Based on my current (not so great) fitness level, I defined four different training types, which I distinguish by pace/ distance:
Fast: < 5:00 min/km
Moderate: 5:00 – 5:50 min/km
Slow: > 5:50 min/km
Long: > 15 km
The distance I plan to cover per run in each traning type is noted under 'Plan'. The distance I've actually covered is given in 'Run'.

Week 6 (current)

Type Slow Moderate Fast Long Total
Plan 10 km 5 km 5 km 20 km
Run

Week 5

Type Slow Moderate Fast Long Total
Plan 6 km 21.1 km 27.1 km
Run - - 6.0 km 21.2 km 27.2 km

Week 4

Type Slow Moderate Fast Long Total
Plan 5 km
6 km
5 km 16 km 32 km
Run - 5.4 km
5.2 km
10.6 km
5.3 km
- - 26.5

Week 3

Type Slow Moderate Fast Long Total
Plan - 6 km
7 km
5 km 21 km 38 km
Run - 6.2 km - 21.2 km 27.4 km

Week 2

Type Slow Moderate Fast Long Total
Plan 4 km 6 km
6 km
- 18 km 34 km
Run 4.2 km 6.2 km
6.2 km
- 18.2 km 34.8 km

Week 1

Type Slow Moderate Fast Long Total
Plan 6 km
5 km
- - - 11 km
Run 5.5 km 7.3 km - - 13.8 km