Seeding for 56km
Runner's qualifying times since 1 July in the year prior to the event, are used to seed them: faster runners in the front and slower runners at the back. International runners can use any race since the last Two Oceans Marathon (April 2015).
All Gold & Silver Medallists will be seeded in Group A. Runners wearing Blue and Yellow numbers will be seeded behind the C group unless they qualify for a higher group.
|Group||42.2 km||50 km||56 km||80 km||89 km||100 km|
|A||Sub 3:00||Sub 3:35||Sub 4:15||Sub 6:35||Sub 8:20||Sub 9:30|
|B||Sub 3:30||Sub 4:15||Sub 4:45||Sub 7:10||Sub 9:00||Sub 10:20|
|C||Sub 4:00 Blue & Yellow numbers||Sub 4:30||Sub 5:15||Sub 7:40||Sub 9:30||Sub 10:55|
|D||Sub 4:15||Sub 5:00||Sub 5:30||Sub 8:30||Sub 10:50||Sub 11:10|
|E||Rest of the field sub 5:00||Sub 6:10||Sub 7:00||Sub 10:30||Sub 12:00||Sub 13:30|
Details for the following year will be officially launched in September 2017.