Duck Island Summer Mile # 2
Listed in our event index as Duck Island Summer Mile # 2.
Road, trail, gravel, MTB — you name it, we've got it. Find something worth telling your friends about.
With over 85,000 events in 2026, we have the largest endurance event database on the planet — built to be the fastest way to find a race near you.
Listed in our event index as Duck Island Summer Mile # 2.
Listed in our event index as Tour de Pain.
Run the Tunnel is a 3.8-mile road-and-trail race held annually in Natural Tunnel State Park, Duffield, Virginia, starting at 9:00 a.m. Positioned between a 5K and a longer trail race, it offers an accessible challenge for newer runners while deviating from a standard road-race format. The State of Franklin Track Club and the Scott County Chamber of Commerce organize the event, which is included in the track club’s King & Queen and Trail Series competitions. The course utilizes the park's natural setting, distinguishing it from a typical city loop. Awards are presented to overall male and female winners, as well as Masters, Grandmasters, and Senior Grandmasters. Age-group awards are given three deep for categories from 19-and-under to 80-and-over. Instead of standard medals or trophies, awards reflect the race theme; one recent edition featured handmade zebra-print seat covers for a "You’ve Earned Your Stripes" theme. All participants receive a race shirt, and the affordable entry fee aligns with the event's local, club-run tradition.
Running: Locals run the Kingsport Greenbelt when they want steady Z2 without fuss, and the paved path follows the Holston River for more than 9 miles. Tweetsie Trail gives runners a 10-mile rails-to-trails option when legs want packed rock instead of pavement. State of Franklin Track Club keeps the scene connected, and SFTC track nights cover 100 m, 200 m, 400 m, 800 m, and the mile. Downtown Kingsport owns the fast stuff with Run The Streets 10K/5K. Crazy 8s 8K brings the late-night anchor event into J. Fred Johnson Stadium.
Cycling: Locals ride with Tri-Cities Road Club, and TCRC has pulled Johnson City, Kingsport, Bristol, TN, and SW Virginia riders together for 30+ years. Tweetsie Trail suits gravel riders because the former railroad line rolls on a gradual tread of packed rock. Kingsport Greenbelt works for easy spins along the Holston River. Tannery Knobs Mountain Bike Park gives mountain bikers 40 acres of wooded terrain, off-road trails, and paved pump tracks. Holston Mountain points riders toward the climbs, and the Holston Mountain Rd to Camp Tom Howard Rd gravel route runs 25.9 miles. Tour de Possum is the anchor ride.
Season: Late summer is the clean pick for a Kingsport-Bristol training trip. Locals stack base miles early, keep intervals honest, and leave room for brewery legs after the work is done. Summer riding can mean road, gravel, MTB, and even a cyclocross brain if SORBA Trail Fest is on the calendar at The Camp at Buffalo Mtn. Winter details are not pinned down in the brief, so locals keep the plan simple. Runners lean on the Greenbelt, Tweetsie Trail, and SFTC miles. Cyclists keep the road bike ready but give Tannery Knobs and Winged Deer Park more attention when conditions fit.