Hill Valley 88 Miler ™

Wed, Oct 21, 2026, 8:00 AM EDT

Vibe analysis coming soon

Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.

Distances & registration

10 options

Registration for all distances is through the official signup link above.

0.25 Miles
Wed, Oct 21, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
0.5 Miles
Wed, Oct 21, 8:00 AM EDT · From $17.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
1 Miles
Wed, Oct 21, 8:00 AM EDT · From $27.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT

+ 7 more options

88 Miles
Wed, Oct 21, 8:00 AM EDT · From $82.68
Opens Jul 24, 2025, 10:05 AM EDT · Closes Nov 27, 2025, 6:59 PM EST
88 Miles
Wed, Oct 21, 8:00 AM EDT · From $82.68
Opens Jul 24, 2025, 10:05 AM EDT · Closes Sep 23, 2026, 7:59 PM EDT
The Clock Tower Challenge 🕰️
Wed, Oct 21, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
Week 2 - Battle of the Bands
Wed, Sep 30, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
Week 3 - 1.21 Giga-squats
Wed, Oct 7, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
Week 1 - Don't be a Slacker!
Wed, Sep 23, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT
Week 4 - Race to the Lone Pine Mall (10:04PM - 1:3…
Wed, Oct 14, 10:00 AM EDT · From $22.50
Opens Jul 24, 2025, 10:05 AM EDT · Closes Aug 24, 2026, 7:59 PM EDT

Serious Test

Based on terrain, weather, and distance data.

From the organizer

Run!

This is your course:

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Lower-difficulty races in the same state.

Higher-difficulty races in the same state.