beyond Walls, the inaugural PSA World Tour International 25 event at the Commodore Squash Club in St Paul, Minnesota, USA.
Tom Richards, the No. 2 seed from England (pictured), who is battling back to top form after a recent hamstring injury, was stretched for 71 minutes before overcoming fellow countryman Eddie Charlton.
Underdog Charlton, the world No. 63 from Nottingham, twice led in the match—but Richards, a former world No. 12 currently at 22, dug deep to win 6-11, 11-2, 9-11, 11-9, 11-3.
Richards will now take on third seed Laurens Jan Anjema, the eight-time Dutch champion from The Hague. Anjema denied the event domestic interest in the last four by beating U.S. champion Christopher Gordon 11-8, 11-6, 11-5 in 44 minutes.
Fourth seed Nicolas Mueller enjoyed the quickest victory, taking only 24 minutes to stop Malaysian Muhd Asyraf Azan 11-1, 11-3, 11-7.
The Swiss number one now has top seed Alister Walker in his sights. The world No. 15 from Botswana defeated fellow African Shaun le Roux, the world No. 53 from Cape Town, 11-4, 7-11, 11-7, 11-6.
 Alister Walker (BOT) bt Shaun le Roux (RSA) 11-4, 7-11, 11-7, 11-6 (51m)
 Nicolas Mueller (SUI) bt Muhd Asyraf Azan (MAS) 11-1, 11-3, 11-7 (24m)
 Laurens Jan Anjema (NED) bt Christopher Gordon (USA) 11-8, 11-6, 11-5 (44m)
 Tom Richards (ENG) bt Eddie Charlton (ENG) 6-11, 11-2, 9-11, 11-9, 11-3 (71m)
 Alister Walker (BOT) v  Nicolas Mueller (SUI)
 Tom Richards (ENG) v  Laurens Jan Anjema (NED)
Article and image courtesy of the Professional Squash Association