World record criteria for road races
IAAF World Road Records
IAAF Rule 260.28
The IAAF now recognises World Records in road races for the
following distances: 10km; 15km; 20km; Half Marathon; 25km;
30km; Marathon (42.195km); 100km; Road Relay (Marathon distance
only). IAAF Rule 260 states that the following criteria with
regard to the course must be complied with in order for a World
Road Record to be ratified:
- The course must be measured by one or more “A” or “B”
grade IAAF/AIMS approved measurers.
- The start and finish points of a course, measured along
a theoretical straight line between them, shall not be
further apart than 50% of the race distance.
- The overall decrease in elevation between the start and
finish shall not exceed 1:1000, i.e. 1m per km (0.1%).
- Any course measurer who originally measured the course
or another “A” or “B” grade measurer in possession of the
complete measurement data and maps must validate that the
course measured was the course run, normally by riding in
the lead vehicle.
- The course must be verified (i.e. re-measured) as late
as possible before the race, on the day of the race or as
soon as practical after the race, preferably by a different
“A” grade measurer from any of those who did the original
Note: If the course was originally
measured by at least two “A” grade or one “A” and one “B”
grade measurers, and at least one of them is present at the
race to validate the course as per Rule 260.28(d), no
verification (re-measurement) under this Rule 260.28(e) will
- World Records in Road Running Events set at intermediate
distances within a race must comply with the conditions set
under Rule 260. The intermediate distances must have been
measured and marked during the course measurement and must
have been verified in accordance with Rule 260.28(e).
- For the Road Relay, the race shall be run in stages of
5km, 10km, 5km, 10km, 5km, 7.195km. The stages must have
been measured and marked during the course measurement with
a tolerance of ± 1% of the stage distance and must have been
verified in accordance with Rule 260.28(e).