Age Restriction: Applications for this record title will only be accepted if the applicant is 16 years of age or over.
- This record is for the fastest average half marathon run by a pair of siblings.
- This record is to be attempted by two female siblings.
- This record is to be measured in hours, minutes and seconds.
- Half marathon distance is 21.097 km / 13.1 miles.
- For the purpose of this record, the measurement is taken as the aggregate time for both siblings to complete the same marathon.