James Canyon
Boulder, Colorado, USA
James Canyon
Distance: 11.22 km
Elevation Gain: 674 m
Elevation Loss: 2 m
Difficulty:
543 (Moderate)
FIETS Index: 4.05 FIETS
Avg Grade: 6.01 %
Max cat climb: 1
Min elevation: 1924 m
Max elevation: 2597 m
Ride Category:
Climb
James Canyon is a scenic canyon located near Boulder, Colorado, offering cyclists and outdoor enthusiasts a beautiful route through the foothills of the Rocky Mountains. Cyclists often start from Boulder, riding through Fourmile Canyon or Lefthand Canyon and making their way into James Canyon. The full ride, depending on the route, covers around 20-30 miles with a challenging elevation gain of 2,000-3,000 feet. You’ll pass through pine forests, rock formations, and open meadows, with occasional views down the canyon towards Boulder. In the fall, the changing leaves make it especially stunning.
| Rank | Rider | Date | Time | Power | W/kg | Speed |
|---|---|---|---|---|---|---|
| 🥇 | SmP | Mar 03, 2019 | 00:31:33 | 297 W | 5.12 w/kg | 21.36 km/h |
| 🥈 | Alan Gunner | Mar 16, 2019 | 00:33:19 | 311 W | 4.53 w/kg | 20.22 km/h |
| 🥉 | Ilja Booij | Apr 04, 2018 | 00:35:03 | 321 W | 4.28 w/kg | 19.22 km/h |
| 4 | Tristan Kramers | Sep 18, 2017 | 00:35:39 | 310 W | 4.19 w/kg | 18.90 km/h |
| 5 | Peter Kroon | Mar 19, 2017 | 00:36:42 | 302 W | — | 18.36 km/h |
| 6 | Tom Thurston-Mathews | Nov 11, 2017 | 00:36:52 | 275 W | 4.10 w/kg | 18.28 km/h |
| 7 | Silvano Turati | Nov 25, 2018 | 00:37:06 | 246 W | 4.10 w/kg | 18.16 km/h |
| 8 | Knut-Ståle Arntsen | Mar 01, 2018 | 00:37:24 | 282 W | 3.92 w/kg | 18.02 km/h |
| 9 | Maarten Kroon | Nov 23, 2017 | 00:37:32 | 261 W | 4.08 w/kg | 17.95 km/h |
| 10 | Patrick BERNARD | Apr 07, 2021 | 00:37:35 | 331 W | 3.82 w/kg | 17.93 km/h |
| 11 | Tigo Star | Dec 11, 2017 | 00:38:05 | 293 W | 3.86 w/kg | 17.69 km/h |
| 12 | lee Marshall | Apr 06, 2018 | 00:38:22 | 260 W | 4.00 w/kg | 17.56 km/h |
| 13 | D Speelman | Sep 26, 2018 | 00:38:41 | 292 W | 3.74 w/kg | 17.42 km/h |
| 14 | Gunnar Tojren | Apr 05, 2018 | 00:38:45 | 292 W | 3.79 w/kg | 17.39 km/h |
| 15 | Aleman (CycleChat) | Apr 03, 2018 | 00:39:12 | 259 W | 3.95 w/kg | 17.19 km/h |
| 16 | Tom Smeets | Jun 14, 2019 | 00:39:24 | 269 W | 3.68 w/kg | 17.10 km/h |
| 17 | Martin Budd | Oct 21, 2017 | 00:39:33 | 266 W | 3.71 w/kg | 17.04 km/h |
| 18 | Larry Eggleton | Oct 24, 2017 | 00:39:35 | 233 W | 3.88 w/kg | 17.02 km/h |
| 19 | Douglas Forer | Mar 04, 2019 | 00:41:15 | 285 W | 3.56 w/kg | 16.33 km/h |
| 20 | David Dos Santos Rodrigues | Dec 20, 2020 | 00:41:40 | 218 W | 3.52 w/kg | 16.17 km/h |
| 21 | Graham Lowe | Mar 02, 2019 | 00:41:41 | 316 W | 3.46 w/kg | 16.16 km/h |
| 22 | Dean Hallam | Apr 17, 2018 | 00:41:43 | 267 W | 3.56 w/kg | 16.15 km/h |
| 23 | C Warren | Dec 20, 2017 | 00:41:52 | 203 W | 3.67 w/kg | 16.09 km/h |
| 24 | Indalecio Lekerika | May 05, 2018 | 00:41:56 | 205 W | 3.60 w/kg | 16.07 km/h |
| 25 | Indalecio Lekerika | Mar 02, 2019 | 00:41:56 | 206 W | 3.61 w/kg | 16.07 km/h |
| 26 | john guinn | Jul 26, 2018 | 00:42:07 | 213 W | 3.55 w/kg | 16.00 km/h |
| 27 | erik bruin | Feb 19, 2019 | 00:42:22 | 271 W | 3.39 w/kg | 15.90 km/h |
| 28 | B E | Mar 01, 2019 | 00:42:29 | 246 W | 3.46 w/kg | 15.86 km/h |
| 29 | Piet van Hulst | Mar 03, 2019 | 00:42:32 | 236 W | 3.47 w/kg | 15.84 km/h |
| 30 | Raf Van Grieken | Mar 07, 2019 | 00:42:42 | 255 W | 3.40 w/kg | 15.78 km/h |
| 31 | Volker Scheid | Mar 08, 2019 | 00:42:54 | 234 W | 3.34 w/kg | 15.71 km/h |
| 32 | Peter Holpar | Mar 03, 2019 | 00:42:57 | 224 W | 3.56 w/kg | 15.69 km/h |
| 33 | Christian Borchgrevink-Vigeland | Apr 08, 2018 | 00:43:07 | 268 W | 3.35 w/kg | 15.63 km/h |
| 34 | David Descamps | Mar 02, 2019 | 00:43:23 | 227 W | 3.39 w/kg | 15.53 km/h |
| 35 | Timothy Dunnigan | Sep 18, 2018 | 00:43:48 | 255 W | 3.34 w/kg | 15.38 km/h |
| 36 | Sebastian Meyer zu Selhausen | Mar 11, 2019 | 00:44:07 | 267 W | 3.14 w/kg | 15.27 km/h |
| 37 | Vlad Naoukin | Nov 01, 2016 | 00:44:23 | 223 W | 2.79 w/kg | 15.38 km/h |
| 38 | Matthias Schlaffer | Mar 06, 2019 | 00:44:36 | 237 W | 3.20 w/kg | 15.11 km/h |
| 39 | Augustin Sporis | Mar 09, 2019 | 00:44:37 | 229 W | 3.27 w/kg | 15.10 km/h |
| 40 | Andy Bowie | Feb 19, 2022 | 00:44:56 | 211 W | 3.25 w/kg | 14.99 km/h |
| 41 | Martin Dyer | Apr 08, 2018 | 00:45:10 | 244 W | 3.21 w/kg | 14.92 km/h |
| 42 | Alex Vouillot | Mar 01, 2019 | 00:45:27 | 249 W | 3.28 w/kg | 14.82 km/h |
| 43 | Mark Prior | Feb 01, 2018 | 00:45:30 | 238 W | 3.17 w/kg | 14.81 km/h |
| 44 | Lukasz Pilny | Mar 03, 2019 | 00:46:00 | 237 W | 3.04 w/kg | 14.65 km/h |
| 45 | David Avery | Dec 27, 2019 | 00:46:09 | 248 W | 2.99 w/kg | 14.60 km/h |
| 46 | Bert de Gooijer | Dec 30, 2020 | 00:46:20 | 231 W | 3.08 w/kg | 14.54 km/h |
| 47 | robert.leikis@mac.com | Aug 24, 2019 | 00:46:27 | 202 W | 3.11 w/kg | 14.51 km/h |
| 48 | Patrick Reinquin | May 11, 2017 | 00:46:42 | 224 W | — | 14.43 km/h |
| 49 | Reiner Feick | Nov 23, 2022 | 00:46:50 | 231 W | 2.96 w/kg | 14.39 km/h |
| 50 | Mark Greedy | Mar 03, 2019 | 00:47:15 | 251 W | 2.99 w/kg | 14.26 km/h |
| 51 | Charles Wijnker | Sep 23, 2017 | 00:47:18 | 230 W | 3.07 w/kg | 14.25 km/h |
| 52 | Matthias Marquardt | Apr 26, 2018 | 00:47:25 | 204 W | 3.04 w/kg | 14.21 km/h |
| 53 | Irma Grape | Mar 03, 2019 | 00:47:27 | 198 W | 3.05 w/kg | 14.20 km/h |
| 54 | Andrius LAURINAVICIUS | Sep 02, 2020 | 00:47:47 | 213 W | 2.97 w/kg | 14.10 km/h |
| 55 | Fabrice Maisonneuve | Apr 17, 2021 | 00:47:51 | 211 W | 3.01 w/kg | 14.08 km/h |
| 56 | James MacDonald | Jan 21, 2021 | 00:48:06 | 202 W | 3.06 w/kg | 14.01 km/h |
| 57 | Stéphane HILTENFINK | May 03, 2020 | 00:48:51 | 263 W | 2.77 w/kg | 13.79 km/h |
| 58 | thirard michel | Mar 11, 2019 | 00:49:28 | 194 W | 2.94 w/kg | 13.62 km/h |
| 59 | Rene van Leeuwen | Mar 28, 2017 | 00:49:31 | 245 W | — | 13.61 km/h |
| 60 | Steven Showalter | Mar 31, 2021 | 00:49:41 | 213 W | 2.81 w/kg | 13.56 km/h |
| 61 | Alexey Demenev | Apr 30, 2018 | 00:50:50 | 242 W | 2.69 w/kg | 13.25 km/h |
| 62 | Henrik Sørensen | May 04, 2018 | 00:51:00 | 223 W | 2.79 w/kg | 13.21 km/h |
| 63 | Asa Post | Apr 08, 2018 | 00:51:07 | 186 W | 2.90 w/kg | 13.18 km/h |
| 64 | JJosef Kluson | Feb 15, 2021 | 00:51:14 | 205 W | 2.73 w/kg | 13.15 km/h |
| 65 | Goran Meglaj | Mar 12, 2019 | 00:51:42 | 213 W | 2.77 w/kg | 13.03 km/h |
| 66 | Igor Tatarinov | Jun 11, 2020 | 00:52:17 | 216 W | 2.65 w/kg | 12.89 km/h |
| 67 | thierry marc | Mar 12, 2019 | 00:52:18 | 198 W | 2.71 w/kg | 12.88 km/h |
| 68 | Kenneth Heggøy | Jan 27, 2022 | 00:52:33 | 233 W | 2.59 w/kg | 12.82 km/h |
| 69 | Max Wall | Apr 06, 2018 | 00:52:53 | 210 W | 2.71 w/kg | 12.74 km/h |
| 70 | Tomas Widerberg | Dec 17, 2017 | 00:53:18 | 207 W | 2.65 w/kg | 12.64 km/h |
| 71 | Mike 8008 | Jun 11, 2025 | 00:53:22 | 223 W | 2.59 w/kg | 12.62 km/h |
| 72 | Paul Ellis | Mar 02, 2019 | 00:53:33 | 204 W | 2.65 w/kg | 12.58 km/h |
| 73 | Thomas Schöfer | Mar 01, 2019 | 00:53:51 | 197 W | 2.63 w/kg | 12.51 km/h |
| 74 | Sławek Bikeman | Oct 16, 2021 | 00:54:09 | 205 W | 2.59 w/kg | 12.44 km/h |
| 75 | Lucile CHAZAUX | Aug 02, 2024 | 00:54:14 | 187 W | 2.63 w/kg | 12.42 km/h |
| 76 | Jaap Mulder | Dec 28, 2018 | 00:54:50 | 241 W | 2.46 w/kg | 12.29 km/h |
| 77 | Robert de Wit | Sep 13, 2021 | 00:54:51 | 191 W | 2.55 w/kg | 12.28 km/h |
| 78 | Familie Pfotenhauer | Dec 16, 2017 | 00:55:41 | 204 W | 2.55 w/kg | 12.10 km/h |
| 79 | Jacob Heckmann | Sep 10, 2018 | 00:56:20 | 199 W | 2.43 w/kg | 11.96 km/h |
| 80 | Bernhard Wolkerstorfer | Mar 06, 2025 | 00:56:20 | 198 W | 2.48 w/kg | 11.96 km/h |
| 81 | Pascal Saillard | Mar 03, 2019 | 00:56:32 | 189 W | 2.42 w/kg | 11.92 km/h |
| 82 | Simone Pinamonti | May 05, 2020 | 00:57:22 | 166 W | 2.44 w/kg | 11.74 km/h |
| 83 | Hans Petiet | Dec 30, 2018 | 00:57:23 | 175 W | 2.43 w/kg | 11.74 km/h |
| 84 | Familie Bruin | Jan 16, 2022 | 00:57:23 | 167 W | 2.46 w/kg | 11.74 km/h |
| 85 | Keith Loveman | Nov 14, 2020 | 00:57:33 | 176 W | 2.38 w/kg | 11.71 km/h |
| 86 | Jos Carboex | Apr 09, 2021 | 00:58:53 | 179 W | 2.39 w/kg | 11.44 km/h |
| 87 | Mesozoid | Nov 25, 2023 | 00:59:38 | 168 W | 2.33 w/kg | 11.30 km/h |
| 88 | Lesquale | Jan 27, 2020 | 00:59:49 | 200 W | 2.30 w/kg | 11.26 km/h |
| 89 | Lelio Baffo | Dec 13, 2017 | 00:59:53 | 194 W | 2.26 w/kg | 11.25 km/h |
| 90 | veronique druilhet | Mar 12, 2019 | 01:00:11 | 129 W | 2.43 w/kg | 11.20 km/h |
| 91 | Artur Chmielewski | Feb 25, 2022 | 01:01:33 | 133 W | 2.33 w/kg | 10.95 km/h |
| 92 | Tony Barlow | Jan 21, 2019 | 01:03:09 | 161 W | 2.03 w/kg | 10.67 km/h |
| 93 | Jayne Crowder | Dec 01, 2018 | 01:03:26 | 145 W | 2.23 w/kg | 10.62 km/h |
| 94 | J F | Sep 09, 2025 | 01:04:53 | 181 W | 2.06 w/kg | 10.38 km/h |
| 95 | Bret Wade | Nov 12, 2020 | 01:07:02 | 153 W | 2.04 w/kg | 10.05 km/h |
| 96 | Frantxoa A | Oct 18, 2024 | 01:08:08 | 159 W | 2.06 w/kg | 9.89 km/h |
| 97 | Vladimir Frantsuzov | Apr 15, 2019 | 01:10:46 | 155 W | 1.89 w/kg | 9.52 km/h |
| 98 | MARK BUSBY | Jul 08, 2022 | 01:14:06 | 136 W | 1.81 w/kg | 9.09 km/h |
| 99 | W van Koetsveld | Apr 05, 2025 | 01:14:22 | 136 W | 1.81 w/kg | 9.06 km/h |
| 100 | Richatd Thorndale | Apr 04, 2018 | 01:23:56 | 193 W | 1.53 w/kg | 8.03 km/h |
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|---|---|---|---|---|---|
| Alpe d’Huez | 14.17 | 1129 | 9.22 | 4565 | 4.62 |
| St Moritz | 14.86 | 97 | 0.13 | 3005 | 4.26 |
| Lake Como | 29.58 | 353 | 0.11 | 1690 | 4.33 |
| Sa Calobra | 9.89 | 655 | 4.44 | 2175 | 4.73 |
| Lago d’Iseo (East side) | 27.38 | 107 | 0.00 | 2584 | 4.43 |