Single Hand Spey: The Casts Trout Anglers Skip

There is a widespread belief that spey casting requires a two-handed rod, a steelhead river and a particular kind of hat.

It does not. Every cast in the spey family works perfectly well on an ordinary nine-foot five weight, and they solve the most common problem in American trout fishing, which is that there is something behind you.

This is probably the most useful underused skill in fly fishing.

Why nobody does it

Partly vocabulary. The casts are named after Scottish rivers, taught in specialist shops, and demonstrated by people holding rods the length of a canoe. It reads as a separate discipline rather than as a set of tools available to anyone.

Partly the roll cast. Most trout anglers learn a roll cast, find it works, and stop there, never discovering that a handful of additional movements let them change direction, reposition an anchor and cover water without ever making a back cast.

And partly because the payoff is invisible until you have it. An angler who can only make an overhead cast simply avoids the water with brush behind it, and never notices how much water that is.

What you already know

If you can make a clean roll cast, you own both concepts.

The anchor is the line and leader on the water that the rod loads against. The D-loop is the curve of line hanging behind the rod that does the job a back cast does.

A single-hand spey cast is a roll cast where the setup moves the anchor somewhere new before you deliver. That is the whole addition.

How To Make a Single Handed Spey Cast

What changes on a one-handed rod

The casts are the same. Three things scale.

The D-loop is smaller, because you are carrying less line and the rod is shorter. That is fine. You are casting thirty or forty feet, not ninety.

Body rotation does more of the work. On a two-handed rod the lower hand pulls to drive the forward stroke. Without one, the power comes from turning your torso through the cast rather than from the arm alone. Anglers who try to make these casts with the arm only find them tiring and weak, and the fix is to rotate.

And the line hand becomes useful. A short haul at the moment of the forward stop adds meaningful line speed to a single-hand spey cast, exactly as it does to an overhead cast. Anyone who has worked through the double haul already has the motion.

The casts worth having

Two of them cover almost everything, and they are the same two recommended for two-handed rods.

A single spey, where the rod sweeps upstream in a continuous motion, the anchor kisses down near you, and the delivery follows immediately. Efficient, quick, and best with a floating line.

A double spey, where the line is drawn upstream, swept back downstream to lay the anchor below you, then brought around to form the loop and delivered. Slower, uses a sustained anchor, and far more reliable with a weighted fly or a light sinking leader.

Between them they cover both banks and both wind directions, and the choice is made the same way it is with two hands: the anchor has to end up on your downwind side.

Add a snap-T when you want a sustained anchor placed upstream, which is the common case when swinging something with weight on it.

Double Spey With A Single Hand Rod

Where it changes your fishing

This is the part that matters, because the casts are only worth learning if they open water.

Brushy banks, high banks and walls. The obvious one, and the reason to learn it. A stretch that looked unfishable because of a wall of alder becomes ordinary water. Related to the deliveries covered in tight quarters casts, but reaching considerably further.

Wading deep. When you are in to your chest, a back cast has nowhere to go but the water behind you. A spey cast does not care how deep you are standing.

Swinging soft hackles and small streamers for trout, which is a lovely and underrated way to fish a river and which involves making the same cast, at the same angle, dozens of times while stepping downstream. Doing that overhead all afternoon is tiring; doing it with a spey cast is not.

Repositioning a nymph rig. With weight on the leader, lifting everything into a back cast is both awkward and slightly dangerous. A single-hand spey picks the rig up, moves it, and puts it back down without ever throwing it past your head.

Changing direction on the swing. At the end of a drift the line is downstream and the next cast is across. A spey cast makes that change of direction in one motion, where an overhead cast needs a pickup and several false casts.

And the fatigue argument, which is real. Covering a mile of river with an overhead cast is a workout. Covering it with spey casts is a walk.

The swing, which is what this unlocks

Most trout anglers fish upstream with a dead drift, because that is what they were taught and it works. Swinging a fly is the other half of river fishing and almost nobody in America does it with a single-handed rod, largely because the casting is awkward overhead.

The method is simple. Cast across and slightly downstream. Let the current put a belly in the line and swim the fly across the river under tension. When it hangs directly below you, take two or three steps down and cast again.

That is it, and it has real advantages. You cover water systematically rather than picking at spots. The take is unmistakable, because the fly is on a tight line and a fish hits it going away. You are not managing drag, because the fly is meant to move. And it works when nothing is rising and you have no idea what is hatching, which is most of the time.

Soft hackles, small streamers and wet flies are the tools. A size 12 partridge and orange swung through a riffle in the evening is one of the oldest and most effective things you can do with a trout rod, and it asks nothing of your entomology.

The reason it pairs with these casts is that swinging means making the same cast, at the same angle, several hundred times in an afternoon while wading downstream. Overhead, that is work. With a spey cast, the setup and delivery happen in one flowing motion from wherever the line already is, with no pickup and no false casting, and you can do it all day.

The take, and doing nothing about it

Worth a warning, because the response people have is wrong and it is expensive.

When a fish takes a swung fly, the line is already tight and the fish is usually moving away from you. Striking, in the sense of lifting the rod, pulls the fly straight out of its mouth.

The correct response is to do nothing. Let the fish turn with the fly and let the line come tight against the reel on its own. Some anglers deliberately fish with a loop of slack held in the line hand and release it on the grab, so the fish gets a moment before it feels resistance.

This is genuinely difficult, because a hard take on a tight line produces a reflex, and the reflex is exactly wrong. It is worth rehearsing mentally before it happens.

Lines, briefly

A standard weight-forward trout line will make these casts, and you should start there rather than buying anything.

If you find them hard work, the usual reason is that the head of a modern trout line is long and delicately tapered, which is excellent for presentation and mediocre for loading a rod against an anchor. Shorter and heavier loads better.

The cheapest test is to try a line one weight heavier than the rod is rated for. If everything suddenly becomes easy, that tells you what the problem was. Lines built specifically for single-hand spey exist and are simply a shorter, more aggressive head on the same idea, and the reasoning behind them is the same as the reasoning in Skagit and Scandi heads, scaled down.

Light polyleaders are worth knowing about too. They add a short sinking section without the mass of a proper tip, which is about right for a five weight and a size 8 soft hackle.

Learning it

The one rule that matters: practice on water.

These casts load against surface tension holding an anchor. Grass does not grip, so there is nothing to load against, and you cannot practice this in a park the way you can practice an overhead cast. A pond, a slow pool, or any flat water will do.

Beyond that, the sequence that works is the same one used for two-handed rods. Get the roll cast genuinely clean first. Then add a single spey and accept that most of your early attempts will produce a blown anchor. Then a double spey, which will feel clumsy for a while and then suddenly will not.

Watch your anchor. Almost every failure is an anchor in the wrong place, either too far away, too close, or directly in the path of the forward loop.

Common faults, and what they mean

The failures are the same as with a two-handed rod and they announce themselves clearly once you know the vocabulary.

The line comes back and lands on top of itself, or the cast collapses with a sucking noise, means the anchor had too much line on the water. Strip in a couple of feet. On a single-hander the anchor should be very modest: the leader and perhaps a few feet of line, no more.

The cast goes out weakly and falls short means the D-loop never formed properly, usually because the sweep was too fast and ripped the line off the surface, or because you came forward before the loop had settled. Slow the sweep down.

The line hits you, or passes uncomfortably close, means the anchor is on your upwind side. Change casts or change shoulders. This is not a technique problem to work through, it is a setup problem to fix immediately.

The fly hangs up on the anchor and comes back with the leader tangled around it usually means the anchor landed directly in the path of the forward loop. Offset it a foot or two to your casting side.

And a cast that works beautifully three times and fails on the fourth is almost always inconsistent anchor placement rather than inconsistent stroke. Watch the water, not the rod.

Where it pays

Brown trout water in the East and Midwest is full of overgrown banks and undercut walls, and a great deal of the best of it goes unfished because it looks uncastable.

Swinging for steelhead on smaller rivers and Great Lakes tributaries can be done perfectly well with a single-hander, and many anglers prefer it on water that does not justify a full two-handed outfit.

Smallmouth bass rivers reward swinging a streamer down a run, which is exactly the repetitive across-and-down casting these techniques make effortless.

The gear

The rod you already own. Nine feet and a five or six weight is close to ideal, and there is no reason to buy anything before trying it.

Your existing line, first. Only consider a shorter-headed line or a heavier weight if the casts feel like hard work, and try going up one weight before spending money.

A light polyleader or two, if you want to swing something slightly subsurface without adding weight to the leader.

Polarized glasses, as always, and with a little more reason than usual, because these casts keep the fly at head height on your casting side during the sweep.

Flat water to learn on. A pond, a lake edge or a slow pool. Not grass.

A leader that is not too long, since a very long leader makes anchor placement unpredictable while you are learning.

And an afternoon with no intention of catching anything, which is the actual requirement. These casts take a couple of hours to become usable and a season to become automatic, and trying to learn them while fishing produces neither.

The short version

Spey casts do not require a two-handed rod. Every one of them works on an ordinary trout rod, and they turn brushy banks, deep wading and repeated across-and-down casting from problems into non-problems.

You already know the concepts if you can roll cast: an anchor on the water and a D-loop behind the rod.

Scale the loop down, drive the cast with body rotation rather than the arm, and add a short haul at the stop.

Learn a single spey and a double spey, place the anchor downwind, and practice on water rather than grass.

It is the most useful thing most trout anglers have never bothered to learn, and the clearest sign of it is that the water it opens up is water everybody else drives past.