What is the course like for Boulder Rez Marathon?

Rolling Hills course on Trail. See the elevation chart on this page for details.

Is Boulder Rez Marathon USATF certified?

Yes this race is listed as certified.

What are typical race-day temperatures for Boulder Rez Marathon?

Average ~71F (high 86F / low 57F).

Can I generate a pace band for Boulder Rez Marathon?

Yes use the Pace Band button on this page to create a course-specific pace band.

Boulder Rez Marathon | Race Info, Course, Elevation & Pace Band

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Race Information

Race Dates

2027: TBD
2026: Saturday, August 15, 2026

Course Information

Profile: Rolling Hills
Type: Multiple Loops
Surface: Trail

Boston Qualifier?: Yes
World Marathon Major Qualifier?: No

Race Day Weather

Mean Temp.: 71°F (21°C)
Average High: 86°F (30°C)
Average Low: 57° F (13°C)

PR Score & Course Score

PR Score: Request Score
Course Score: Request Score

Race Size

2026: 67 Finishers
2025: 94 Finishers
2024: 85 Finishers
2023: 87 Finishers
2022: 53 Finishers
2021: 78 Finishers

BQ Percentages

2026: 4.5%
2025: 1.1%
2024: N/A
2023: N/A
2022: N/A
2021: N/A

Miscellaneous Information

Pace Groups?: No

Boulder Rez Marathon Rankings, Course Speed & Boston Qualifier Statistics

The Boulder Rez Marathon was the 385th largest marathon in the U.S. in 2025 based on the number of finishers. In 2024, it ranked as the 380th largest marathon in the U.S..

In 2026, 4.5% of Boulder Rez Marathon finishers have achieved Boston Marathon qualifying times. In 2025, 1.1% of finishers qualified for the Boston Marathon.

Based on its percentage of Boston Qualifiers (BQs), the Boulder Rez Marathon ranked 433rd among marathons in the U.S. in 2025 and currently ranks 201st so far in 2026. In Colorado, it ranked 9th in 2025 and 4th so far in 2026. These rankings provide a useful benchmark for comparing the Boulder Rez Marathon with other Boston Marathon qualifying races.

There are currently no Course or PR Scores for the Boulder Rez Marathon. If you would like scores calculated, send a request here.

Learn more about PR Scores and Course Scores on the FAQ page.

Boulder Rez Marathon Elevation Chart

No course elevation available at this time.

Hotel & VRBO Accommodations for the Boulder Rez Marathon

View available accomodations around the Boulder Rez Marathon Finish Line and Course. Book your Reservation now before the best places are sold out.

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Compare the Boulder Rez Marathon to other Marathons

Use tools below to compare races and convert times across courses.

Do you want to see how the Boulder Rez Marathon stacks up against other marathons?

Compare the details of the Boulder Rez Marathon side-by-side with other marathons with our Comparison Tool.

Comparison Tool

If you ran the Boulder Rez Marathon in 5:44:00, what would your time in other marathons be?

See how your finish time would compare on other marathon courses with our Time Conversion Tool.

Time Converter Tool

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