The Half-Pass in Trot and Canter

The half-pass is the lateral movement in which the horse travels forward and sideways across the arena on a diagonal line, bent around the rider’s inside leg and flexed in the direction it is travelling, with the body nearly parallel to the long side and the shoulders fractionally leading. It is ridden in collected trot or collected canter, enters the tests at US Third Level, British Medium and German M, and remains in every test to Grand Prix, where it culminates in the canter zig-zag. Technically it is travers ridden on a diagonal line instead of along the wall — the competition form of the lateral family rather than a new movement.

Travers ridden on a diagonal

The geometry is inherited directly from travers: the horse is bent around the rider’s inside leg, flexed toward the direction of travel, and displaced sideways at a comparable angle. What changes is the line. Travers borrows the wall; the half-pass crosses open arena on a diagonal, with nothing to orient either end of the horse. The rider alone is responsible for the line, the angle and the parallel position of the body, which is why a horse whose travers is secure can still produce an insecure half-pass.

Two positional details carry most of the marks. First, the body remains almost parallel to the long side throughout, with the forehand marginally leading; the FEI’s judging guidance is explicit that the quarters must never arrive first. Second, the movement must genuinely travel: the FEI manual stresses that impulsion, and especially the engagement of the inside hind leg, must be maintained so the shoulders stay free and mobile. A good half-pass flows sideways with reach, cadence and an uphill tendency; a laboured one is pushed there stride by stride, and every quality beneath it on the training scale shows the strain.

The half-pass is also the point of the whole lateral progression. Leg-yield teaches the sideways response, shoulder-in adds bend and begins loading the inside hind, travers turns the bend toward the direction of travel — and the half-pass combines all of it on a line with no wall for support. Riders who struggle with it are conventionally sent back down that chain, as the lateral work hub sets out.

Not a leg-yield

The half-pass is persistently confused with the leg-yield because both cross the arena on a diagonal. The distinction is absolute. In leg-yield the horse is straight in its body and flexed slightly away from the direction it is moving; in half-pass it is bent through the body and flexed toward it. Leg-yield can be ridden in an ordinary working trot by a horse with no collection at all; half-pass exists only out of collection, which is why the two movements sit several levels apart. A “half-pass” in which the bend has quietly disappeared has not become a bad half-pass; it has become a leg-yield, and is marked as neither.

Trot half-pass and canter half-pass

The two paces make different demands, and tests treat them as different movements.

The trot half-pass is the crossing pace. The outside legs cross in front of the inside legs, and the qualities on show are reach, suppleness through the body, and the maintenance of cadence while the horse is bent and displaced. Because the trot is a symmetrical, two-beat gait, the trot half-pass tolerates — and rewards — steep angles: the deep, ground-eating trot half-passes of the Grand Prix are among the sport’s most photogenic movements.

The canter half-pass crosses nothing: the canter’s leaping, three-beat mechanic does not allow the legs to interleave. Its quality is instead the quality of the canter itself carried sideways — the jump of the stride, the ground covered per stride, the uphill balance and the purity of the three beats, on the standard of the canter. The movement also leads directly to the sequence work: from Prix St Georges the canter half-passes finish with a flying change, and at Intermediate I they fuse with the changes into the zig-zag. In freestyles, riders may also show half-pass in passage, a permitted difficulty-raiser the set tests never ask.

Steepness: the difficulty dial

Between its first appearance and Grand Prix, the half-pass does not change in kind; it changes in gradient. The steeper the line, the more sideways ground per stride while keeping the bend, the parallel body and the rhythm intact — so the levels turn a single dial.

Exact placements vary by country and test cycle, as mapped in the level equivalence chart; the dial itself does not.

The zig-zag

The counter-change of hand (half-pass one way, then the other) becomes, in series, the zig-zag: several half-pass segments across the centreline with a change of bend at each turn. In canter, every change of direction also requires a flying change, making the movement a compound test: lateral bend, a moment of genuine straightness, a clean change, the new bend, repeated to a prescribed geometry.

At Intermediate I the segments are defined by distance either side of the centreline; at Grand Prix, in recent test editions, by stride count — conventionally a short first segment, equal long middle segments and a short final one, with the last change falling at the prescribed marker (test sheets are revised periodically, so the current sheet governs). The rider is counting strides while managing bend, and judges assess exactly what the counting protects: equal segments, symmetry either side of the centreline, visible straightness before each change, clean changes, correct placement. They deduct for zig-zags that are badly placed, not equidistant from the centreline, too steep to stay fluent, or barely sideways at all.

The aids in overview

Doctrine varies in detail between schools, but the conventional description runs as follows. The movement is prepared like a travers: a half-halt, inside flexion, and the shoulders positioned fractionally onto the intended diagonal so the forehand leads from the first stride. The inside leg at the girth maintains the bend and the forward impulse; the outside leg, behind the girth, asks the quarters sideways; the inside rein indicates the flexion while the outside rein regulates the bend and controls the shoulders; the rider’s weight shifts slightly into the direction of travel. The finish is part of the movement: the horse is straightened deliberately onto the new line, not allowed to drift off the position. None of it works unless the horse is genuinely between inside leg and outside rein and honestly on the bit — which is why trainers treat a failing half-pass as a diagnosis rather than a fault in itself.

Expression: what the crossing foreleg shows

The trot half-pass supplies one of the sport’s signature images (the moment of full crossing, outside foreleg reaching across in front of the inside) and sale videos use it accordingly. It is worth being precise about what the image proves. Generous crossing shows freedom of the shoulders and reach; those are real qualities. It does not show bend through the body, engagement of the inside hind leg, or uphill balance — a horse can cross spectacularly while falling over the outside shoulder with the haunches trailing and the back tight. Judges score the whole picture: crossing with cadence, bend and engagement is expression; crossing without them is a photograph. The canter half-pass, with no crossing to dazzle, is often the more honest movement to assess.

Faults and what judges reward

The fault vocabulary follows the standard families, with the half-pass’s own classics on top:

• Haunches leading. The quarters arrive ahead of the shoulders — a preparation fault, and the most heavily punished; in the words of judges who teach the subject, it rarely scores above 6.
• Haunches trailing. The quarters never fully engage in the sideways travel, and the movement decays toward a leg-yield with cosmetic neck bend.
• Losing the bend. Usually together with too much neck flexion, which pushes the horse onto the outside shoulder; the bend must come from the body, not the neck.
• Falling sideways without engagement. The horse drifts to the marker on the forehand rather than carrying itself there — a collection fault, and the reason steepness without engagement never pays.
• Rhythm and impulsion losses. Faults low on the training scale outweigh everything above them: a fluent, modest half-pass outscores a steep one that loses the trot.
• Inaccuracy. Wrong start point, wrong end point, an unplanned angle — rider faults, marked against the geometry.

What earns high marks shifts up the levels. At the entry point, judges reward a clear, secure position and unchanged rhythm on a shallow line. Through the small tour, the standard adds steepness held with constant bend and, in canter, seamless joins to the changes. At Grand Prix, the zig-zag is largely a symmetry-and-straightness exam, and the trot half-passes are where expression — reach and cadence at maximum gradient — separates the field.

What the half-pass tells a buyer

On a sales video, the half-pass is a collection reading, not a crossing contest. The useful questions are whether the bend is through the body or only the neck, whether the hind leg engages or the horse merely drifts, and whether the rhythm survives the sideways travel — the same hierarchy a judge applies. A horse showing a secure, unhurried half-pass in both paces has demonstrably confirmed collection; a flashy crossing with trailing haunches has demonstrated a trot. How this evidence sits within evaluating the whole horse is covered in evaluating gaits and movement.

Sources

• Fédération Équestre Internationale — FEI Dressage Rules, 26th edition, 2026. https://inside.fei.org/fei/disc/dressage/rules
• Fédération Équestre Internationale — FEI Dressage Judging Manual (definition of half-pass and the zig-zag), effective 1 January 2025. https://inside.fei.org/sites/default/files/FEI%20Dressage%20Judging%20Manual%20-%20Effective%201%20January%202025.pdf
• Fédération Équestre Internationale — Dressage Tests, 2026. https://inside.fei.org/fei/your-role/organisers/dressage/tests
• United States Dressage Federation — Purpose of Tests (movement introduction by level), 2023. https://www.usdf.org/EduDocs/Training/purposeoftests.pdf
• British Dressage — Dressage defined (movement introduction by level), 2026. https://www.britishdressage.co.uk/get-involved/what-is-dressage/whats-involved/