Shamrock Marathon

Virginia Beach, VA, USA · March 21, 2027·
partly-cloudy-day47°·48° high·Windy·Dry
9
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Shamrock Marathon race day weather

partly-cloudy-day
47°at start
50° high
Windy
Dry
Your goal
0:00:00

Cool temps, moderate wind effects

Runners will face a stable temperature trend, starting at 47°F and finishing at 48°F. With a moderate north wind peaking at 15 mph, participants should prepare for a mix of headwind and tailwind throughout the course. The humidity is relatively high at 72%, so adjusting pace early is advisable to conserve energy. A throwaway layer may be beneficial before the race due to a cool feels-like temperature.

Race day forecast available in 115 days
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
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Enter a finish time to see what race day does to it.

Common Goals:

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Shamrock Marathon route and elevation

The Shamrock Marathon course has about 124 ft (38 m) of climbing and 130 ft (40 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. It has no steep miles: no mile climbs more than 25 ft (8 m).

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 Shamrock Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
16 ft3 ft8:019:1010:19
25 ft11 ft7:599:0710:15
320 ft15 ft8:039:1210:21
414 ft19 ft7:599:0710:16
515 ft11 ft8:029:1110:20
623 ft20 ft8:019:1110:19
714 ft16 ft8:009:0810:16
814 ft14 ft8:009:0810:18
97 ft7 ft8:019:1010:18
108 ft14 ft7:589:0710:15
1114 ft13 ft8:019:1010:19
126 ft6 ft8:019:0810:17
1311 ft3 ft8:049:1410:22
146 ft18 ft7:579:0510:14
153 ft0 ft8:019:1010:19
161 ft0 ft8:019:1010:18
178 ft9 ft8:009:0810:17
187 ft1 ft8:039:1210:21
1921 ft25 ft7:599:0810:16
2015 ft21 ft7:599:0710:16
2118 ft12 ft8:049:1310:22
228 ft11 ft7:599:0810:16
230 ft1 ft8:009:0810:17
240 ft0 ft8:009:0910:18
257 ft7 ft8:009:0910:17
2614 ft13 ft8:019:0910:18
Last 0.21 ft0 ft1:462:012:16

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

Race Plan

Get your personalized Shamrock 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 Shamrock Marathon

The Shamrock Marathon is held every March in Virginia Beach, Virginia, as the flagship distance of a weekend that also includes a half marathon, 8K, and shorter races. The marathon starts near 42nd Street and Atlantic Avenue, runs along Shore Drive past First Landing State Park, and finishes on the Virginia Beach Boardwalk near the King Neptune statue. The course is USATF-certified (VA22041RT) and serves as a Boston Marathon qualifier. Source

Race weekend

Saturday, March 20
7:30 AM8K (5.0 mi)
Sunday, March 21
7:30 AMMarathon (26.2 mi)
7:30 AMHalf Marathon (13.1 mi)

Shamrock Marathon FAQ

When is the 2027 Shamrock Marathon?

The 2027 Shamrock Marathon will be held on Sunday March 21, 2027.

Is the Shamrock Marathon a Boston Marathon Qualifier?

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

What is the time limit for the Shamrock Marathon?

The time limit for the Shamrock Marathon is 7.5 hours.

What will the weather be like for the 2027 Shamrock Marathon?

The forecast calls for a high of 54°F and a low of 46°F with a 10% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the elevation gain of the Shamrock Marathon?

The Shamrock Marathon course has about 124 ft (38 m) of climbing and 130 ft (40 m) of descent, and finishes near the elevation it starts.

Is the Shamrock Marathon flat?

Yes. It has about 5 ft (1 m) of climbing per mile, and no mile climbs more than 25 ft (8 m). The hills change finish times by less than 0.2% here, under half a minute for a 4:00 runner. It is flatter than 83% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

What is the weather usually like for the Shamrock Marathon?

Over the 25 years racecast.io has race-day weather for (2000 to 2026), it averaged 47°F at the start and 53°F by a typical finish. Rain fell during race hours in 7 of those years.

What was the hottest Shamrock Marathon?

Of the 25 years on record, 2022 was the warmest, reaching 75°F during race hours. The coldest start was 2007, at 30°F.

What was the windiest Shamrock Marathon?

Of the 25 years on record, 2017 was the windiest, with wind averaging 21 mph during race hours. The calmest was 2009, at 1 mph.

Shamrock Marathon weather history

Based on 25 years of data
Avg Temp
50°F
L:46° H:53°
RunScore
8
Conditions
Rain Freq
28%
7 of 25 yrs
Wind12mph
Dew40°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-night
55°/72°-
6
2025
partly-cloudy-night
63°/71°-
5
2024
cloudy
57°/68°-
6
2023
partly-cloudy-night
42°/44°-
8
2022
partly-cloudy-night
65°/75°-
4
2019
partly-cloudy-night
41°/47°-
10
2018
cloudy
41°/46°-
9
2017
rain
36°/42°Light
7
2016
rain
47°/49°Light
8
2015
partly-cloudy-night
50°/51°-
9
2014
partly-cloudy-night
46°/48°-
9
2013
cloudy
43°/43°-
9
2012
partly-cloudy-night
54°/62°-
8
2011
partly-cloudy-night
43°/48°-
9
2010
clear-night
53°/68°-
8
2009
clear-night
30°/49°-
10
2008
rain
46°/50°Light
9
2007
partly-cloudy-night
30°/42°Light
9
2006
clear-night
38°/45°-
8
2005
rain
45°/49°Light
10
2004
cloudy
52°/62°Light
7
2003
partly-cloudy-night
48°/52°Light
9
2002
cloudy
48°/50°-
9
2001
partly-cloudy-night
43°/44°-
8
2000
partly-cloudy-night
45°/48°-
10