Winner and follow-up have the same score but there will never be the same pay-out. There must have been a scorecard play-off, but there's hardly a way to look into that.
The amounts of 270 cr for 1st (18%) and 162 cr for 2nd (10,5%) are consistent to a total pay-out of 1500 cr for 70 players. Alas, they are mixed up.
In the activity log of the other player, I see that he was given the notice, "...came in first place in July Wolf Creek Single Play 9 Hole".
I'd say, WGT most likely botched the leaderboard positions.
Hate to tell you that you didn't win this tournament.