The most Quadtrac tractors cultivating simultaneously in the same field is 50 was achieved by Helen Rainthorpe (UK) in Hemswell, Lincolnshire, UK, on 28 July 2012.
The record attempt was organised by Helen Rainthorpe in memory of her father John Rainthorpe, with the aim of raising money for Cancer research. All the tractors were Case IH Quadtracs. Participants came from afar to take part, some as far as Aberdeen.