The TCS Lidingöloppet 30 has to be completed within a certain amount of time. This means that you have to pass certain checkpoints within a given time. If you do not make it in time, you have to get off the course and abandon the race. The checkpoints are as follows:
- Fågelöudde (15.5 km) must be passed before 16:15
- The Grönsta checkpoint (20 km) must be passed before 17:00
- Sticklinge (23.8 km Vätskan Uddvägen) must be passed before 17:40.