9
votes
4answers
377 views

How does having a pacesetter help set a record?

Often pacesetters are used to set the correct pace to help break a record. For cyclists there is an obvious physical advantage in running in a group, as those in the middle/back of the group have ...
24
votes
2answers
416 views

Why is the marathon World Record not 2:03:02?

Why exactly is Geoffrey Mutai's 2:03:02 in Boston (2011) not the marathon World Record?