1-10
1d4
11-20
1d6
21-30
1d8
31-40
1d10
41-50
1d12
51-60
2d8
61-70
1d20
71-80
2d12
81-90
3d8
91-100
2d20
101 +
3d10 (+ 1d6 per every 10 speed)