Botswana-born Alister Walker dashed hopes of home success in the inaugural NetSuite Open in the US state of California when he despatched seven-time US champion Julian Illingworth in the opening round of the PSA World Tour International 35 squash event at the Arillaga Center for Sports & Recreation at Stanford University.
Walker, the world No20 based in New York, took just 29 minutes to see off Illingworth, ranked eight places lower, 11-5, 11-2, 11-2.
Walker will now line up against another New York-based international Wael El Hindi. The fourth-seeded Egyptian defeated Malaysian qualifier Kamran Khan 11-8, 11-9, 11-9 in 50 minutes.
There were contrasting successes for Mexico's Salazar twins, competing in their first Tour event since being involved in a motor accident.
Arturo Salazar battled back from two games down to overcome higher-ranked Australian Ryan Cuskelly 8-11, 10-12, 11-7, 11-9, 11-9 in a 95-minute marathon.
And qualifier Cesar Salazar took the opening game against top seed Daryl Selby before the world No11 from England regained control of the match to win 8-11, 11-7, 11-7, 11-9 after 65 minutes.
RESULTS: PSA International 35 NetSuite Open, Stanford, California, USA
1st round:
[1] Daryl Selby (ENG) bt [Q] Cesar Salazar (MEX) 8-11, 11-7, 11-7, 11-9 (65m)
Alan Clyne (SCO) bt [Q] Adrian Waller (ENG) 6-11, 4-11, 11-8, 11-4, 12-10 (73m)
Shahier Razik (CAN) bt Lewis Walters (ENG) 11-2, 11-4, 11-5 (33m)
[3] Omar Mosaad (EGY) bt Saurav Ghosal (IND) 11-4, 6-11, 11-4, 11-2 (50m)
[4] Wael El Hindi (EGY) bt [Q] Kamran Khan (MAS) 11-8, 11-9, 11-9 (50m)
Alister Walker (BOT) bt Julian Illingworth (USA) 11-5, 11-2, 11-2 (29m)
Arturo Salazar (MEX) bt Ryan Cuskelly (AUS) 8-11, 10-12, 11-7, 11-9, 11-9 (95m)
[2] Laurens Jan Anjema (NED) bt [Q] Eric Galvez (MEX) 11-9, 11-7, 11-4 (31m)
Quarter-final line-up:
[1] Daryl Selby (ENG) v Alan Clyne (SCO)
[3] Omar Mosaad (EGY) v Shahier Razik (CAN)
[4] Wael El Hindi (EGY) v Alister Walker (BOT)
[2] Laurens Jan Anjema (NED) v Arturo Salazar (MEX)
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