
Westwood-Susanville, United States of America · Sunday 11 October 2026
Bizz Johnson Trail Marathon is a scenic event held in Lassen National Forest, California. The race features a full marathon, half marathon, 10K, and 50K distances, with the marathon starting at Mason Station and finishing in Susanville. The course follows the historic Fernley and Lassen Branch Line of the Southern Pacific Railroad, offering breathtaking views of the forest and Susan River Canyon.
Adjusted Time
4:45:04
Time difference: +45.1 minutes compared to a flat, road, temperate course.
On our difficulty model, Bizz Johnson Trail Marathon plays about 44 minutes slower than an average road marathon for a 3:30 runner. It ranks #81 hardest of 1150 marathons we analyse, and #31 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Bizz Johnson Trail Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:33:29 | +33:29 |
| 3:30:00 | 4:09:16 | +39:16 |
| 4:00:00 | 4:45:04 | +45:04 |
| 4:30:00 | 5:20:55 | +50:55 |
| 5:00:00 | 5:56:52 | +56:52 |
| 5:30:00 | 6:32:56 | +1:02:56 |
| 6:00:00 | 7:09:07 | +1:09:07 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Bizz Johnson Trail Marathon is a full marathon held in Westwood-Susanville, United States of America. It is scheduled for Sunday 11 October 2026. The course is run on trail surface with 383m of total climbing, with its high point near 1701m above sea level. For registration and full race details, visit the official Bizz Johnson Trail Marathon website.
This is a hilly course with 383m of total climbing, rising to around 1701m above sea level. It pays to train on hills and to pace the climbs conservatively.
Based on historical weather data for October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 4°C to 13°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a moderate chance of rain (29%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Bizz Johnson Trail Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Bizz Johnson Trail Marathon against other marathons to find the right race for your goals.
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