Leweston School hosts a number of regional and national pentathlon competitions and also two annual training camps every year.
- 15 September South West Triathlon Competition, Leweston
- 1 October South West Schools Pellet Shooting (National Schools Qualifier), Leweston
- October Dorset Biathlon Championships, Leweston
- 5 - 10 April Easter Training Camp, Leweston
- 10 April Race 1 British Biathle Series, Leweston
- 3 - 8 August Summer Training Camp, Leweston
Leweston will be running the South West Triathle and National Triathle Schools Laser Run, and National Biathle at Leweston School during the summer. Dates to be confirmed.