Thinning the Herd challenge banner
Running Challenge · Presented by Altra

Thinning the Herd

Run as far as you can each week. Every Sunday, the bottom 25% are eliminated. Survive to reach the Grand Final and fight for the win.

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$2,279 AUD Prize Pool
Running Discipline
Long Grind Challenge Type

Prize Breakdown

Four identical prize packs, one drawn each week from the survivors. Week 4 awarded outright to the Grand Final winner.

Thinning the Herd prize pack, $2,279 AUD across 4 weekly packs
Weeks 1–3

Weekly Survivor Pack

  • Altra Experience Flow$269.95
  • 12-Month App Subscription$179.99
  • Harry's Tee$60.00
  • Altra Tee$60.00
Drawn at random from survivors each week
Week 4, Grand Final

Grand Final Pack

  • Altra Experience Flow$269.95
  • 12-Month App Subscription$179.99
  • Harry's Tee$60.00
  • Altra Tee$60.00
Awarded outright to whoever logs the most km in Week 4
Per-Pack Value

$569.94 AUD

  • 4 packs awarded over the challenge×4
Total prize pool across all 4 weeks
$2,279 AUD Total Challenge Prize Pool

Live entry count, deadlines and leaderboard available in the app.

The Format

Each week, log as many kilometres as you can Monday through Sunday. The bottom 25% get culled at 11:59 PM AEST Sunday. Survive three rounds to reach the Grand Final.

Week 1 Mon – Sun Bottom 25% culled. Survivors enter the prize draw.
Week 2 Mon – Sun Another 25% gone. Survivors back in the draw.
Week 3 Mon – Sun Field thins again. Survivors drawn one more time.
Grand Final Week 4 No cull. Most km's wins the final pack.

Challenge Rules

The Run

  • Goal: Log as many km as you can each week. Total weekly distance is all that matters.
  • One run per day. Multiple runs in a day combine into one daily entry; submit the most recent.
  • Outdoor running only. No treadmills.
  • Pace standard: 8:00/km or faster (calculated on elapsed time). Slower runs don't count.
  • No minimum distance, just don't finish in the bottom 25%.
  • Authenticity: All runs must be completed during the official challenge window.

Tracking & Metrics

  • GPS Wearable: Apple Watch, Garmin, Coros, Strava, any GPS-based tracker.
  • Required Data: The following must be visible in your activity:
    • Distance & Date
    • Pace & Elapsed Time
    • Cadence
    • Heart Rate (HR)
  • Weekly cutoff: 11:59 PM AEST Sunday. Results announced 12:00 PM AEST Monday.

Submission & Proof

  • Activity Data: Upload a screenshot of your activity summary for each run.
  • Activity Links: (Optional) A direct activity link (e.g. Strava) is preferred and helps speed up verification.
  • Grand Final tiebreaker: Longest single run in Week 4. If still tied, fastest average pace.

How To Enter

Download the Harry's Challenges app, sign up, and find Thinning the Herd in the live challenges feed. Apply to enter, then start logging your runs each week.

Enter in app
Show full disclaimer

By entering this challenge, you acknowledge and agree to be bound by all the rules and conditions stated above.

Participation is voluntary and at your own risk. By taking part, you confirm that you are in good physical health and assume all liability for any injuries sustained during your attempts. Hardcore Harry's AU PTY LTD reserves the right to disqualify any entry that doesn't meet the tracking standards or pace requirements. Repeated violations may lead to total removal from the challenge.

Survive the Cull.

Open the Harry's Challenges app, find Thinning the Herd, and start stacking km's.

Open in Harry's