The Australian eased past South African Rik de Voest 6-3, 6-4 to reach the quarter-finals of the Hall of Fame Tennis Championships.
18-year-old Andrew Murray battled from a set down to win 2-6, 6-1, 7-6 in the final of the SAP Open.
The British teenager pulled off the biggest win of his career to set up a meeting with Lleyton Hewitt in the final of the SAP Open.
The Australian was the only non-British player given an invite into the main men's draw.
Sania Mirza and Anna Tchakvetadze of Russia went down 1-6, 6-2, 3-6 to Ana Ivanovic of Yugoslavia and Alla Kudryavtseva of Russia.
Fans tuning in to the 2016 World Chess Championship from home may well have the best seats in the house, with the tournament set to be broadcast live in 360-degree Virtual Reality (VR) -- a first in any sport, organisers say.