BASEL, Oct 27 — World number one Carlos Alcaraz cruised into his 11th quarter-final of the season with a comfortable victory over Botic van de Zandschulp at the Swiss Indoors on Wednesday.

The 19-year-old saw off his 35th-ranked opponent 6-4, 6-2 to continue his bid for a sixth title of the year.

Alcaraz will take on either fellow Spaniard Pablo Carreno Busta or home player Dominic Stricker in the last eight.

The US Open champion edged a tight opening set and then fell an early break down in the second as Dutchman Van de Zandschulp gave himself renewed hope of a shock win.

But Alcaraz quickly stamped that out, racing to victory with a run of six straight games. — AFP