Great Falls Half (Half/10k/5k) 2026
- Date
- Saturday, November 21, 2026
- Start time
- 12:00 PM start (New York)
- Location
- Potomac, Maryland
- Entry fee
- From $55 · goes up to $85 on Oct 1, 2026
- Included with entry
- Includes a shirt
Registration is open.
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Official race websiteAdd to calendar: Apple or Outlook · Google
Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Great Falls Half Marathon | Half Marathon | Nov 21, 202612:00 PM | $70$85 after Oct 1, 2026 | – |
| Great Falls 10k | 10K | Nov 21, 202612:30 PM | $65$75 after Oct 1, 2026 | – |
| Great Falls 5k | 5K | Nov 21, 20261:00 PM | $55$65 after Oct 1, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Half Marathon fee goes up to $85 on Oct 1, 2026.
Race day planning
Entry fee schedule
- Great Falls Half Marathon: $70 until Sep 30, then $85 until Oct 24.
- Great Falls 10k: $65 until Sep 30, then $75 until Oct 24.
- Great Falls 5k: $55 until Sep 30, then $65 until Oct 24.
Online registration closes Oct 24, 2026, unless the race fills first.
How the price compares
At $70, entry is about the same as a typical half marathon in Maryland ($75).
What a typical finish looks like
A typical finisher at a half marathon in Maryland runs 2:09:10, about 9:51 a mile, based on 22 races with published results. Women typically finish in 2:18:15 and men in 2:00:23.
Light and altitude
Sunrise on race morning is at about 6:58 AM, and the Great Falls Half Marathon starts at 12:00 PM. The start sits about 340 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
Great Falls Tavern, Potomac, MD 20854
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Typical race-day weather
Around November 21 the day usually runs from 36°F at dawn to 52°F in the afternoon, with measurable rain on about 25% of days. Cold snaps dip to 28°F and hot years reach 61°F.
Based on 85 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- Great Falls Tavern, Potomac, MD 20854Map
- Course
- Road
- Start elevation
- About 340 feet
- Included with entry
- T-Shirt
- Distances
- 5K, 10K, Half Marathon
- Editions
- 2026 (Nov 21, 2026)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Great Falls Half (Half/10k/5k)?
- Saturday, November 21, 2026, starting at 12:00 PM.
- How much does it cost?
- Entry starts at $55 before processing fees, and rises to $85 on Oct 1, 2026.
- When does registration close?
- Online registration closes Oct 24, 2026, unless the race fills first.
- Is the entry fee high for Maryland?
- At $70, entry is about the same as a typical half marathon in Maryland ($75).
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- What distances can I run?
- 5K, 10K, Half Marathon.
- Where does it start?
- Great Falls Tavern, Potomac, MD 20854.
From the organizers
Great Falls Half, 10K & 5K
Saturday, November 21, 2026 · Great Falls Tavern, Potomac, MD
Run the C&O Canal towpath along the Potomac, starting and finishing beside Lock 20 at Great Falls Tavern. All three distances head south along the canal past Widewater, Old Angler's Inn and Carderock, then turn for home. The towpath is flat, shaded crushed stone that was built for mules and is perfect for a fast fall race. Late November is the towpath's best season: the crowds are gone, the air is cool, and with the leaves down you get long views of the river.