No. We apply a system of advised time. For your own safety, if you fail to reach a particular Checkpoint (CP) within a certain time frame, you will be "pushed" by the marshals to increase your pace in order to finish your race within the targeted times.
The 45 km however has a cut-off time of 01:30pm in Gombak. Participants who fail to reach the checkpoint before that time will not be allowed to continue their race.