Home / Climb power / Col de la Madeleine
Col de la Madeleine: published power figures
France · Power figures for Col de la Madeleine as printed by the press, shown on a race broadcast or taken from a rider's own file, each with its source. None of them is our estimate.
The climb
Auvergne-Rhône-Alpes (Savoie), France
| Side | Start | Length | Elevation gain | Average | Max | Summit | Hairpins | Source |
|---|---|---|---|---|---|---|---|---|
| La Chambre (south) | La Chambre | 19.3 km | 1522 m | 7.9 % | 11.2 % | 1994 m | 24 | climbfinder.com |
| Feissons-sur-Isère / Aigueblanche (north, via La Léchère) | Feissons-sur-Isère | 25.9 km | 1609 m | 6.2 % | 11.4 % | 1993 m | 22 | climbfinder.com |
Each side from one source, linked. A dash: the sources we opened disagree or give no figure, so we leave it out.
Race history since 1996 15
| Year | Race | Stage | Type | Stage winner or first over the top | Source |
|---|---|---|---|---|---|
| 2025 | Tour de France Femmes | 8 | Summit finish | Pauline Ferrand-Prévot | letourfemmes.fr |
| 2025 | Tour de France | 18 | Crossed | Jonas Vingegaard | en.wikipedia.org |
| 2020 | Tour de France | 17 | Crossed | Richard Carapaz | en.wikipedia.org |
| 2018 | Tour de France | 12 | Crossed | Julian Alaphilippe | en.wikipedia.org |
| 2013 | Tour de France | 19 | Crossed | Pierre Rolland | en.wikipedia.org |
| 2012 | Tour de France | 11 | Crossed | Peter Velits | en.wikipedia.org |
| 2010 | Tour de France | 9 | Crossed | Anthony Charteau | en.wikipedia.org |
| 2005 | Tour de France | 11 | Crossed | Santiago Botero | en.wikipedia.org |
| 2004 | Tour de France | 17 | Crossed | Gilberto Simoni | en.wikipedia.org |
| 2002 | Tour de France | 16 | Crossed | Michael Boogerd | en.wikipedia.org |
| 2001 | Tour de France | 10 | Crossed | Laurent Roux | en.wikipedia.org |
| 2000 | Tour de France | 15 | Crossed | Massimiliano Lelli | en.wikipedia.org |
| 1998 | Tour de France | 16 | Crossed | Jan Ullrich | en.wikipedia.org |
| 1997 | Tour de France | 14 | Crossed | Richard Virenque | en.wikipedia.org |
| 1996 | Tour de France | 7 | Crossed | Richard Virenque | en.wikipedia.org |
Records
| Record | Rider | Time | Year | Source |
|---|---|---|---|---|
| Feissons-sur-Isère: fastest race ascent (watts2win segment 24.22 km, 6.29%) | Romain Bardet | 1:02:31 | 2025 | watts2win.eu |
| La Chambre: climbing record (segment length not stated) | Jan Ullrich / Marco Pantani | 0:52:40 | 1998 | domestiquecycling.com |
A time is listed only where the sources agree on it; where two sources give different times for the same ride, it is left out.
How long would it take you?
Your time up Col de la Madeleine at a steady power, from a physics model.
Advanced: rolling resistance and drag
Estimate from a physics model (Martin et al. 1998), on the average gradient. Wind, surface, pacing and steep sections change the real time. More cycling tools
How this is calculated
P × 0.977 = ½ · ρ · CdA · v³ + v · m · g · (sin θ + Crr · cos θ), θ = arctan(average gradient), m = rider + bike, g = 9.81; solved for the speed v, time = length / v. Air density ρ: NASA GRC troposphere: T=15.04-0.00649*h; p=101.29*((T+273.1)/288.08)^5.256; rho=p/(0.2869*(T+273.1)); h = mean of start and summit altitude. Sources: Martin et al. 1998, J Appl Biomech 14(3):276-291 — https://collections.lib.utah.edu/ark:/87278/s6jd5f71; Defraeye et al. 2010, J Biomech 43(7):1262-1268 (upright position, cyclist+bike 0.270 m2) — https://lirias.kuleuven.be/retrieve/232736; NASA Glenn Research Center, Earth Atmosphere Model (metric) — https://www.grc.nasa.gov/www/k-12/airplane/atmosmet.html. Climb geometry: the side's source in the table above.
Published power figures 5
| Rider | Effort | Figure | Duration | Type | Source |
|---|---|---|---|---|---|
| Pauline Ferrand-Prévot | TdFF 2025, stage 8, Col de la Madeleine 2025-08-02 | 5.04 W/kg W/kg (estimate, ᵉW/kg) | 64:50 | Analyst estimate | Lanterne Rouge Kārlis Ozols, 2025-08-02“averaging 5.04 ᵉW/kg for 64:50” |
| Pauline Ferrand-Prévot | TdFF 2025, stage 8, Col de la Madeleine 2025-08-02 | ~5 W/kg W/kg (estimated avg) | 1:04:49 | Analyst estimate | Velo Zach Nehr, 2025-08-06“Estimated Average Power: ~5w/kg” |
| Florian Lipowitz | Tour de France 2025 stage 18, Col de la madeleine 2025 | about 6.02-6.03 (same as Vingegaard and Pogačar) W/kg W/kg (est.) | — | Analyst estimate | Lanterne Rouge Karlis Ozols (Lanterne Rouge), 2025-07-24“did the exact same ᵉW/kg, as he was alone” |
| Harry Sweeny | Tour de France 2025 stage 18, Col de la Madeleine, Tdf s18 peak 60min 2025 | 392 W peak power | — | Rider or team stated | EF EF Education-EasyPost, 2025-07-26“about 400 for the hour up the Col de la Madeleine” |
| Pauline Ferrand-Prévot | Tour de France Femmes 2025 stage 8, Col de la madeleine 2025 | 5.5 W/kg W/kg (est.) | 64 min | Analyst estimate | FasCat FasCat Coaching“PFP did 5.5 watts/kg up the Madeleine for 64 minutes” |
As published, with no conversion: each figure is labelled by what it is, and links to where it was printed. All published power figures →