it's hard to guess all corrected First goal minute, HT, and FT predictions. seems impossible to exact corrected the winner. So far your games don't have the winner, maybe you have to correct the game to make it attractive, and choose the winner by points.
True, if the winner is the only one who have all correct prediction then I guess there will be no winners for too long time. There is no exact value of the prize (freebet) so it makes the contest less attractive. Betop needs to state the value of the freebet and change the type of prediction. Removing the first goal minute is better. Adding other info about the prize would be much appreciated as usually there is something like wagering requirement for the winning amount of the freebet. Unless there is no strings attached for the freebet then there is no need to add more information.