| Km | Altitude | Gain | Gradient | Max | 0–15% |
|---|---|---|---|---|---|
| 1 | 770 m | +40 m | 4.0% | 7% |
|
| 2 | 820 m | +50 m | 5.0% | 17% |
|
| 3 | 888 m | +68 m | 6.8% | 10% |
|
| 4 | 961 m | +73 m | 7.3% | 12.8% |
|
| 5 | 1029 m | +68 m | 6.8% | 9% |
|
| 6 | 1110 m | +81 m | 8.1% | 12% |
|
| 7 | 1190 m | +80 m | 8.0% | 9.4% |
|
| 8 | 1262 m | +72 m | 7.2% | 8.2% |
|
| 9 | 1335 m | +72 m | 7.2% | 9% |
|
| 10 | 1396 m | +62 m | 6.2% | 13.8% |
|
| 11 | 1453 m | +57 m | 5.7% | 7% |
|
| 12 | 1461 m | +9 m | 0.9% | 8% |
|
| 13 | 1530 m | +68 m | 6.8% | 8.6% |
|
| 14 | 1521 m | −9 m | −0.9% | 5% |
|
| 15 | 1474 m | −47 m | −4.7% | 0.4% |
|
| 16 | 1504 m | +30 m | 3.0% | 9.6% |
|
| 17 | 1594 m | +89 m | 8.9% | 11.2% |
|
| 18 | 1681 m | +87 m | 8.7% | 9.6% |
|
| 19 | 1767 m | +86 m | 8.6% | 10.6% |
|
| 20 | 1821 m | +54 m | 5.4% | 6.4% |
|
| 21 | 1839 m | +18 m | 2.2% | 10% |
|
Difficulty score is length × gradient, weighted for the steepest kilometre.
Riders’ photos, notes and corrections make every profile better.