BestRacesroad · 5K · 1-mile fun run · Virtual 1 mile
=PR= Races: Monster Mash Dash 5K & 1 Mile
Build your free race-day pace plan| Distances | 5K, 1-mile fun run, Virtual 1 mile |
| Surface | road |
| Field size | 425 runners |
| USATF certified | No |
| Boston qualifier | No |
From the race's RunSignup listing, with field size from its posted results, last updated October 26, 2026.
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Race-day weather
What the weather did on October 24 in each of the last 5 years, measured at Vienna, 6.2 miles from Mc Lean.
| Year | High | Low | Rain |
|---|---|---|---|
| 2026 | 60°F | 36°F | none |
| 2025 | 60°F | 36°F | none |
| 2024 | 75°F | 55°F | none |
| 2023 | 59°F | 37°F | none |
| 2022 | 64°F | 42°F | 0.04 in |
Daily highs and lows, not start-line temperatures: most races start in the cool of the morning, closer to the low. Source: NOAA National Centers for Environmental Information, GHCN-Daily.
Stay near Mc Lean
Hotels and rentals in and around Mc Lean, VA.
Preset to race weekend, Oct 23 – 25.
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Race Pace Analyzer beta
Build your =PR= Races: Monster Mash Dash 5K & 1 Mile splits
This one already knows the course. Give it your goal time and it gives you every split to the finish, adjusted for this race's terrain and its usual race-morning temperature, plus a fueling plan and a check on whether the goal fits your fitness. It's free, and there's nothing to sign up for.
- Already loaded
- 5K
- ≈48°F on October race mornings
| Mile | Split | Elapsed |
|---|
Training paces for this goal
The everyday paces that build the fitness behind your goal, worked out from your target with the Daniels VDOT model. Save these for your next training block.
Treat these as a guide. Run easy days by feel, and adjust for heat, hills and how your legs feel that day.
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