If a challenge counts more than 15 participating teams all teams are correctly listed as long as they are all at 0, i.e. until the end of the first day of the challenge.
But as soon as the first figures are recorded during the next stats update run only the first 15 teams are listed. I cannot think that this is done on purpose, therefore I think that isome quick fixing is needed.
As far as I am concerned it does not need any paging implementation, simply listing them all in a single page as during the "upcoming" phase is enough.

Thank you in advance. Jean.