Colorado QSO Party

Colorado's September party: CW and phone only, 64 counties, no digital.

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

When it runs

Second Saturday of September

1400Z Saturday → 0359Z Sunday

Times are UTC, as the sponsor states them.

Next runnings

1400Z Sat 11 Sep → 0359Z Sun 12 Sep · 13h 59m2027
in 329 days
1400Z Sat 9 Sep → 0359Z Sun 10 Sep · 13h 59m2028
in 693 days
1400Z Sat 8 Sep → 0359Z Sun 9 Sep · 13h 59m2029
in 1057 days
1400Z Sat 14 Sep → 0359Z Sun 15 Sep · 13h 59m2030
in 1428 days

Operating

Modes: SSBCW
Bands: 80m40m20m15m10m6m2m
Exchange: Colorado stations send RS(T) and county; others send RS(T) and state, province or DX.
Logs: no deadline or format recorded
Who can enter: Anyone, anywhere.

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off Grand Mesa Contesters of Colorado's own published rules. Link last confirmed 2026-10-15.
What the source says: Sponsor's own rules (https://coloradoqsoparty.org/getting-started/rules/), read 2026-10-15: 'second Saturday in September', 14:00Z Saturday to 03:59Z Sunday; 'Digital modes are not permitted'.
Recorded caveats: Dates are computed from the sponsor's stated rule; no 2026 date page was read.

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

Take it with you

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Add to Google Calendar puts the next running in as a single event. It is one event, not a subscription — come back for the one after it, or use the feed below.

Subscribe (iCal) carries this contest's runnings for the next twelve months as UTC instants and keeps them current. Apple Calendar, Outlook and Thunderbird take this address directly. Its identifiers are stable across deploys, so re-subscribing does not duplicate anything: https://contestclock.com/api/ics?id=colorado-qso-party

Google has no working one-click subscribe. Paste that address into Settings → Add calendar → From URL. Google then polls it on its own schedule, often 8–24 hours, and that cannot be forced — so use Add to Google Calendar above if you want the next running in your calendar now.