How to finish a sailboat race: the favored end, shooting the line and the rules

The short version

When you've finished

When any part of your hull crosses the finishing line from the course side. If you owe a penalty, you haven't finished until you've done your turns and crossed again.

The favored end

On an upwind finish, the end that's further downwind — the nearer one. That's the opposite of a start line. On a downwind finish, it's the end further upwind, which is again the nearer one.

The approach

Come in on the layline to the favored end, don't sail past it, and cross on the tack that points most squarely at the line.

The last few metres

Upwind, shoot the line: head up into the wind in the last boat length or so and let momentum carry the bow across. Too early and you stall short.

What counts as finishing

The racing rules define it simply. You finish when, after starting, any part of your hull crosses the finishing line from the course side — the side you approach from on the last leg. Sails, the mast, a bowsprit and the crew don't count; the hull does. Once you've finished, sailing back across the line doesn't undo it.

The definition has three exceptions. You haven't finished if, after crossing, you take a penalty, go back to fix a mistake in sailing the course, or carry on to another lap.

A finishing line is usually set between a staff on the race committee boat and a mark. While the committee boat is on station to finish boats, it flies a blue flag. Where the line sits varies:

• An upwind finish, at the end of a final beat, often near the windward mark. Common, because a beat sorts the fleet out.
• A downwind finish, at the end of a final run, near the leeward mark or gate.
• A reaching finish, off to one side of the course after rounding a last mark.
• At the start line, at small clubs with one committee boat and few marks.

The sailing instructions (SIs) say where the line is, what the finishing mark looks like, and whether any other mark must be left on a particular side. Read that paragraph before you launch: finishing through the wrong line is a common way to lose a good race. See also Sailboat racing courses.

The favored end of a finish line

Like a start line, a finishing line is rarely square to the wind, so one end is closer to you than the other. On a start line you want the end that's further upwind, because the race heads upwind from there. On an upwind finish it's the other way round. You're sailing up toward the line, so the end that's further downwind is the one you reach first. That's the favored end.

Picture two boats level with each other on starboard, each on the layline to a different end. The one heading for the downwind end has less beat left to sail, so it finishes first.

On a downwind finish you approach from upwind, so the nearer end is the one further upwind. Either way, the favored end of a finishing line is the closer one. To see it:

• Judge the line against the wind as you come up the last leg: which end looks lower, further down toward you? Perspective fools everyone from a distance, so look again as you get closer.
• Use what you already know. If you finish on the start line, the end that was unfavored for starting is favored for an upwind finish, and the same end stays favored for a downwind one — allowing for any shift since. The method is the one for the favored end of a start line.
• Watch the boats ahead. If boats at one end keep crossing ahead of boats that looked level at the other, that's your answer.

Then go there even if it's the far end from the committee boat. Sailors drift toward the boat end because that's where the horn is. The line doesn't care which end you cross.

The approach: laylines and traffic

A layline is the close-hauled course that carries you exactly to a point without another tack. A finishing line has two ends, so each has its own laylines. The ones that matter are the laylines to the favored end. If you get to the layline and then keep sailing, you've overstood: you have to bear away and reach in, and every metre past the layline is a metre sailed for nothing. More on that in Staying inside the laylines.

• Come in on starboard if you can. On starboard you have right of way over port-tack boats (rule 10), and in the last few lengths that's worth a lot.
• In a crowd, overstand slightly rather than tack short underneath. A line of boats on the layline leaves bad air below it, and a boat that tacks in there often fails to fetch and has to tack twice more.
• Duck or cross? On port, meeting a starboard boat near the line, a duck (bearing away behind its stern) usually costs a length or less and keeps you heading for the favored end. Tacking away costs two tacks if you then have to come back.
• Cross on the tack that's more square to the line. It has less water to cover. If the two are close, stay on starboard.
• Leading a rival? Stay between them and the line — tack when they tack. This is covering.

Shooting the line

Close to an upwind finish, you can gain a few feet by shooting the line. When your bow is about a boat length from the line, head up sharply toward the wind and let the sails luff. The boat stops sailing, but momentum carries it forward. Because you're now pointing almost straight at the line instead of 45° off it, the bow gets there sooner.

• It works when you're moving well, the line is close and the finish is tight.
• It costs when you start too early. A dinghy loses speed fast head to wind, and one that stalls short has to bear away and build speed again while the boat beside it sails past. In light air or a chop, shoot later or not at all.
• Keelboats carry far more momentum and can shoot from further away. Learn the distance in practice, and have the crew on the bow call the line.
• Don't go past head to wind. Then you're tacking, and a tacking boat must keep clear (rule 13).

On a downwind finish there's nothing to shoot. Steer the shortest way across, keep the sails full, and move crew weight forward to keep a planing dinghy's bow down. Don't pump or rock unless your class allows it (rule 42).

The rules still apply

You stay racing until you've finished and cleared the line and its marks, so the rules apply right through the finish.

• Mark-room applies at a finishing mark. Rule 18 is switched off at a starting mark, not a finishing one, and the committee boat counts as a mark. But it doesn't apply between boats on opposite tacks on a beat, so at an upwind finish port keeps clear of starboard under rule 10. See Mark-room.
• Luffing on the last leg. A leeward boat with luffing rights may head up toward the wind, but must give the windward boat room to keep clear as it does (rules 11 and 16). But a boat that became overlapped to leeward from clear astern, within two hull lengths, may not sail above its proper course (rule 17). Proper course here is the course you'd sail to finish as soon as possible. See Windward and leeward.
• Penalties must be done before you finish. Foul someone near the line and you can still take your penalty after crossing, but you haven't finished until you've done your turns, sailed completely back to the course side, and crossed again (rule 44.2). See Taking a penalty.
• Touching a finishing mark is a foul even after you've crossed, while you're still racing (rule 31). Take a One-Turn Penalty and finish again.
• Protests. If you think another boat broke a rule, hail "Protest" at the first reasonable opportunity. If your boat is over 6 m (about 20 ft), also show a red flag (rule 60.2). Some SIs also ask you to tell the committee boat as you finish.

After you've finished

• Listen for your horn. Most committees sound one for each finisher. If yours doesn't come, you may have crossed the wrong line or been scored over the line at the start. Ask once you're clear.
• Clear the line. Sail away from it, not along it. A boat no longer racing must avoid getting in the way of boats that are, if it reasonably can. Don't sail back through the line.
• Sign off if the SIs require it — hail your sail number, check in at the committee boat, or sign a sheet ashore.
• Note your place and who was either side of you, then check the results. If they look wrong, that note is what you take to the committee.

Three habits that save places

1. Count the fleet. Know how many boats are ahead and who's close behind. It tells you when to cover and when to take a risk.
2. Don't relax 50 metres out. More places change hands near the finish than anywhere but the start. Keep trimming and watching the wind until the horn goes.
3. In light air, keep the boat moving. Sail fast rather than high, and don't shoot early — a stalled boat may not get going again.

Doing it with Sail Tactician

Questions

Sources

Finishing, racing and proper course from the Racing Rules of Sailing 2025–2028 (the definitions Finish, Racing and Proper Course; rules 10, 11, 13, 16, 17, 18, 31, 42, 44.2 and 60.2; Race Signals for the blue flag), described in our own words. Finishing arrangements, sign-off and protest-reporting requirements are set by each event's sailing instructions. The favored-end geometry is the same as for start-line bias. Tactics from standard club-racing practice. Sail Tactician behaviour from the in-app User Guide, version 3.2.

What changed

• 2026-10-16First published.

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