For the past few weeks I've been participating in @browery's Actifit tournament. Competitions like that, IMO is exactly what Actifit as a platform needs.
A few days ago I had an idea, that AFIT tokens could be used as a buy-in to such a tournament. @actifit could create a ticket on it's marketplace which, could cost, let's say 1000 AFIT. 10% of that could be used as a fee or burned. The rest could go to the prize pool.
Structure of the tournament
IMO the best way to do competition like that would be to measure participants' improvement and not the total activity count. How do we do that? Well, I see daily @pjansen's posts where he tracks all kinds of metrics. So I think he could easily pull out the average activity count for all the activity reports for each participant. This would be the base. And we would measure improvement. For example, @pjansen's average activity count is 10730. During the tournament we would calculate his score by dividing it by 10730. For example, if during competition he gets 12000 steps, his score would be 12000/10730=1.118
The tournament itself could run in 2 stages. In the 1st stage each participant competes with someone else each day (in random order like in @browery's #POLIAC league). And whoever has the better improvement (higher score) during that day - wins!
After the 1st stage (when all participants competed with each other) there would be elimination phase, where the top 8 participants compete with each other by rank (1st vs 8th, 2nd vs 7th, 3rd vs 6th and 4th vs 5th). Winners move on to the semi-final. Winners of that to the final!
Also, I think for the 2nd stage the base should be the average activity count of the 1st stage. Because participants with a lower activity average will have an advantage in the 1st stage (it is easier to improve from lower levels).
The prize pool could be divided between top 3 places. (50%/30%/20%). In addition to that @actifit could award the winner with 100% upvote and 2nd-3rd places with 75%-50% upvotes.