The annual fixture in the school’s diary involved pupils dedicating 12 hours to a chosen activity as a way of raising funds for charity.

1. Boston Grammar School 12-hour marathon 2000
A selection of photographs from the gallery below ... Photo: Boston Standard

2. Boston Grammar School 12-hour marathon 2000
The 12-hour marathon was organised by Boston Grammar School's Charity Club. Pupils took part in a number of activities, including football, for a 12-hour period to raise sponsorship money. Photo: Boston Standard

3. Boston Grammar School 12-hour marathon 2000
The table tennis players during a break. Photo: Boston Standard

4. Boston Grammar School 12-hour marathon 2000
More than 200 youngsters took part in the event. Here are five more. Photo: Boston Standard