Karan Rastogi's winning run came to a halt when he went down to Peng Sun of China 2-6, 5-7 in the semi-finals of the US$15,000 Uzbekistan Futures tennis tournament, in Andijan, on Friday.

Rastogi, partnering Rohan Bopanna, also lost in the doubles quarter-finals. They were beaten by the Chinese duo of Peng Sun and Yu Wang Jr. 1-6, 6-4, 1-6 on Thursday.