| Km | Altitude | Gain | Gradient | Max | 0–15% |
|---|---|---|---|---|---|
| 1 | 505 m | +27 m | 2.7% | 4.8% |
|
| 2 | 561 m | +56 m | 5.6% | 11.2% |
|
| 3 | 612 m | +51 m | 5.1% | 10% |
|
| 4 | 654 m | +42 m | 4.2% | 7.6% |
|
| 5 | 698 m | +44 m | 4.4% | 5.2% |
|
| 6 | 741 m | +43 m | 4.3% | 5% |
|
| 7 | 760 m | +19 m | 1.9% | 3.6% |
|
| 8 | 792 m | +33 m | 3.3% | 4.8% |
|
| 9 | 820 m | +28 m | 2.8% | 4.6% |
|
| 10 | 867 m | +47 m | 4.7% | 8% |
|
| 11 | 863 m | −4 m | −0.4% | 2.8% |
|
| 12 | 844 m | −19 m | −1.9% | 4.4% |
|
| 13 | 809 m | −35 m | −3.5% | 0% |
|
| 14 | 844 m | +35 m | 3.5% | 4.6% |
|
| 15 | 887 m | +42 m | 4.2% | 5.6% |
|
| 16 | 923 m | +37 m | 3.7% | 4.2% |
|
| 17 | 959 m | +35 m | 3.5% | 4% |
|
| 18 | 1001 m | +43 m | 4.3% | 5.2% |
|
| 19 | 1013 m | +12 m | 1.2% | 4% |
|
| 20 | 1007 m | −6 m | −3.3% | 0% |
|
Difficulty score is length × gradient, weighted for the steepest kilometre.
Riders’ photos, notes and corrections make every profile better.