More than 6000 competitors completed the complete marathon distance at the 2009 edition, out of a field of over 12,000 runners.

Individual competitors can complete a maximum of 8 problems and solutions per packet.

Each competitor completes two runs, with their best time counting.

By the 7th Competition, the course used the original rules, which the competitors must complete the Stage under a certain time limit.

Individual competitors or Teams must complete a total of five events consecutively, in the order below.

The control card is marked by some means at each control point to show that the competitor has completed the course correctly.

Only 21 competitors of 33 starting completed the race, including all three Czechoslovak skiers.

The board breaks are designed to be difficult to further spread out competitor's scores, and competitors often do not complete all the breaks.

The 2010 polar challenge was the first time all competitors and teams successfully completed the entire race.

Both competitors had completed the 72 holes with at 283 (-1).