There is always this one guy who does waaaaay more than the others, I am suspecting it could be the same person, since their names are hidden we can't really know if it is the same person or not but I always see a person who is doing waaaaay more than the second guy. Like is he really trying to participate in the races or is this dude is just gambling this way no matter what and the race happens to hit him while he is playing?
It is obvious that this gambler does not play for the contest. Because he could in the first prize with very lower wagering amount and I don't think he even care about the prize. The prize is less than 0.04% of the amount he wagered.