PROOF Challenge

M312 PROOF Edition

312 KM. ONE DAY. NO EXCUSES.

The island’s longest day. Finish the loop and earn your place in the record.

Type
distance
Target
312 km
Window
2026-04-25
Joined
1
Overview

The challenge

distance 312 km 2026-04-25 single effort completion → then → time

Some rides are training. Some rides are a statement.

M312 — PROOF Edition is built for one effort only: the full 312-kilometer loop in a single day. No shortcuts. No split attempts. No softened version of the story.

This is the kind of challenge that stays with you long after the finish line.

The mission

Complete 312 km in one ride on event day.

Rules

  • Challenge date: April 25, 2026
  • The full effort must happen in one single activity
  • Outdoor ride only
  • Joined athletes will have qualifying PROOF posts counted automatically
  • Completion comes first; ranking then reflects who finished and how they got there

The standard

Three hundred and twelve kilometers does not care how motivated you felt at breakfast. It asks one question: can you keep going when the day gets longer than your plan?

If you finish, it counts. If you post it, it lives.

No noise. No padding. Just PROOF.

Progress

Finish what you start.

0 / 312 km
Your PROOF posts will count automatically once you join.
Commit

No excuses. Just Proof.

This is not a segment chase. PROOF ranks finishers first, then rewards how they got there. Completion comes before noise.

Partner

Presented by

PROOF