Register for the 2017 The Happiest Fun Run on Earth!

Shirts are no longer available during registration. You may check if there are any extra after the race.

The Happiest Fun Run on Earth
 Costume Run is the place to be on September 30, 2017!  

Whether you are a serious runner getting ready for a longer race or first time race entrant, we have a race distance for everyone - 10K, 5K, or 1 Mile Fun Run!   

Costumes welcome and encouraged! 

Open to all ages and abilities 

The 10K starts at 8:00 am

The 5K starts approximately 8:15am

The Fun Run starts approximately 8:45am


  • 10K (certification# VA17030RT) and 5K (certification# VA10056RT) USATF certified single loop course through beautiful residential area with rolling foothills. 
  • All runners must be able to complete the chosen course by 10:00am 
  • All run participants receive a cotton race T-shirt (Register early!  Late entrants or race day entrants are not guaranteed a T-shirt) 
  • All Fun Run participants receive a medal 
  • Post race snacks included with entry fee, and food for purchase 
  • Festival after the Fun Run! 
  • iPod use is allowed 
  • Strollers are welcome - Please start at the rear of the starting area 
  • Please no pets on the race course 
  • Bag drop will be available near the race start; please use the bag provided, race numbers will be written on the bags left at the bag drop



Fun Run: $20 until September 23, Late entrant - $22 until September 30 

5K: $23 until August 21, $28 until September 23, Late entrant - $35 until September 30 

10K $35 until August 21, $40 until September 23, Late entrant - $47 until September 30 

Race day registration available at the course 

Group discounts available for teams of 10 or more - 


Potomac River Running Store - Fairfax, 11895 Grand Commons Ave, Fairfax, VA 22030 on Thursday, September 28 from 5-7 pm

St Andrew the Apostle Catholic School, 6720 Union Mill Rd, Clifton, VA on Friday, Sept 29 from 5-7 pm.

Race Day at St. Andrews, 
6720 Union Mill Rd, Clifton, VA, starting at 7 am

Packets will not be mailed 


Awards for the top three overall male/female finishers in the 10K and 5K 

Awards for the top two male/female  finishers in the 10K and 5K by age category

Under 10
11-14 years
15-19 years
20-29 years
30-39 years
40-49 years
50-59 years
60-69 years
70+ years 

PARKING & START LINE: St Andrew the Apostle Catholic School, 6720 Union Mill Rd, Clifton, VA 

SPAGHETTI DINNER:  Carb up before the run! Pay at the Door Spaghetti Dinner on Friday, September 29. Spaghetti dinner is not included with race entry fee, $5 for individual/$25 for family. Dinner served from 5-7 pm at St. Andrews.  

PURPOSE: Formerly known as “Dash into the 80s”, this is the 10th annual run to benefit the school’s students.  Proceeds enrich the school’s academic programs, supplement the science program, improve athletic programs, increase technology in the classrooms, enhance library resources, and purchase art supplies.


Online registration for this event is currently closed