What is rule 31 in sailing

Rule 31 in sailing is one of those basic rules from the Racing Rules of Sailing (RRS) put out by World Sailing. It says you just can't touch a mark that's part of the course while you're racing. If your boat does touch one, you gotta either quit the race or take a penalty. This applies to all marks—starting marks, rounding ones, finish marks—and it's there to keep things fair and the course boundaries clear.

What exactly does Rule 31 say?

Rule 31 is called "Touching a Mark." The main part goes: "While racing, a boat shall not touch a starting mark before starting, a mark that begins, bounds or ends the leg of the course on which she is sailing, or a finishing mark after finishing." So basically, no contact between the boat, the crew, or any equipment and those designated marks. The only time you're off the hook is if you're doing a penalty under Rule 44 (Penalties at the Time of an Incident) or if your boat is anchored or aground near the mark.

When does Rule 31 apply during a race?

This rule is active the whole race, from the preparatory signal until you finish and clear the line. Here's the breakdown:

Before starting: Can't touch a starting mark—like a race committee boat or a pin end buoy—before the starting signal.
During the course: No touching any mark that defines the course, like rounding buoys or gates.
After finishing: Once you've finished, keep off the finishing mark.

They enforce this pretty strictly to stop anyone from using marks for leverage or sneaking an advantage.

What happens if a boat touches a mark?

If you touch a mark, the rules are pretty clear. You either:

Retire from the race (that's DNS, DNF, or DSQ), or
Take a penalty as per Rule 44.1. Usually that means doing a Two-Turns Penalty (a 720-degree turn) as soon as you can after the incident. And you've gotta finish that penalty before you cross the finish line.

If you don't take the penalty after touching a mark, someone can protest you and you might get disqualified.

Are there any exceptions to Rule 31?

Yeah, a few specific ones:

Penalty taking: You can touch a mark while doing a penalty under Rule 44.1 (like during turns).
Anchored or aground: If your boat is anchored or aground and you touch a mark because of that, it's not a breach.
Force majeure: Rare cases where you're forced to touch a mark by something beyond your control—like another boat pushing you—a protest committee might let you off.

What is the difference between touching a mark and hitting a mark?

In Rule 31, "touching" and "hitting" are pretty much the same thing. The rule uses "touching" to mean any physical contact between your boat (hull, crew, equipment, sails) and the mark. Whether it's a gentle brush or a hard crash, it's still a breach. The key is any contact, no matter how light, and you've gotta take a penalty or retire.

How does Rule 31 interact with other rules?

Rule 31 works closely with a few others, especially:

Rule 44 (Penalties at the Time of an Incident): This is the one that lets you take a penalty for touching a mark instead of retiring.
Rule 18 (Mark-Room): This rule handles how boats interact at marks, but it doesn't override Rule 31. Even if you're entitled to mark-room, you still can't touch the mark.
Rule 11On the Same Tack, Overlapped): If another boat forces you into a mark, you might get exonerated under Rule 31, but the boat forcing you could get penalized under other rules.

Expert insights on Rule 31

"Rule 31 is one of the most straightforward rules in the Racing Rules of Sailing, but it is also one of the most frequently broken. Many sailors underestimate how easy it is to lightly brush a mark, especially in tight fleet racing. The key is to always give marks a wide berth and to be ready to take a penalty immediately if contact occurs. A 720-degree turn is usually faster and less damaging to your overall race position than a protest hearing." — Dave Perry, renowned sailing rules expert and author.

Data table: Common mark-touching scenarios and penalties

Scenario	Is it a breach of Rule 31?	Required action	Penalty if not taken
Boat's hull gently touches a rounding buoy	Yes	Take a Two-Turns Penalty (720°)	Disqualification
Crew member's hand touches the starting mark before the start	Yes	Retire or take penalty before starting	Disqualification
Boat's sail touches a finishing mark after finishing	Yes	Retire or take penalty	Disqualification
Boat is anchored and touches a mark due to current	No (exception)	None	N/A
Boat is forced into a mark by another boat	Yes (but may be exonerated)	Protest the forcing boat; may still need to take penalty	Forcing boat may be penalized

Checklist: How to avoid breaking Rule 31

Always give marks a wide clearance, especially in crowded situations.
Be aware of your boat's turning radius and the position of your crew and equipment.
Communicate clearly with your crew about mark proximity.
Practice mark-rounding maneuvers to reduce the risk of contact.
If you suspect a touch, immediately assess and take a penalty if necessary.
Know the exact location and type of all marks on the course.

Frequently asked questions about Rule 31

What counts as "touching" a mark?

Any physical contact between the boat (including hull, crew, equipment, or sails) and the mark. Even a light brush is considered touching.

Does Rule 31 apply to temporary marks or gates?

Yes, it applies to all marks defined in the sailing instructions, including temporary marks, gates, and even race committee boats if they are designated as marks.

Can I be penalized if another boat pushes me into a mark?

Yes, you still technically touched the mark, but you may be exonerated by a protest committee if you can prove you were compelled to touch it by another boat. You should still take a penalty to be safe, and then protest the other boat.

What if I touch a mark while taking a penalty for another incident?

If you touch a mark while taking a penalty under Rule 44.1, it is not a breach of Rule 31. However, if you touch a mark while taking a penalty for touching a different mark, you have committed a separate breach.

How quickly must I take a penalty after touching a mark?

You must take the penalty as soon as possible after the incident, and in any case before finishing the race. Delaying the penalty may result in disqualification.

Resumen breve

Regla 31: Prohíbe tocar cualquier marca del recorrido durante la regata.
Consecuencias: Si tocas una marca, debes retirarte o realizar una penalización de dos giros (720°).
Excepciones: Están exentos los toques durante una penalización o si el barco está fondeado o varado.
Importancia: Es una regla fundamental para la equidad y la seguridad en la navegación de regatas.