The race starts and ends at the Millennium Hall in Horton cum Studley (OX33 1AE), with the course being mostly flat apart from a 130 foot climb up to the village of Beckley at about the 11 mile point. The course has distance markers and water points with enthusiastic supporters to cheer the runners on. Course records show the competitiveness of the event - the current men's record stands at 1:12:08, while the ladies' record is 1:26:00. There are trophies to be won in the main categories, and every runner finishing is awarded a commemorative medal. Runners are encouraged to form teams of four, which can be male, female or mixed, to win team prizes in addition to individual awards.

The mass start at 2.00pm takes place in the middle of the Horton cum Studley village fete, providing entertainment, food and a licensed bar for families of the runners while they are running, and for the runners when they return. In addition, the same course, as well as a shorter 5 mile version, is available for walkers, starting at 9.00am.

Runners can register their entry at a discounted fee of only £12.00 up until 1st June 2016, using the entry form downloadable from this website. Entries on the race day are permitted on the field right up until 1.45pm with a fee of £15.00. Runners must read both the Conditions of Entry and the Rules of the Otmoor Challenge, which are both available on this website.

The Otmoor Challenge exists to unite the villagers of Horton cum Studley in their annual fete and to provide an exciting and competitive event for runners of all abilities. The walk attracts fast walkers and family groups who can enjoy either a fast walk or a gentle stroll through the countryside. The money raised from all these events, after operating costs are deducted, is donated to local charities and good causes. In 2015, over £5000 was distributed.