Sat, Nov 7, 2026
Louisville, KY
Entry is $35 now and rises to $40 after Aug 31, 2026, so registering before then saves $5.
The course runs through the Louisville Zoo itself, following the path used for the zoo's Halloween event. That means you pass decorations and costumed characters as you go, which makes it feel less like a road race and more like a themed walk-through that happens to be timed. The surroundings are the zoo grounds, not streets or a park loop.
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Going by the 2025 results, this is a big field, and the spread of finish times is wide, so this is a mostly recreational race rather than one for club runners.
3K · 2025 results
Top 3: Ethan Ennis (9:20) · Tyrell Dowdell (9:55) · Dominic Byers (10:18)
The Throo the Boo 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 3K 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.
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Almost certainly not. Half the 3K field finished slower than 31:59, and the last recorded finisher came in around 2:33:37, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.
With 1,766 finishers there are runners at every pace, so you are never out on your own. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 3K, that spread matters more than the winner's time.
The 3K winner ran 9:20 while the median finisher took 31:59. That spread points to a broad, mostly recreational field rather than a race dominated by club runners.
