@Kitoko wrote in the GP double-skip guide that "It could be possible to triple-skip but that will probably require having psychic powers or an unfathomable amount of luck" because "the result of such a gran prix would have a 5-way tie for 12 points".

That's not correct.

Let's count the total points distributed : 6+4+2+1=13. 13x5 = 65. 5x12 = 60. 65 > 60.

However, double-skip is in theory possible in the 4-races GP, where the total amount of distributed points is 52. You get 12, so this let 10 per AI. Very small margin for error. EDIT : but definitely possible to do in practice

Why not a 5 way tie for 13 then?

It would be impossible to get 13 points in 2 races.

Because triple skip means you have 0 points in the 3 races skipped ; and you can get a maximum of 12 in the two races you play by winning both.

EDIT : ninja'd

Sorry for the stupid question, I don't really understand how it works.