ISIA Speed Test Tactics: Line, Inspection & Free Speed
If technique is the engine, tactics are the steering. The same skier, on the same course, can post times seconds apart simply by changing where they go. That’s why ISIA Speed Test tactics (line choice and course reading) are some of the cheapest speed available to you. It’s one of the six TTPPEE factors, and one of the most commonly neglected.
Line is free speed
Most instructors think about how to ski better. Fewer think about where to ski. Yet a good line costs you nothing (no extra fitness, no new skis) and can hand you a chunk of time you didn’t know was available. A surprising number of people leave that time on the table simply because they’ve never been taught to think about line at all.
Where the turn starts
The heart of GS tactics is when and where you start the turn. Start it too late, down by the gate where instinct tells you to, and you arrive at the next gate late, washing speed and scrambling to recover. Start it early, above the gate, and the turn is finished by the time you reach it, so you leave the gate already pointing where you want to go. That early, rounded shape is where technique and tactics meet: the skill to hold an edge is only worth as much as the line you apply it to.
A worked example: the gate above a roll
Here’s a situation that catches people out every season. A gate is set just above a roll: a point where the pitch steepens and the ground falls away on the far side. The tactical rule here is simple but easy to get wrong: you need to have all the direction you require by the time you pass that gate, because the moment you’re over the roll the slope drops away beneath you and there’s no more room to turn.
Go too direct into that gate, carrying too much straight-line speed and not enough change of direction, and you arrive on the back of the roll late in the line. Now you’re in trouble: the only way to stay in the course is to slam the skis sideways and scrub off speed to force the turn. It works, in the sense that you don’t miss the gate, but it’s expensive, and every hundredth you lose there you don’t get back. The frustrating part is that it’s entirely avoidable. Read the roll in inspection, commit to finishing your direction early, and the same gate becomes a place you carry speed through rather than fight against.
How we train the line: the rise-line drill
The most reliable way to groove a good line is with brush markers, and it’s a drill we lean on heavily in camp. The “rise line” is the imaginary line running straight up the hill from the gate, and the whole art of GS is starting your turn up at that rise line rather than down at the gate itself.
To make it concrete, we place a brush a few metres above the gate and another below it. The instruction is straightforward: head for the brush above the gate (that’s your entry point, where the turn begins) and finish the turn in the space between the gate and the lower brush. Do that and you’ve automatically taken a solid, rounded line that carries speed and sets you up for the next gate. The markers turn an abstract idea (“start earlier”) into something you can physically aim at, which is why the change tends to stick far faster than being told to start your turns sooner.
Inspection: you only get one run
This is where racing is fundamentally different from training, and it’s the part instructors most often underestimate. In training you get lap after lap to feel a course out. On test day you get one run that counts, and your job is to find the single fastest way down that one run, before you’ve skied a metre of it. That makes inspection a skill in its own right, and like any skill it’s trainable.
Everyone inspects slightly differently, and part of getting good is finding the method that works for you. Some skiers try to hold the whole course in their head, gate by gate. That’s powerful, but it takes a lot of practice to do reliably under pressure. Others break the course into sections and anchor their memory on the things that matter most: the key gates, the tricky combinations, the terrain features like our roll above that will punish a lazy line. Alongside that you’re making decisions about where to attack and take a risk, and where to hold your line and simply not lose time. You should know that plan before you’re in the start gate, not discover it on the way down. The official FIS giant slalom format the test is based on rewards exactly this kind of preparation.
Reading the conditions
Smart tactics also flex to the day. A line that works on grippy morning snow isn’t always the line for a firm, slick afternoon course, and where the course is set on the hill changes what’s possible. Reading those conditions and adjusting (which overlaps with the environment factor) is part of being tactically mature rather than just tactically tidy.
Sharpen your ISIA Speed Test tactics
Tactical naivety is one of the most common reasons people miss the standard, and it’s one of the quickest to fix once someone shows you what to look for. On our ISIA Speed Test camps we coach line and inspection alongside the skiing, comparing your line against reference runs on video so you can see exactly where the time is hiding. Get in touch if you’d like to find some free speed.
Common questions
Should I try to memorise the whole course?
You can, but you don’t have to. Memorising every gate is the gold standard and it’s worth building towards, but it takes real practice to do dependably when the pressure’s on. Plenty of skiers get more from breaking the course into sections and locking in the parts that matter: the key gates, the awkward combinations and the terrain changes. Use whichever method you can actually recall cleanly at the top of your run.
What’s the most common tactical mistake on test day?
Skiing too direct and starting the turn too late, so you arrive at the gate late in the line and have to slam the skis sideways to stay in the course. It scrubs off speed exactly where you want to keep it. The fix is starting your turns higher, above the gate on the rise line, so your direction is done before the gate rather than after it.
Can line alone really make me faster?
Yes, that’s the whole point. Line is free speed: the same skier, with the same fitness and the same skis, can be seconds quicker over a course purely by choosing a better path through it. It’s the cheapest time you’ll ever find, which is why we treat it as a core part of speed test preparation rather than an afterthought.