Pace line race

Have two lines, where a faster skater is paired up with a slower one. The faster skater gets the inside line.

Each pair of skaters seal together, and on the whistle, the back pair race to the front.

"Why is the fastest skater on the inside?" you might ask. The slower skater has to skate on the outside of the pace line, while the faster skater has to weave between the other sealed pairs in the pace line. So the faster skater has to travel further. Then when they get to the top of the line they reseal, and the next pair goes.

If you don't have a lot of people you can have a single pace line but alternate fast/slow people, so that when they get to the back you will have a pair of fast/slow people to race!

Also if it wasn't obvious by now: