Sun, Sep 27, 2026
Reston, VA
Entry is $40 now and rises to $45 after Aug 28, 2026, so registering before then saves $5.
The course runs through a residential neighborhood near a high school, and it has earned a following among local runners who come back to it. It reads as a neighborhood road race, the kind where you are weaving through streets rather than looping a park, with a suburban character to it.
Free race emails
In for this one or still deciding, keep race season near Reston on your radar: a Monday look ahead and a Thursday rundown of the weekend's races.
Two helpful emails per week. No spam. Unsubscribe anytime.
Going by the 2025 results, this is a decent-sized field, with a competitive front end and a big recreational middle.
10K · 2025 results
Top 3: Alexis Giraudineau (32:23) · Gregory Mariano (33:09) · Cian Bell (33:47)
The =PR= Races: South Lakes 10K & 5K has been held every year since at least 2025. That is as far back as RunSignup's records for this race go, so it may well be older.
Enter a finish time to see where it lands against the most recent 10K results.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Traveling for this race? The map shows hotels and rentals in and around Reston — pan or zoom to compare what's nearby.
The map is provided by Stay22. If you book through it, RunSesh may earn a commission at no extra cost to you — it never affects the races we list.
Almost certainly not. Half the 10K field finished slower than 59:43, and the last recorded finisher came in around 1:46:11, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.
A field of 359 is big enough that you will have company at your pace without feeling lost in a crowd. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 10K, that spread matters more than the winner's time.
The 10K winner ran 32:23 while the median finisher took 59:43. That spread points to a mixed field, with a competitive front and a big recreational middle.
