We've modeled the Castle to Castle route using the typical standard bike characteristics from Zwift along with rolling resistance data supplied by (Zwift Insider ). For the rider, we modeled a lighter athlete holding roughly 2.5 to 2.7 Watts/Kg.
Use the Time Analysis Tool to adjust Drag (CdA), Average Power, Rider Weight and Rolling Resistance (Crr) to your own specific numbers. For detailed information on specific sections of the route, simply drag over that section on the Time Analysis chart to zoom in (note the data under Route Overview updates to Zoomed Area). For a more customized model tailored specifically to your data and inputs Sign Up For Free and create your own power plan with the Castle to Castle route!
Zwift courses do not use real world weather data, but with a real world race and a Premium Subscription you would see data on temperature, humidity, pressure, wind speed and wind direction for the entire course.
Read more about the Advanced Weather chart under our on the FAQs page and see it in action on our Ironman World Championships Demo.
This route has a short lead-in of about 1 to 2 minutes of added time in addition to your estimated time to complete.
| Interval | Int. Time | Total Time | Int. Dist. | Total Dist. | Grade | Speed | Power |
|---|---|---|---|---|---|---|---|
| #1 | 00:00:48 | 00:00:48 | 0.25 mi | 0.25 mi | 0.00 % | 18.66 mph | 171 watts |
| #2 | 00:01:37 | 00:02:26 | 0.55 mi | 0.80 mi | +0.20 % | 20.34 mph | 174 watts |
| #3 | 00:01:32 | 00:03:59 | 0.55 mi | 1.35 mi | -0.20 % | 21.29 mph | 168 watts |
| #4 | 00:00:13 | 00:04:12 | 0.08 mi | 1.43 mi | -0.46 % | 21.61 mph | 165 watts |
| #5 | 00:00:53 | 00:05:05 | 0.30 mi | 1.73 mi | +0.37 % | 20.47 mph | 176 watts |
| #6 | 00:00:31 | 00:05:36 | 0.16 mi | 1.89 mi | +1.23 % | 18.77 mph | 187 watts |
| #7 | 00:01:00 | 00:06:37 | 0.22 mi | 2.11 mi | +3.73 % | 13.39 mph | 207 watts |
| #8 | 00:00:39 | 00:07:16 | 0.18 mi | 2.29 mi | +1.02 % | 16.60 mph | 183 watts |
| #9 | 00:00:31 | 00:07:47 | 0.09 mi | 2.38 mi | +6.71 % | 10.85 mph | 220 watts |
| #10 | 00:00:46 | 00:08:34 | 0.19 mi | 2.57 mi | +1.98 % | 14.60 mph | 195 watts |
| #11 | 00:02:44 | 00:11:19 | 0.60 mi | 3.17 mi | +3.48 % | 13.17 mph | 206 watts |
| #12 | 00:01:02 | 00:12:21 | 0.33 mi | 3.50 mi | -0.04 % | 19.12 mph | 171 watts |
| #13 | 00:00:24 | 00:12:45 | 0.14 mi | 3.64 mi | 0.00 % | 20.64 mph | 172 watts |
| #14 | 00:00:22 | 00:13:08 | 0.13 mi | 3.77 mi | -1.08 % | 20.20 mph | 157 watts |
| #15 | 00:00:28 | 00:13:36 | 0.18 mi | 3.95 mi | -3.43 % | 23.54 mph | 130 watts |
| #16 | 00:01:05 | 00:14:41 | 0.42 mi | 4.37 mi | -0.27 % | 23.10 mph | 167 watts |
| #17 | 00:00:21 | 00:15:03 | 0.17 mi | 4.54 mi | -5.68 % | 28.80 mph | 112 watts |
| #18 | 00:00:17 | 00:15:20 | 0.13 mi | 4.67 mi | -3.07 % | 25.99 mph | 134 watts |
| #19 | 00:00:36 | 00:15:57 | 0.23 mi | 4.90 mi | -2.07 % | 22.34 mph | 144 watts |
| #20 | 00:00:14 | 00:16:11 | 0.09 mi | 4.99 mi | +1.39 % | 22.45 mph | 188 watts |
| #21 | 00:00:11 | 00:16:23 | 0.06 mi | 5.05 mi | -3.80 % | 19.53 mph | 125 watts |
| #22 | 00:00:19 | 00:16:42 | 0.14 mi | 5.19 mi | -4.12 % | 26.73 mph | 124 watts |
| #23 | 00:00:53 | 00:17:36 | 0.39 mi | 5.58 mi | -2.10 % | 25.76 mph | 144 watts |
| #24 | 00:01:47 | 00:19:24 | 0.65 mi | 6.23 mi | 0.00 % | 21.56 mph | 171 watts |
| #25 | 00:02:05 | 00:21:29 | 0.71 mi | 6.94 mi | +0.23 % | 20.25 mph | 173 watts |
| #26 | 00:00:24 | 00:21:54 | 0.16 mi | 7.10 mi | -1.65 % | 22.86 mph | 151 watts |
| #27 | 00:02:08 | 00:24:03 | 0.75 mi | 7.85 mi | +0.08 % | 21.10 mph | 172 watts |
| #28 | 00:02:06 | 00:26:10 | 0.74 mi | 8.59 mi | -0.13 % | 21.14 mph | 168 watts |
| #29 | 00:01:24 | 00:27:34 | 0.49 mi | 9.08 mi | +0.03 % | 20.87 mph | 170 watts |
| #30 | 00:01:52 | 00:29:27 | 0.65 mi | 9.73 mi | +0.01 % | 20.82 mph | 172 watts |
| #31 | 00:01:03 | 00:30:30 | 0.37 mi | 10.10 mi | -0.14 % | 20.97 mph | 170 watts |
| #32 | 00:00:15 | 00:30:46 | 0.07 mi | 10.17 mi | +2.90 % | 15.92 mph | 201 watts |
| #33 | 00:00:27 | 00:31:14 | 0.15 mi | 10.32 mi | -1.46 % | 19.84 mph | 151 watts |
| #34 | 00:00:48 | 00:32:02 | 0.25 mi | 10.57 mi | +1.59 % | 18.66 mph | 190 watts |
| #35 | 00:00:34 | 00:32:36 | 0.21 mi | 10.78 mi | -1.82 % | 22.30 mph | 147 watts |
| #36 | 00:00:54 | 00:33:31 | 0.33 mi | 11.11 mi | -0.07 % | 22.03 mph | 170 watts |
| #37 | 00:00:56 | 00:34:28 | 0.32 mi | 11.43 mi | +0.16 % | 20.28 mph | 173 watts |
| #38 | 00:00:38 | 00:35:06 | 0.18 mi | 11.61 mi | +1.36 % | 17.22 mph | 187 watts |
| #39 | 00:00:16 | 00:35:23 | 0.09 mi | 11.70 mi | +0.14 % | 18.54 mph | 174 watts |
| #40 | 00:00:30 | 00:35:53 | 0.18 mi | 11.88 mi | -0.96 % | 21.56 mph | 158 watts |
| #41 | 00:00:52 | 00:36:45 | 0.30 mi | 12.18 mi | -0.34 % | 20.44 mph | 167 watts |
| #42 | 00:02:23 | 00:39:08 | 0.83 mi | 13.01 mi | -0.12 % | 20.95 mph | 169 watts |
| #43 | 00:00:09 | 00:39:18 | 0.06 mi | 13.07 mi | -1.31 % | 22.01 mph | 155 watts |
| #44 | 00:00:13 | 00:39:31 | 0.09 mi | 13.16 mi | -2.01 % | 23.73 mph | 144 watts |
| #45 | 00:00:49 | 00:40:21 | 0.28 mi | 13.44 mi | +0.94 % | 20.22 mph | 182 watts |
| #46 | 00:01:21 | 00:41:42 | 0.47 mi | 13.91 mi | -0.16 % | 20.81 mph | 169 watts |
| Totals | 00:41:42 | 00:41:42 | 13.93 mi | 13.93 mi | NA | 20.04 mph | 172.47 watts |
| Distance | 13.93 mi | |
|---|---|---|
| Time | 00:41:42 | |
| Lead-In | 1 - 2 minutes | |
| Avg. Speed | 20.04 mph | |
| Avg. Power | 172.47 w | |
| Normalized Power | 174.89 w | |
| Variability Index | 1.01 | |
| Intensity Factor | 0.79 | |
| Training Stress Score | 44 | |
| Watts/Kg | 2.61 | |
| Work | 432 kJ | |
| Weighted Grade | 0.23% | |
| Effective Elevation | +321 / -331 ft | |
| Avg. Yaw | 0.00 ° | |
| Avg. CdA | 0.2966 | |
| Avg. Crr | 0.00400 | |
| Route | Castle to Castle | |
| Bike | Zwift Road Bike | |
| Cheat Sheets | bestbikesplit.com/hints/229596 | |
| Additional Info. | Zwift Insider | |
Note: All ERG and MRC files are compatible with Zwift, TrainerRoad, RGT and Rouvy. For more information on all downloadable file types please see the File Downloads & Device Settings FAQs.