Dallas Marathon

Dallas, TX, USA · December 13, 2026
partly-cloudy-day47°·57° high·Breezy·Dry
9
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Dallas Marathon race day weather

partly-cloudy-day
47°at start
61° high
Breezy
Dry
Your goal
0:00:00

Cool start, warming finish

Runners will face temperatures starting at 47°F, rising to 57°F by race's end. Winds will be light initially, shifting to a headwind during crucial sections around miles 8, 16, and 19. With humidity at 63%, pacing should be conservative early to manage the warmth later on, especially through the rolling terrain and the 138ft climb at mile 21.

Race day forecast available in 19 days
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
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Dallas Marathon route and elevation

The Dallas Marathon course has about 569 ft (173 m) of climbing and 566 ft (173 m) of descent, and finishes near the elevation it starts. It is hillier than 66% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 21, with 147 ft (45 m) of climbing and a 2.6% average grade.

Biggest climbs

  • Miles 1.7 to 2.7: climbs about 80 ft (25 m).
  • Miles 3.2 to 7: climbs about 175 ft (54 m).
  • Miles 19.7 to 21.6: climbs about 155 ft (47 m).

What the hills cost

  • 3:30 on a flat course is about 3:31 here (1 minute slower).
  • 4:00 on a flat course is about 4:02 here (2 minutes slower).
  • 4:30 on a flat course is about 4:32 here (2 minutes slower).

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 Dallas Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
110 ft43 ft7:498:5610:03
222 ft15 ft8:009:0910:18
371 ft23 ft8:219:3210:44
442 ft53 ft7:549:0210:09
555 ft11 ft8:199:3010:41
668 ft5 ft8:299:4210:55
752 ft16 ft8:159:2510:36
812 ft39 ft7:508:5810:05
940 ft40 ft7:589:0610:14
1015 ft56 ft7:478:5410:01
1143 ft88 ft7:468:539:59
1220 ft38 ft7:539:0010:08
1310 ft11 ft7:569:0410:12
146 ft5 ft7:589:0710:15
1534 ft40 ft7:569:0310:11
1626 ft14 ft8:029:1110:21
179 ft19 ft7:559:0310:10
1812 ft9 ft7:589:0610:14
1915 ft16 ft7:579:0510:13
2027 ft55 ft7:508:5710:05
21147 ft9 ft9:0910:2811:46
2210 ft52 ft7:478:5310:00
233 ft27 ft7:518:5910:06
244 ft33 ft7:508:5710:04
253 ft21 ft7:539:0010:08
268 ft23 ft7:539:0110:08
Last 0.21 ft4 ft1:441:592:14

Explore the Dallas Marathon course with the weather and your pace along the route, or compare it with other races.

Race Plan

Get your personalized Dallas Marathon 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 Dallas Marathon

The Dallas Marathon has started and finished in Downtown Dallas since 1971, when local runner Tal Morrison founded the race with a $25 ad in Runner's World. It was known as the Dallas White Rock Marathon until 2012 and added BMW as title sponsor in 2016. The course leaves Dallas City Hall Plaza, crosses the Margaret Hunt Hill Bridge into the Design District, passes Highland Park, circles White Rock Lake, and returns through Lakewood and the Swiss Avenue Historic District to the downtown finish. It is a Boston Marathon qualifier and has run every December since 1976, missing only 2013 and 2020; race weekend also includes a half marathon, 10K, 5K and 50K ultramarathon. Wikipedia

Race weekend

Saturday, December 12
8:00 AM10K (6.2 mi)
8:10 AM5K (3.1 mi)
Sunday, December 13
8:00 AM50K (31.1 mi)
8:00 AMMarathon (26.2 mi)
8:00 AMHalf Marathon (13.1 mi)

Dallas Marathon FAQ

When is the 2026 Dallas Marathon?

The 2026 Dallas Marathon will be held on Sunday December 13, 2026.

Is the Dallas Marathon a Boston Marathon Qualifier?

Yes, the Dallas Marathon is an official Boston Marathon qualifier.

What is the time limit for the Dallas Marathon?

The time limit for the Dallas Marathon is 6.5 hours.

What will the weather be like for the 2026 Dallas Marathon?

The forecast calls for a high of 62°F and a low of 43°F with a 8% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the elevation gain of the Dallas Marathon?

The Dallas Marathon course has about 569 ft (173 m) of climbing and 566 ft (173 m) of descent, and finishes near the elevation it starts. It is hillier than 66% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Dallas Marathon hilly?

Moderately. It has about 22 ft (7 m) of climbing per mile. The hardest mile is mile 21, with 147 ft (45 m) of climbing and a 2.6% average grade. 4:00 on a flat course is about 4:02 here (2 minutes slower).

What is the weather usually like for the Dallas Marathon?

Over the 24 years racecast.io has race-day weather for (2000 to 2025), it averaged 46°F at the start and 57°F by a typical finish. Rain fell during race hours in 4 of those years (2007, 2011, 2015 and 2024).

What was the hottest Dallas Marathon?

Of the 24 years on record, 2008 was the warmest, reaching 74°F during race hours. The coldest start was 2003, at 28°F.

What was the windiest Dallas Marathon?

Of the 24 years on record, 2008 was the windiest, with wind averaging 21 mph during race hours. The calmest was 2024, at 3 mph.

Dallas Marathon weather history

Based on 24 years of data
Avg Temp
51°F
L:45° H:57°
RunScore
8
Conditions
Rain Freq
17%
4 of 24 yrs
Wind10mph
Dew41°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
30°/34°-
9
2024
fog
57°/68°Light
5
2023
clear-day
36°/49°-
10
2022
cloudy
52°/55°-
9
2021
clear-day
35°/51°-
10
2019
cloudy
56°/69°-
6
2018
cloudy
38°/46°-
9
2017
clear-day
38°/63°-
10
2016
cloudy
51°/65°-
7
2015
rain
52°/54°Light
9
2014
cloudy
62°/66°-
5
2012
cloudy
68°/70°-
4
2011
rain
42°/43°Light
8
2010
partly-cloudy-day
36°/46°-
9
2009
cloudy
47°/53°-
10
2008
cloudy
66°/74°-
4
2007
rain
40°/46°Light
9
2006
cloudy
46°/50°-
9
2005
partly-cloudy-day
36°/60°-
10
2004
clear-day
46°/67°-
8
2003
partly-cloudy-day
28°/52°-
10
2002
clear-day
45°/65°-
8
2001
partly-cloudy-day
32°/50°-
10
2000
partly-cloudy-day
49°/64°-
8