- Who
- Roger Federer, Juan Martin Del Potro
- What
- 4/26 hour(s):minute(s)
- Where
- United Kingdom (London)
- When
World number one Roger Federer (Switzerland) defeated Juan Martin Del Potro (Argentina) 3-6, 7-6, 19-17 in 4 hr 26 min in the men's singles semi-final at Wimbledon, London, UK, on 3 August 2012.
