- Who
- Simon Johns, Sam de Kooker
- What
- 335.3 kilometre(s)
- Where
- United Kingdom (Guernsey,Channel Islands)
- When
The greatest distance rowed on a Concept II indoor rower in 24 hours by a pair (male) is 335.3 km (208.35 miles) by Simon Johns and Sam De Kooker (both UK) in Guernsey, Channel Islands, UK, in November 2008.
This predictably betters the record for an individual, set by David Harris at 307.68 km in 2001.