The IRON GRIDDLE Ultra returns to Percy Warner Park in Nashville, Tennessee on November 14th, offering runners three distinct challenges across the park’s extensive trails. This event includes a grueling 50K route with over 5,000 feet of elevation gain, a half marathon trail run known as The Hidden Owl Half, and a shorter but no less challenging 6 Mile course called Moss Monster. Percy Warner Park serves as an ideal setting for this race due to its varied terrain and well-maintained trails. On the morning of November 14th, runners can expect firm yet slightly soft trail conditions underfoot, with UV index at a low level that should not be overly concerning but still requires sun protection for longer distances like the 50K route. The IRON GRIDDLE has been an annual tradition since its inception in 2017. Over the years, it has raised significant funds and awareness to maintain trails within Percy Warner Park, focusing on invasive species removal and tree planting initiatives. The event attracts a dedicated community of runners who value both the physical challenge and the environmental cause. The IRON GRIDDLE course is meticulously designed with multiple loops through scenic landscapes. For the 50K route, participants begin by running counter-clockwise for the first half before switching directions to complete the second half clockwise, finishing at the Steeplechase section of the park near Belle Meade Blvd entrance steps and Doom Hill overlooks. The Hidden Owl Half follows a similar pattern but covers less ground in total distance while still offering substantial elevation gain through loops within Percy Warner Park. Weather forecasts for November 14th predict firm trail conditions with UV index at level two, ensuring runners encounter neither overly soft trails nor excessive sun exposure on race day. Temperatures are expected to range from mild morning chill to comfortable daytime highs, suitable for long-distance running without extreme heat or cold concerns. The IRON GRIDDLE Ultra offers three challenging distances: a 50K route with over 5,175 feet of elevation gain; the Hidden Owl Half covering approximately half marathon distance and featuring just under 2,400 feet of ascent; and Moss Monster, the shorter but still demanding six-mile loop. Registration for these events can be completed at [https://ultrasignup.com/register.aspx?did=134692](https://ultrasignup.com/register.aspx?did=134692) with fees set accordingly: $90 for the 50K, $70 for the half marathon, and $50 for those opting to run six miles. Bib pickup will occur at Percy Warner Park on November 13th from noon until 8pm. Participants looking to start early should plan their arrival well before race day’s scheduled times, which are typically around 7am sharp for the longest distance and later starts as distances decrease in length. The race begins near Belle Meade Blvd entrance within Percy Warner Park itself, with strict age requirements of at least 18 years old for all categories. The IRON GRIDDLE Ultra • 50K • TRAIL HALF • 6 MILE event will take place on November 14th, in Nashville, Tennessee. This race is a testament to the strong local commitment towards preserving and enhancing Percy Warner Park’s natural beauty through dedicated trail running efforts that benefit both participants and environmental causes alike.
50K 50K • Start: 07:00:00 • Fee: $90.00
Trail Half Start: 09:00:00 • Fee: $70.00
6 Mile 9.7K • Start: 09:30:00 • Fee: $50.00
Races Offered
50K
Nov 14, 2026
straighten
Distance —
50K
terrain
Type —
Running
timer
07:00
sell
$90.00
Trail Half
Nov 14, 2026
straighten
Distance —
21.1K
terrain
Type —
Running
timer
09:00
sell
$70.00
6 Mile
Nov 14, 2026
straighten
Distance —
9.7K
terrain
Type —
Running
timer
09:30
sell
$50.00
Weather History
These values represent the 3-year monthly averages for November in Nashville.
thermostatTemperature
7.1° / 16.9°
wb_sunnyFeels like
4.2° / 14.6°
light_mode
Avg sunshine hours
7h 18m
water_drop
Avg rainfall
3.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
10.4 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
71.2%
wb_twilight
Sunrise
07:24
nightlight
Sunset
17:39
About Nashville
Learn more about the host city, Nashville.
Nashville is the capital of the American state of Tennessee. With 716,000 residents in 2022, it is the state's largest city. Nashville is sometimes called the "Country Music Capital of the World" or more often "Music City, USA"; however, Nashville has done much to escape its country music image and become a regional center of culture and commerce. In fact, Dell, Nissan, and Amazon have all moved some operations to or near the city. The music is various; major rap artists and rock bands claim Nashville as their hometown, and the city is also the epicenter of the contemporary Christian music industry. Nashville has been the home of the world-famous Grand Ole Opry since 1925. Nashville also has a great bar scene. If you like to drink, you can go "Honky-tonking," also known as bar-hopping. This is the act of visiting and drinking at multiple bars in one evening or day.