Vishnu Vardhan defeated Karan Rastogi 6-7 6-1 7-6 in the India F4 semi-final on hard. The upset overturned the form book — Karan Rastogi came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Vardhan V. came through in three sets.
Hard: Rastogi K. leads 2–1 · Clay: Vardhan V. leads 1–0
Vishnu Vardhan beat Karan Rastogi 6-7(5) 6-1 7-6(4). Umpiry, "Vishnu Vardhan vs Karan Rastogi — India F4 Semi-final", https://umpiry.com/match/2011-04-18/rastogi-vs-vardhan-india-f4-sf?utm_source=cite (as of 18 April 2011).