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=PR= Races: Birthday Bash 5K

Ashburn, Virginia, United States

calendar_today 26 Jul, 2026

directions_run Running

sell $30.00 – $40.00

About the Event

Potomac River Running is turning 22! and we are ready to party! Join =PR= Fairfax and Celebrate our Birthday on Sunday, July 26!

Click for Packet Pick Up Details

Races Offered

5K

Jul 26, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

08:00

sell

$40.00

Virtual 1K

Jul 26, 2026

straighten

Distance — 1K

terrain

Type — Running

timer

08:00

sell

$30.00

Virtual 5K

Jul 26, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

08:00

sell

$40.00

1K Fun Run

Jul 26, 2026

straighten

Distance — 1K

terrain

Type — Running

timer

08:05

sell

$30.00

Weather History

These values represent the 3-year monthly averages for July in Ashburn.

thermostat Temperature

21.2° / 31.5°

wb_sunny Feels like

23.2° / 33.4°

light_mode Avg sunshine hours

11h 48m

water_drop Avg rainfall

4.5 mm

ac_unit Avg snowfall

—

air Avg wind speed

7.8 km/h (Light breeze)

opacity Sweat loss rate

Very high

terrain Course conditions

Hard and dry surface

sunny Max UV Index

Very High (8.0)

humidity_mid Humidity

73.7%

wb_twilight Sunrise

05:57

nightlight Sunset

20:31

About Ashburn

Learn more about the host city, Ashburn.

Fairfax, nicknamed Fairfax City by the locals, is the county seat of Fairfax County, in the state of Virginia. The city has roots dating back to the 1700s. It has character and an identity of its own not often found in the much newer and largely homogeneous exurban areas in Northern Virginia.