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Amateur radio contests — all 260 computed from sponsors’ own published rules

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10-10 International Net · US

10-10 International 10-10 Day Sprint

24-hour all-mode 10-metre sprint on 10 October, the club's namesake date.

Rules at ten-ten.orgThe rules are the sponsor's. This page holds the dates and the facts.

When it runs

October 10, every year

  • 0001Z → 2359Z

Times are UTC, as the sponsor states them.

Next runnings

  1. → · 23h 58m2026

    in 8 days
  2. → · 23h 58m2027

    in 373 days
  3. → · 23h 58m2028

    in 739 days
  4. → · 23h 58m2029

    in 1104 days
  5. → · 23h 58m2030

    in 1469 days

Operating

Modes
SSB / CW / Digital / RTTY
Bands
10m
Exchange
Call sign + name + 10-10 number + QTH (state, province or country). Record 0 if the other station has no 10-10 number.
Power categories
QRP 10 WLow Power 150 WHigh Power
Logs
no deadline or format recorded
Who can enter
Anyone, anywhere.

10-10 rule 5.2.1: 'QSO Parties are open to all amateurs with operating privileges on the 10 meter band'. The membership requirement bites at log submission, not at participation, so this is a practical constraint rather than an entry bar.

Where this comes from

Checked against the sponsor
Yes. The rule on this page was read off 10-10 International Net's own published rules. Link last confirmed 2026-08-12.
What the source says
ten-ten.org QSO Party Rules 5.2.2: 'Sprint - a 24 hour event held on October 10th (10-10) - 0001 UTC through 2359 UTC.' 10-10's schedule page independently gives 'October 10, 2026'.
Recorded caveats
All modes, unlike the two phone-only QSO Parties. Chapter scores may not be assigned for the Sprint.

Something wrong? How to report it — a link to the sponsor's own page is all it takes.

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