UK Notice of race


Download the sailing instructions here : OSC_Sailing-Instructions_2020

Or read them below:

Notice of Race / Sailing Instructions – One Star Challenge 2020
rev. 2020-03-03                          

The idea behind One Star Challenge is to host a straightforward friendly race for Singlehanded sailors in the most beautiful waters of Denmark. We try to keep the number of rules to a minimum, but we still need a common set of ground rules. Our primary focus for these rules is to increase safety.

The race is carried out under flag and governed by the International Seaway Regulations (COLREGS) with the special regulations for navigation in certain Danish waters.

A race license is not required, and no corrected results are calculated based on ratings. This also means that we do not require sails to be measured, and you can bring as many as you like.

Participating boats are divided into races based on size (LOA, 1 foot = 0.3048m) and type:
Small, 18-25 feet
Medium, 26-31 feet
Large, 32 feet and up

The first boat for each race to cross the finish line is the winner.
The winner of each race will receive the race trophy from last year’s winner.
(The winner from last year is obligated to bring the trophy to Køge Sejlklub before the race starts – even if you are not racing this year.)

Safety equipment

We do not compromise on safety.

All participating boats must be in seaworthy condition and we reserve the right to reject boats/participants which we do not consider fit to participate in the race.

We also require all participants to bring/use the following safety equipment:

  • Approved life jacket must be worn throughout the race! (if inflatable a spare must be brought)
  • Jack lines must be rigged on deck and approved lifeline be available. We encourage the use of lifeline throughout the race and especially when moving on deck and during bad weather.
  • Functional VHF radio (portable accepted, incl. batteries for the entire race)
  • 2 handheld emergency flares and 2 emergency rockets, expiration date not to be exceeded.
  • Bailer/bilge pump
  • Fire extinguisher
  • Strong torch light and/or head lamp and an additional spare
  • Anchor with minimum 30 meters of anchor line/chain
  • First aid kit

Køge Sejlklub and One Star Challenge will perform safety inspections on all boats to the fullest extent possible. At the same time, we encourage participants to take their own safety seriously and comply with the rules above.

Navigation lights

All participants will experience sailing in the dark. Therefore, all boats must carry lanterns/navigation lights as described in the maritime regulations. Participating boats under 7 meters must comply with the rules for boats over 7 meters.

The use of engine

It is allowed to use the engine during the race for charging batteries without driving the propeller. It is also allowed to use the engine in the event of an emergency, to avoid collision or running aground, and to assist another vessel in distress.

Furthermore, the engine may be used while entering an emergency port from within a radius of 100 m from the port entrance.

Any use of the engine for propulsion should be noted and reported to the race office immediately after finishing the race.


All participants must have a shorecrew of one or more persons, which can contribute to the contact between the race committee and the participant. The shorecrew should also assist the participant by supplying weather reports, moral support, and guidance along the way. It is recommended that the shorecrew is knowledgeable about sailing and knows the participant well.

Contact information

When checking in at the Race Office the participants must state the following:

  • Own mobile number
  • Name(s) and phone number for shorecrew
  • Call sign/MMSI for VHF-radio


The race committee may at any time choose to postpone or cancel the race, if for example weather conditions are considered to be a risk to the participants.

Rounding direction

The rounding direction is decided by the race committee, taking the safest passage of the route into consideration. The rounding direction is announced at the skippers meeting Thursday evening.

Routes – The Classic

Møn on Port side (counter-clockwise):
Sailing from Køge Marina,
via Faxe Bay to Bøgestrømmen,
west around Farø,
via Grønsund – at the exit from Grønsund all boats are to round the red marker at position 54°49.782’N 12°11.359’E to the south,
passing Møns Klint,
heading for Stevns klint,
returning to Køge Marina.

Except for the deployed markers for start and finish line, no special race markers are used. Besides the red marker mentioned above no other markers are required to be rounded or passed in a specific way.

Møn on Starboard (clockwise):
The above route is sailed “backwards”

Routes – Big Boat

The Big Boat route is designed to accommodate those who are restricted by draft, and therefore cannot sail the passage of Bøgestrømmen.

Sailing from Køge Marina,
across Faxe Bay to Møns Klint,
south of Møn,
inbound via Grønsund – at the entry to Grønsund all boats are to round the red marker at position 54°49.782’N 12°11.359’E to the south,
below Farøbroen’s high bridge,
into Storstrøm where the danger marking at position 54 ° 57.736 N, 11 ° 53.898 E is rounded to port (counter clockwise),
then sailing back the same route through Grønsund, the Baltic Sea and Køge Bay.


The race can be divided into two or more offset starts.

The breakdown is decided by the race committee and will be used to create space on the starting line and to gather the arrivals back to Køge Marina. The final times for the starts will be announced at the skippers meeting on Thursday evening.

Start and finish line

The race committee establishes the start and finish line in the immediate vicinity of the piers at Køge Marina. Further information will be given at the skippers meeting on Thursday evening.

Starting procedure

Starting procedure for each start.
5 min. before start: Warning signal, Red flag – flag up, accompanied by sound signal
4 min. before start: Ready signal, Pennant P – flag up, accompanied by sound signal
1 min. before start: Ready signal, Pennant P – flag down, accompanied by sound signal
At start: Warning signal, Red flag – flag down, accompanied by sound signal

Do not make false starts! There is a long way around the course, and a few seconds will not matter. Any boat estimated to have made a false start will have 30 min. added to the sailing time.

Time limit

Sunday 12:00 a.m. is the time limit for completing the race. At this time no more boats will be allowed to finish.

Assistance and seamanship

Any participant in One Star Challenge shall, without undue delay, provide assistance to any person or vessel in danger or distress.

Each participant must also exhibit what is considered common seamanship towards other participants and other sailors along the way.


All boats are offered tracking in cooperation with KEEP SAILING. Tracking requires your own smartphone onto which an app is downloaded and installed.

KEEP SAILING is supported on both iPhone and Android. The participant must sign up for the event in the app by themselves. The participants should bring a powerbank in order to keep the phone charged during the entire race.

The aim is to make tracking with KEEP SAILING an interactive experience for the users who can share pictures, videos and descriptions from the trip, already while sailing. These functions are supported in the app.

Start numbers, race markings and advertising

All participating boats are obliged to mount start numbers and any advertising for the race sponsors, which is supplied at registration.

Disclaimer of liability

The participant confirms by registration that participation in the race is entirely at their own risk. Køge Sejlklub and One Star Challenge assume no responsibility for property damage, personal injury or death resulting from unfortunate incidents before, during or after the sailing.


Each participating boat must have a valid third-party liability insurance. Insurance policy to be presented at registration.


In the event of discrepancies between the translations, the Danish version of the sailing regulations will apply.