Skin to Ski: Single Rips
At the top of each climb, a skimo racer must switch from uphill skinning to downhill skiing and do it in less than 30 seconds to be competitive.
With enough practice with the right gear, a skin-to-ski transition can be done in less than 20 seconds. Think of 40 seconds as a maximum.
The following method is one of many. Different body mechanics and levels of flexibility may require some adjustments. Practice it a lot, and then make it your own.
Entering a transition zone is similar for every type. Review the entrance process as part of practicing each transition type.

When your boots lock, your hands will be close to your bindings. Take advantage of their proximity. Reach back to open the heel piece of the left-hand binding. At the same time, extend your right arm for balance.
But don't try and open both bindings at once. That makes you crouch on two tip-toes which is unstable. Falling over wastes time.

Press the tip and tail together, but make sure the tail overhangs the tip by a couple of inches. The overhanging tail has two purposes:
- It's easier to grab the exposed tail and separate the glue at the next transition; and
- The overhanging tail can thaw next to your torso. (See step #[two below this one])

With the skin folded once and grasped in the middle, the skin will fold a second time as it goes into the skin pocket. Position the skin so that the overhanging tail is against your torso. That way your body heat will melt any snow or ice on the tail and your base layer will absorb the moisture. With the next application, there's a much better chance of good adhesion.
Do not put skins in your pack. Taking your pack off is a total waste of time, and your skins won't thaw. Wasted time and icy skins ruin races.
Here you may be wondering: What about the toe piece? 🤔
When skinning, the toe pieces on your bindings should be locked. On a typical tech binding, this means that the lever in front of your toe is pulled up one or two clicks.
When skiing, the toe piece should be unlocked (lever down) so that the bindings will release in a crash. If the toe is locked, the binding won't release.
But most skimo racers leave their toes locked throughout a race... Why?
Again, it comes back to time. Unlocking and relocking your toes with each transition slows you down. And (in theory at least) race skis are so short and flexible, there's likely to be less leverage at work tearing your knee apart.
So you decide: It's time or tendons.
Ripping the second skin is the same process as the first. Here's a condensed version of the sequence.
Exiting a transition zone is similar for every type. Review the exit process as part of practicing each transition.
The following video breaks down the Skin to Ski skimo transition according to the above instructions.
The Skin to Ski skimo transition with single skin rips (and techno!)