Bound for Boston Marathon (Denver)

Denver, CO, USA · August 1, 2027
partly-cloudy-day60°·77° high·Light·Dry
6
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Bound for Boston Marathon (Denver) race day weather

partly-cloudy-day
60°at start
77° high
Light
Dry
Goal
0:00:00

Warming up, manage hydration carefully

Runners will face a temperature increase from 60°F at the start to 77°F by the finish, with humidity averaging 54%. Wind will be light at 5 mph from the SW, posing minimal impact. As temperatures rise, it's crucial for runners to adjust their pacing and stay hydrated, especially in the later laps.

Race day forecast available in 245 days
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Start
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Finish
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
Pace
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Common Goals:

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Bound for Boston Marathon (Denver) route and elevation

The Bound for Boston Marathon (Denver) course has about 857 ft (261 m) of climbing and 858 ft (262 m) of descent, and finishes near the elevation it starts. It is flatter than 83% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 18, with 54 ft (16 m) of climbing.

What the hills cost

The hills change finish times by less than 0.2% here, under half a minute for a 4:00 runner.

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 3:30, 4:00 or 4:30 finish
The Bound for Boston Marathon (Denver) mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
154 ft53 ft8:009:0910:18
254 ft54 ft8:019:0910:18
354 ft54 ft8:009:0910:17
454 ft54 ft8:019:1010:18
553 ft54 ft8:009:0810:18
653 ft54 ft8:009:0910:17
753 ft54 ft8:019:0910:18
853 ft54 ft8:009:0910:17
953 ft54 ft8:009:0910:18
1053 ft54 ft8:009:0910:17
1154 ft54 ft8:019:0910:18
1254 ft54 ft8:009:0910:18
1354 ft54 ft8:019:0910:17
1454 ft54 ft8:009:0910:18
1554 ft54 ft8:019:0910:18
1654 ft53 ft8:019:1010:18
1754 ft53 ft8:019:1010:19
1854 ft52 ft8:019:1010:19
1954 ft52 ft8:029:1010:19
2054 ft54 ft8:019:1010:18
2154 ft54 ft8:009:0910:18
2254 ft54 ft8:019:0910:18
2354 ft54 ft8:009:0910:18
2454 ft54 ft8:019:1010:17
2554 ft54 ft8:009:0910:18
2654 ft54 ft8:019:0910:18
Last 0.26 ft8 ft1:452:002:15

Explore the Bound for Boston Marathon (Denver) course with the weather and your pace along the route, or compare it with other races.

Race Plan

Get your personalized Bound for Boston Marathon (Denver) race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

About the Bound for Boston Marathon (Denver)

The Bound for Boston Marathon and Half Marathon in Denver runs on a certified 1-mile loop around Northfield High School in the Central Park neighborhood. The marathon is USATF-certified and qualifies finishers for the Boston Marathon. The race caps entries at 75 runners per distance, starts at 6:30 a.m., and closes the course four hours later. Five Star NTP has run the Denver race every August since 2024 as part of its multi-city Bound for Boston series.

Bound for Boston Marathon (Denver) FAQ

When is the 2027 Bound for Boston Marathon (Denver)?

The 2027 Bound for Boston Marathon (Denver) will be held on Sunday August 1, 2027.

Is the Bound for Boston Marathon (Denver) a Boston Marathon Qualifier?

Yes, the Bound for Boston Marathon (Denver) is an official Boston Marathon qualifier.

What is the time limit for the Bound for Boston Marathon (Denver)?

The time limit for the Bound for Boston Marathon (Denver) is 4 hours.

What will the weather be like for the 2027 Bound for Boston Marathon (Denver)?

The forecast calls for a high of 86°F and a low of 60°F with a 5% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the elevation gain of the Bound for Boston Marathon (Denver)?

The Bound for Boston Marathon (Denver) course has about 857 ft (261 m) of climbing and 858 ft (262 m) of descent, and finishes near the elevation it starts. It is flatter than 83% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Bound for Boston Marathon (Denver) hilly?

Moderately. It has about 33 ft (10 m) of climbing per mile. The hardest mile is mile 18, with 54 ft (16 m) of climbing. The hills change finish times by less than 0.2% here, under half a minute for a 4:00 runner.

What is the weather usually like for the Bound for Boston Marathon (Denver)?

Over the 3 years racecast.io has race-day weather for (2024 to 2026), it averaged 67°F at the start and 84°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest Bound for Boston Marathon (Denver)?

Of the 3 years on record, 2026 was the warmest, reaching 89°F during race hours. The coldest start was 2025, at 60°F.

What was the windiest Bound for Boston Marathon (Denver)?

Of the 3 years on record, 2024 was the windiest, with wind averaging 11 mph during race hours. The calmest was 2025, at 8 mph.

Bound for Boston Marathon (Denver) weather history

Based on 3 years of data
Avg Temp
75°F
L:67° H:84°
RunScore
5
Conditions
Rain Freq
0%
0 of 3 yrs
Wind10mph
Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
72°/89°-
4
2025
partly-cloudy-night
60°/76°-
7
2024
partly-cloudy-night
69°/87°-
4