We've modeled the Big Loop 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 Big Loop 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.
| Interval | Int. Time | Total Time | Int. Dist. | Total Dist. | Grade | Speed | Power |
|---|---|---|---|---|---|---|---|
| #1 | 00:01:57 | 00:01:57 | 0.64 mi | 0.64 mi | -0.10 % | 19.58 mph | 156 watts |
| #2 | 00:01:34 | 00:03:31 | 0.57 mi | 1.21 mi | -0.65 % | 21.66 mph | 149 watts |
| #3 | 00:01:35 | 00:05:07 | 0.54 mi | 1.75 mi | 0.00 % | 20.47 mph | 158 watts |
| #4 | 00:01:20 | 00:06:27 | 0.46 mi | 2.21 mi | -0.08 % | 20.37 mph | 157 watts |
| #5 | 00:00:47 | 00:07:15 | 0.16 mi | 2.37 mi | +4.94 % | 12.10 mph | 198 watts |
| #6 | 00:01:12 | 00:08:27 | 0.37 mi | 2.74 mi | +0.07 % | 18.13 mph | 158 watts |
| #7 | 00:02:57 | 00:11:25 | 0.42 mi | 3.16 mi | +7.01 % | 8.45 mph | 203 watts |
| #8 | 00:01:30 | 00:12:56 | 0.31 mi | 3.47 mi | +3.15 % | 12.37 mph | 188 watts |
| #9 | 00:01:40 | 00:14:36 | 0.36 mi | 3.83 mi | +3.07 % | 12.90 mph | 187 watts |
| #10 | 00:03:40 | 00:18:17 | 0.63 mi | 4.46 mi | +4.97 % | 10.29 mph | 199 watts |
| #11 | 00:05:05 | 00:23:22 | 0.76 mi | 5.22 mi | +6.04 % | 9.01 mph | 202 watts |
| #12 | 00:00:44 | 00:24:06 | 0.20 mi | 5.42 mi | +0.70 % | 15.94 mph | 167 watts |
| #13 | 00:01:08 | 00:25:14 | 0.22 mi | 5.64 mi | +4.44 % | 11.85 mph | 196 watts |
| #14 | 00:00:24 | 00:25:39 | 0.09 mi | 5.73 mi | +2.71 % | 12.62 mph | 185 watts |
| #15 | 00:01:15 | 00:26:55 | 0.19 mi | 5.92 mi | +6.27 % | 9.06 mph | 201 watts |
| #16 | 00:00:48 | 00:27:43 | 0.15 mi | 6.07 mi | +3.75 % | 11.39 mph | 192 watts |
| #17 | 00:01:05 | 00:28:49 | 0.22 mi | 6.29 mi | +3.52 % | 12.16 mph | 190 watts |
| #18 | 00:02:47 | 00:31:37 | 0.43 mi | 6.72 mi | +5.90 % | 9.22 mph | 201 watts |
| #19 | 00:00:54 | 00:32:31 | 0.27 mi | 6.99 mi | -0.32 % | 18.09 mph | 152 watts |
| #20 | 00:01:10 | 00:33:41 | 0.23 mi | 7.22 mi | +4.63 % | 11.94 mph | 196 watts |
| #21 | 00:01:23 | 00:35:05 | 0.36 mi | 7.58 mi | +1.65 % | 15.57 mph | 177 watts |
| #22 | 00:00:24 | 00:35:30 | 0.12 mi | 7.70 mi | +0.62 % | 17.63 mph | 164 watts |
| #23 | 00:00:30 | 00:36:00 | 0.26 mi | 7.96 mi | -6.75 % | 30.60 mph | 94 watts |
| #24 | 00:02:55 | 00:38:56 | 0.52 mi | 8.48 mi | +5.86 % | 10.73 mph | 202 watts |
| #25 | 00:00:25 | 00:39:22 | 0.07 mi | 8.55 mi | +5.51 % | 9.51 mph | 201 watts |
| #26 | 00:00:56 | 00:40:19 | 0.26 mi | 8.81 mi | +0.92 % | 16.19 mph | 169 watts |
| #27 | 00:00:49 | 00:41:08 | 0.46 mi | 9.27 mi | -8.92 % | 33.50 mph | 80 watts |
| #28 | 00:00:36 | 00:41:45 | 0.28 mi | 9.55 mi | -4.59 % | 27.64 mph | 106 watts |
| #29 | 00:00:34 | 00:42:20 | 0.30 mi | 9.85 mi | -10.07 % | 31.13 mph | 0 watts |
| #30 | 00:01:14 | 00:43:35 | 0.20 mi | 10.05 mi | +5.68 % | 9.67 mph | 202 watts |
| #31 | 00:00:37 | 00:44:12 | 0.27 mi | 10.32 mi | -9.10 % | 25.87 mph | 83 watts |
| #32 | 00:00:31 | 00:44:44 | 0.29 mi | 10.61 mi | -8.64 % | 32.70 mph | 86 watts |
| #33 | 00:00:08 | 00:44:53 | 0.06 mi | 10.67 mi | -4.46 % | 25.92 mph | 109 watts |
| #34 | 00:00:43 | 00:45:36 | 0.37 mi | 11.04 mi | -8.11 % | 30.74 mph | 84 watts |
| #35 | 00:00:43 | 00:46:20 | 0.22 mi | 11.26 mi | +0.33 % | 18.48 mph | 161 watts |
| #36 | 00:00:41 | 00:47:01 | 0.35 mi | 11.61 mi | -8.21 % | 30.35 mph | 83 watts |
| #37 | 00:01:09 | 00:48:11 | 0.31 mi | 11.92 mi | +1.69 % | 16.09 mph | 177 watts |
| #38 | 00:01:37 | 00:49:49 | 0.43 mi | 12.35 mi | +1.88 % | 15.85 mph | 179 watts |
| #39 | 00:01:45 | 00:51:34 | 0.76 mi | 13.11 mi | -2.91 % | 26.02 mph | 123 watts |
| #40 | 00:02:14 | 00:53:49 | 0.82 mi | 13.93 mi | -0.73 % | 22.00 mph | 147 watts |
| #41 | 00:01:18 | 00:55:08 | 0.61 mi | 14.54 mi | -3.29 % | 27.77 mph | 118 watts |
| #42 | 00:01:29 | 00:56:37 | 0.65 mi | 15.19 mi | -2.05 % | 26.22 mph | 132 watts |
| #43 | 00:00:37 | 00:57:14 | 0.23 mi | 15.42 mi | -0.16 % | 22.20 mph | 155 watts |
| #44 | 00:01:36 | 00:58:51 | 0.54 mi | 15.96 mi | +0.02 % | 20.05 mph | 157 watts |
| #45 | 00:00:15 | 00:59:07 | 0.09 mi | 16.05 mi | -0.14 % | 20.21 mph | 155 watts |
| #46 | 00:02:53 | 01:02:00 | 0.74 mi | 16.79 mi | +2.20 % | 15.38 mph | 181 watts |
| #47 | 00:01:01 | 01:03:02 | 0.26 mi | 17.05 mi | +2.22 % | 15.00 mph | 182 watts |
| #48 | 00:02:26 | 01:05:29 | 0.54 mi | 17.59 mi | +2.87 % | 13.38 mph | 186 watts |
| #49 | 00:00:23 | 01:05:53 | 0.09 mi | 17.68 mi | +2.63 % | 13.49 mph | 184 watts |
| #50 | 00:00:20 | 01:06:13 | 0.12 mi | 17.80 mi | -3.90 % | 21.36 mph | 115 watts |
| #51 | 00:00:21 | 01:06:34 | 0.10 mi | 17.90 mi | +4.80 % | 17.21 mph | 198 watts |
| #52 | 00:01:04 | 01:07:39 | 0.37 mi | 18.27 mi | -1.19 % | 20.45 mph | 143 watts |
| #53 | 00:00:31 | 01:08:11 | 0.19 mi | 18.46 mi | -0.13 % | 21.57 mph | 154 watts |
| #54 | 00:01:25 | 01:09:36 | 0.37 mi | 18.83 mi | +2.37 % | 15.55 mph | 183 watts |
| #55 | 00:02:37 | 01:12:14 | 0.57 mi | 19.40 mi | +3.12 % | 12.92 mph | 187 watts |
| #56 | 00:02:18 | 01:14:32 | 0.95 mi | 20.35 mi | -2.22 % | 24.81 mph | 131 watts |
| #57 | 00:00:30 | 01:15:02 | 0.24 mi | 20.59 mi | -6.12 % | 28.50 mph | 95 watts |
| #58 | 00:00:15 | 01:15:18 | 0.09 mi | 20.68 mi | -5.25 % | 20.86 mph | 103 watts |
| #59 | 00:00:18 | 01:15:36 | 0.17 mi | 20.85 mi | -9.16 % | 32.77 mph | 83 watts |
| #60 | 00:00:37 | 01:16:14 | 0.31 mi | 21.16 mi | -1.68 % | 29.90 mph | 137 watts |
| #61 | 00:01:12 | 01:17:27 | 0.43 mi | 21.59 mi | -0.03 % | 21.12 mph | 156 watts |
| #62 | 00:00:13 | 01:17:40 | 0.07 mi | 21.66 mi | +1.03 % | 19.27 mph | 169 watts |
| #63 | 00:00:57 | 01:18:38 | 0.29 mi | 21.95 mi | +0.83 % | 17.98 mph | 167 watts |
| #64 | 00:00:43 | 01:19:21 | 0.21 mi | 22.16 mi | +0.93 % | 17.67 mph | 169 watts |
| #65 | 00:00:41 | 01:20:02 | 0.19 mi | 22.35 mi | +1.12 % | 16.57 mph | 170 watts |
| #66 | 00:00:43 | 01:20:46 | 0.20 mi | 22.55 mi | +0.93 % | 16.52 mph | 169 watts |
| #67 | 00:00:27 | 01:21:13 | 0.11 mi | 22.66 mi | +2.34 % | 14.03 mph | 182 watts |
| #68 | 00:01:11 | 01:22:24 | 0.43 mi | 23.09 mi | -1.34 % | 21.59 mph | 141 watts |
| #69 | 00:00:51 | 01:23:16 | 0.35 mi | 23.44 mi | -1.81 % | 24.42 mph | 134 watts |
| #70 | 00:02:29 | 01:25:46 | 0.85 mi | 24.29 mi | +0.15 % | 20.31 mph | 159 watts |
| #71 | 00:00:13 | 01:25:59 | 0.07 mi | 24.36 mi | 0.00 % | 19.91 mph | 158 watts |
| #72 | 00:01:08 | 01:27:08 | 0.31 mi | 24.67 mi | +1.99 % | 16.32 mph | 180 watts |
| #73 | 00:01:16 | 01:28:25 | 0.43 mi | 25.10 mi | -0.38 % | 20.07 mph | 153 watts |
| #74 | 00:02:05 | 01:30:30 | 0.68 mi | 25.78 mi | +0.31 % | 19.59 mph | 161 watts |
| #75 | 00:01:26 | 01:31:56 | 0.55 mi | 26.33 mi | -1.29 % | 22.86 mph | 141 watts |
| Totals | 01:31:56 | 01:31:56 | 26.34 mi | 26.34 mi | NA | 17.19 mph | 166.40 watts |
| Distance | 26.34 mi | |
|---|---|---|
| Time | 01:31:56 | |
| Lead-In | ||
| Avg. Speed | 17.19 mph | |
| Avg. Power | 166.40 w | |
| Normalized Power | 174.43 w | |
| Variability Index | 1.05 | |
| Intensity Factor | 0.79 | |
| Training Stress Score | 96 | |
| Watts/Kg | 2.53 | |
| Work | 918 kJ | |
| Weighted Grade | 1.31% | |
| Effective Elevation | +1,966 / -1,966 ft | |
| Avg. Yaw | 0.00 ° | |
| Avg. CdA | 0.3128 | |
| Avg. Crr | 0.00400 | |
| Route | Big Loop | |
| Bike | Zwift Road Bike | |
| Cheat Sheets | bestbikesplit.com/hints/158170 | |
| 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.