Same tack, overlapped — does leeward or windward have right of way?

When two boats are on the same tack and overlapped, Rule 11 applies: the windward boat must keep clear of the leeward boat. This is different from Rule 10, which only governs boats on opposite tacks — don't confuse the two when a crossing looks like a port-starboard situation.

📖 Want more situations like this one? Bryan Willis's The Rules in Practice 2025-2028 works through the rules as they happen round the racecourse. (affiliate link)

▶ Watch on YouTube ↓ Download (via YouTube)
<iframe width="560" height="315" src="https://www.youtube.com/embed/2pHbMgUso8w" title="Sailing Kiwi" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<p><a href="https://sailing.kiwi.nz/v/2pHbMgUso8w/">Source: Sailing Kiwi</a></p>

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Next on this shelf — The Upwind Beat