How to Tie the OXO Hitch
Usage
The OXO hitch makes a dock line fast to a cleat one-handed and guaranteed to come off again, even after load. The name is the shape of the sequence: a round turn (O), a figure-eight crossing over the horns (X), and a closing round turn (O). It holds by friction alone, with no locking hitch — which is why it never jams and always releases.
It is the British RYA (Royal Yachting Association) method of securing to a cleat, taught alongside the standard cleat hitch as one of two recognised methods. Americans trained through the ASA usually learn the locked cleat hitch; British sailors the OXO. Both make a line fast to the same fitting, differing by one deliberate detail.
Common Uses
The OXO is a specialist, living on the water where speed, one-handed handling, and clean release matter more than maximum grip:
- Temporary mooring: a quick lock-off of a small boat to a dock cleat when you'll cast off again soon.
- High-tension stern-to (Mediterranean) mooring: mandated at many charter bases because it still releases under load, where a locked hitch would jam solid.
- Small-craft and spring lines: a fast tie-off for painters, with one-handed take-up or pay-out when single-handing.
Other Names
Category
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Similar Knots
Cleat Hitch vs. OXO Hitch
The standard cleat hitch finishes with an inverted locking half hitch — more resistance to shaking loose, but under heavy load that lock can jam so tight the line must be cut.
Round Turn and Two Half Hitches vs. OXO Hitch
A round turn and two half hitches locks positively on a crowded cleat but gives up the OXO's one-handed release under load.
Clove Hitch / Bowline vs. OXO Hitch
Off a cleat entirely, sailors reach for a clove hitch or the bowline's fixed loop around a post or ring, because the OXO does nothing off a cleat.
Security Level
Dressed correctly — enough crossings, and a closing round turn bedded under a long tail — the OXO holds strongly; sailors report it surviving storm-force gusts on boats up to 100 tonnes. But it is dressing-sensitive: too loose or with too few crossings it can slip, and a loose final turn can unwrap. This is a belay to a cleat, not a life-support knot — dress it well or it lets you down when the line goes slack.
Downsides
- Slips if under-dressed: too loose on an oversized cleat, or with too few crossings, it will not grip.
- Not for long-term unattended heavy mooring: for a large boat left in heavy weather, a locked cleat hitch or a round turn and two half hitches gives more shake-loose security.
- Loose final O: if the closing round turn is slack or the tail too short, it can partially unwrap — the most common complaint.
- Hungry for line: it uses more rope than a standard cleat hitch and can overflow a small or shared cleat.
History
The OXO is a modern name laid over a very old skill. Belaying a line to a cleat with figure-eight turns is centuries old and was long nameless: Verrill's manual describes "a few turns under and over and around a cleat... universally used by sailors," and The Ashley Book of Knots (1944) documents it only under the verb "to belay." The "OXO" name emerged in modern sailing instruction, tied to the British RYA tradition and set against the American "cleat hitch."
How to Tie the OXO Hitch
The standard RYA form, tied around a two-horned cleat with no locking hitch:
Step 1
Take a round turn around the base of the cleat, starting around the far horn — the one away from where the load comes onto the cleat. This is the first "O." Starting on the near horn instead can make the line jam.
Step 2
Bring the line up and across into a figure-eight crossing turn over both horns — the "X." In heavier conditions or on slicker line, add a second crossing (making it an "OXXO"; see below).
Step 3
Finish with another round turn to form the closing "O," snugging it so it beds down under the previous turn.
Step 4
Leave a lengthy tail and pull the standing part to set. Do not add a locking or finishing hitch — the RYA calls it "un-seamanlike," and it defeats the whole quick-release purpose.
If the figure-eight crossing is hard to picture from flat steps, the Knot IQ app shows the cleat belay in full 3D. Practise first on a length of 750 lb bushcraft paracord around a chair leg.
OXXO (Heavier Conditions)
The RYA-endorsed way to add security is more friction, not a lock.
Step 1
Take the first round turn around the far horn — the O.
Step 2
Make two figure-eight crossing turns over the horns instead of one — X-X.
Step 3
Finish with a closing round turn and a long tail; still no locking hitch.
Slipped-Bight Finish (Tidier Quick-Release)
Step 1
Tie a standard OXO.
Step 2
On the final wrap, pass a bight — not the end — through the last turn.
Step 3
Pull the standing part to release. It is a tidier, slightly more secure finish that still unties instantly, and it is not the same as the contraindicated locking half hitch.
FAQ
What is an OXO hitch?
A way of securing a line to a cleat, taught mainly in the British RYA tradition. The letters name the sequence — round turn (O), figure-eight crossing over the horns (X), closing round turn (O) — and it holds by friction with no locking hitch, so it never jams and always casts off, even under load and one-handed.
What's the difference between an OXO and a cleat hitch?
The locking hitch. The standard cleat hitch (American ASA) finishes with an inverted locking half hitch; the OXO (British/RYA) leaves it off, so it can never jam under load and releases instantly.
Should I add a locking hitch to my OXO?
The RYA says never: a locked cleat hitch can cinch so tight under load that the only way off is to cut the line, which has injured and killed people. Add friction (OXXO or extra base wraps), not a lock.
Is the OXO strong enough to trust?
For its job, yes — one sailor reports using it on boats up to 100 tonnes through 80-knot gusts. There's no breaking-strength test because the failure you worry about on a cleat is slipping or the cleat pulling out, not the knot breaking.
Why does the last O keep coming loose?
Almost always because the closing round turn is left slack or the tail is too short. Bed the final turn down under the previous one and leave a lengthy tail.
Can you really tie an OXO one-handed?
Yes — you can tie it, take up or pay out slack, and cast it off with one hand while the other manages the boat.
Important Notes on Safety
The one serious hazard is not the OXO itself but the locking hitch it deliberately leaves off. Once a locked cleat hitch has cinched under load, the only way off can be to cut the line — and people have been seriously injured and killed cutting lines under pressure. Never add a locking hitch to a line you may need to release under load; add friction (OXXO or extra base wraps) instead. Otherwise, mind the OXO's limits: it can slip if tied loosely on an oversized cleat, and it is not meant for long-term unattended mooring under heavy load — leave a long tail and match the crossings to your line and cleat.
