it was a random number selection, this means EVERYONE had a chance to win to all who entered.
Personally i did not want to make a competition where the person with like the best gear had a 99% chance of winning.
The way i did it was to give a higher chance to players who did it at lower levels, but players such as I, who use axes and do not have "gosu" equipment costing ~20k could still have a chance.
so lets say only 4 people entered. (this is just an example)
Paparick: gets 5k at level 1 = 99 tickets. wins if number drawn is between 1-99
mclarke: gets 5k at level 66 = 34 tickets. wins if number drawn is between 100-133
Z_E_R_O: gets 5k at level 35 = 64 tickets wins if number drawn is between 134-197
phobiac: gets 5k at level 33 = 67 tickets. wins if number drawn is between 198-264
Total tickets = 264.
chance of player winning = amount of tickets they have over total (i.e i would have 34/264 chance)
Lets sat Paparick got the random number and it was 155, Z_E_R_O would win, even though paparick had the best chance to win.
It was explained fairly clearly

Just to let you know, Toomin got a 5k at ~level 15, which if it was as you said, would have taken the prize.