For various reasons, the following Challenge Events that could have been in April Strider, are not.
Full details can be found under the Events tab

24th Jun Mynd Drover
24th Jun Rotary Across Wales
26th Aug Gritstone Challenge
2nd Sept Cheviot Challenge
10th Sep Chiltern Marathon
23rd Sep Surrey Tops
7th Oct Dave Lewis Challenge
26th Nov Gatliffe Marathon