- Who
- Graham John Martin
- What
- 320.1 kilometre(s)
- Where
- South Africa (Pretoria)
- When
Graham John Martin (South Africa) covered a distance of 320.1 km (198.9 miles) on two wheels riding his Yamaha XS 1100 and sidecar at Gerotek Test Track, Pretoria, South Africa, on 21 August 1988.