| Km | Altitude | Gain | Gradient | Max | 0–15% |
|---|---|---|---|---|---|
| 1 | 732 m | +56 m | 5.6% | 24.8% |
|
| 2 | 763 m | +32 m | 3.2% | 15.4% |
|
| 3 | 795 m | +31 m | 3.1% | 24.2% |
|
| 4 | 861 m | +66 m | 6.6% | 26.8% |
|
| 5 | 920 m | +59 m | 5.9% | 24.8% |
|
| 6 | 981 m | +62 m | 6.2% | 36% |
|
| 7 | 1064 m | +83 m | 8.3% | 44.4% |
|
| 8 | 1153 m | +89 m | 8.9% | 61.4% |
|
| 9 | 1241 m | +88 m | 8.8% | 51% |
|
| 10 | 1355 m | +114 m | 11.4% | 47.4% |
|
| 11 | 1402 m | +47 m | 4.7% | 17.8% |
|
| 12 | 1479 m | +77 m | 7.7% | 21.4% |
|
| 13 | 1564 m | +85 m | 8.5% | 38.4% |
|
| 14 | 1633 m | +70 m | 7.0% | 41.4% |
|
| 15 | 1671 m | +37 m | 3.7% | 21.6% |
|
| 16 | 1701 m | +30 m | 3.0% | 23.6% |
|
| 17 | 1703 m | +3 m | 0.3% | 50.4% |
|
| 18 | 1721 m | +17 m | 1.7% | 19.2% |
|
| 19 | 1742 m | +21 m | 2.1% | 36% |
|
| 20 | 1818 m | +76 m | 7.6% ? Includes a suspected survey error | 47% |
|
| 21 | 1903 m | +85 m | 8.5% | 58.8% |
|
| 22 | 1986 m | +83 m | 8.3% | 50% |
|
| 23 | 2060 m | +73 m | 7.3% | 22.6% |
|
| 24 | 2148 m | +88 m | 8.8% | 47.6% |
|
| 25 | 2235 m | +87 m | 8.7% | 32.4% |
|
| 26 | 2335 m | +100 m | 10.0% | 21.2% |
|
| 27 | 2542 m | +207 m | 20.7% ? Includes a suspected survey error | 78.4% |
|
| 28 | 2436 m | −106 m | −10.6% ? Includes a suspected survey error | 51.2% |
|
| 29 | 2473 m | +37 m | 3.7% | 19.2% |
|
| 30 | 2475 m | +2 m | 4.0% | 4.6% |
|
Difficulty score is length × gradient, weighted for the steepest kilometre.
Riders’ photos, notes and corrections make every profile better.