Aussie-Japanese semi showdowns in Hua Hin Challenger

Eighth seeded Millman, ranked 165^th in the world, wasted just two games to demolish Alexey Vattin of Russia 6-2 6-0 while countryman Whittington, ranked 240^th, worked much harder to beat rising star Edan Leshem of Greece 1-6 6-4 6-3.

Whittington is to line up a clash against Japanese Go Soeda who upset top seed Matthew Ebden of Australia 6-4 7-5.

Tatsuma Ito 

The other semi-final showdown will also be an Aussie-Japanese battle between Millman and Tatsuma Ito. The latter fought back from a first set deficit to South Korean up-and-coming player Kwon Soonwoo 1-6 6-4 6-4.