Dans le challenger il y a une erreur de comptage des points. Au lieu de 44 points il y a noté 34 points...

Depends what of the Challenger you are asking about as there is THREE of them:

1v1 (One on One) - as I understand depends on how few shots you take to win each match which means the lower your par the higher you rank, I have yet to lay this myself.

Hole-in-one - This is easy to understand as each time you get in the hole with just one shot you can advance to the next one until you miss and once that happens then you get to open the chest you last earned on the previous one shot hole, you can not open it later. Time limit per play is 16 hours. Played this once so far but recall it requiring a X Gold amount to continue on the shot and try again.

Single player hole to hole - Similar to Hole in one but you get to use any equipment you have and the fewest shots gets your more stars. You can go back to previous to improve the star rating to three if you did poorly and only can play to max par before you get nothing to show for it. Again this has a time limit of 16 hours per Free play, otherwise it is a ticket to try again instantly, no gold to play on.