Race to Robie Creek
Boise, United States of America · Saturday 17 April 2027
Nestled in the Boise Front of Idaho is the unique and world-class \"Race to Robie Creek\" Half Marathon. As one of the world's most challenging excursions, it is much more than a test to your athletic abilities. This is where you will connect with the rugged American West. The stunning backdrops help the competition come alive! Many refer to this experience as one of their favorite and most memorable of all time.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:24:51
Time difference: +24.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain651m
Elevation High1458m
Elevation Low833m
Weather Forecast
High19°C
Low7°C
Chance of Rain4%
How hard is Race to Robie Creek?
Very Difficultharder than 78% of marathons
Flattest / easiestHardest
On our difficulty model, Race to Robie Creek plays about 23 minutes slower than an average road marathon for a 3:30 runner. It ranks #250 hardest of 1151 marathons we analyse, and #143 of 576 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Race to Robie Creek?
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 Race to Robie Creek | Difference |
|---|---|---|
| 3:00:00 | 3:11:17 | +11:17 |
| 3:30:00 | 3:47:42 | +17:42 |
| 4:00:00 | 4:24:51 | +24:51 |
| 4:30:00 | 5:02:41 | +32:41 |
| 5:00:00 | 5:41:09 | +41:09 |
| 5:30:00 | 6:20:12 | +50:12 |
| 6:00:00 | 6:59:49 | +59:49 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Race to Robie Creek 2027 Course Analysis
Race to Robie Creek is a full marathon held in Boise, United States of America. It is scheduled for Saturday 17 April 2027. The course is run on road surface with 651m of total climbing, with its high point near 1458m above sea level. For registration and full race details, visit the official Race to Robie Creek website.
Elevation Profile
This is a very challenging course with 651m of total climbing - well above the average road marathon - topping out around 1458m above sea level. Hill training is essential, and you should expect a slower finish time than on a flat course.
Expected Race Day Weather
Based on historical weather data for April, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 7°C to 19°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (4%), so dry conditions are likely.
Surface Type: Road
Race to Robie Creek is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Race to Robie Creek against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Race to Robie Creek fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in United States of America
Run Crazy Horse
Crazy Horse Memorial, United States of America
Road216m gainOct 2026
Whiskey Row Marathon
Prescott, United States of America
Road0m gainOct 2026
Hartford Marathon
Hartford, United States of America
Trail230m gainOct 2026
Rogue Marathon
Medford, United States of America
Road168m gainOct 2026
Holloman Ace of Races Marathon
Alamogordo, United States of America
Road104m gainOct 2026
Des Plaines River Trail Marathon
Libertyville, United States of America
Trail144m gainOct 2026