The Start

Starting Line Geometry

The starting line is an imaginary line between two marks: the committee boat (or race committee signal vessel) at the starboard end and the pin (a buoy or small inflatable) at the port end. Your job before every start is to understand this line's relationship to the wind.

A perfectly square line is set perpendicular to the wind, giving no advantage to either end. In practice, lines are almost never perfectly square. When one end is closer to the wind than the other, that end is called the favored end or the end with line bias. The favored end gives you a shorter distance to the first windward mark.

To sight the line, sail along it on a close-hauled course from the pin toward the committee boat. If you can point above the committee boat, the pin end is favored. If you have to bear away to reach the committee boat, the boat end is favored. You can also luff head-to-wind on the line and see which end your bow points closer to — the other end is favored.

Line bias changes as the wind shifts. A five-degree shift can turn a neutral line into a heavily favored end. Keep checking the line right up to the start, especially in oscillating breeze. The line you assessed ten minutes ago may not be the line you start on.

Timing the Start

Most racing starts follow a 5-4-1-go countdown sequence. The warning signal comes at five minutes, the preparatory signal at four minutes, the one-minute signal removes the preparatory flag, and the start signal comes at zero. Each signal is marked by a flag and a sound (usually a horn or cannon).

A reliable countdown timer is non-negotiable. Start it precisely on the warning signal and verify it against the four-minute gun. Many watches and apps count down from five minutes and include audible alerts at key intervals. If your timer drifts even two seconds, your start can be ruined.

Use the early minutes to make practice runs at the line. Sail away from the line on a beam reach for a set time (say 30 seconds), then tack and come back. Time how long it takes to reach the line from different distances and angles. This gives you a feel for how much space you need.

The goal is to cross the line at full speed the instant the gun fires. That means you need to begin your final acceleration 10 to 15 seconds before the start — enough time to sheet in and build to target speed. Arriving at the line early with no speed is worse than being a boat length late at full pace.

Starting Strategies

The two classic strategies are a pin end start and a boat end start (committee boat end). A pin end start works when that end is favored or you want to go left on the first beat. You approach on starboard tack, harden up, and try to be the first boat at the pin with speed and room to tack if needed. A boat end start works when the right side is favored — you approach close to the committee boat and use its proximity for protection.

The port tack approach is a high-risk, high-reward move. Instead of joining the starboard-tack parade, you approach on port and look for a gap in the line. If you find one, you duck behind a starboard tacker and tack into the hole. If you don't find a gap, you're sailing the wrong way with seconds to go. This only works for experienced sailors in specific conditions.

Clear air is the single most valuable commodity at the start. A boat in the second row, buried in the dirty air and bad waves of the boats ahead, is losing from the first second. It's better to start slightly late in clear air than exactly on time in a traffic jam. Find a section of the line with space, accelerate into it, and protect your lane.

The barging zone is the area between the committee boat and the first starboard-tack boat approaching on a close-hauled course. If you try to squeeze between that boat and the committee boat from windward without rights, you are barging — and you will be protested. Stay clear of this trap by approaching on a close-hauled course or from below.

In large fleets, mid-line sag is common. The boats in the middle of the line tend to be conservative and hang back, creating a bow in the line. If you can hold your nerve and push to the line at mid-line, you may find yourself ahead of boats on either side simply because they sagged. Fleet size matters: in a 10-boat fleet, you can be more aggressive; in a 100-boat fleet, finding clean air is the priority.

OCS and Penalties

OCS stands for On the Course Side — meaning part of your hull, crew, or equipment was over the starting line at the moment of the start signal. The race committee watches the line and records any boat that is early.

An individual recall occurs when one or more boats are OCS and the race committee can identify them. The committee raises flag X (white with blue cross) and sounds one additional signal. If you hear this, check immediately — if it's you, you must return behind the line and restart. There is no penalty beyond the time lost, but every second counts.

A general recall happens when the race committee cannot identify all OCS boats, or a significant portion of the fleet is over. The committee raises the First Substitute flag and sounds two signals. The entire fleet must return and the start sequence restarts, usually with a tighter starting rule.

After a general recall, the committee often implements the I flag rule or the black flag rule. Under the I flag (round-the-ends rule), any boat in the triangle between the pin, the committee boat, and the first mark in the final minute must sail around one end of the line before starting. Under the black flag, any boat OCS in the final minute is disqualified from that race — no second chance. The black flag is the nuclear option, and it works: fleets become very conservative when it's flying.

If you realize you're OCS, don't panic. Keep sailing for a few seconds to clear the line area and the fleet, then dip back behind the line, cross it cleanly, and start racing. Your race isn't over — especially in a long series, recovering from an OCS and sailing well can still produce a decent result.