Question on Razer Squad Rewards - Claiming Time and Leaderboard posiiton

Could someone explain to me how the Razer Cortex Squad Rewards claiming time window / allocation works? This was our squad's first time participating, and looks like we've learnt some hard lessons when it comes to claiming.

So for instance, we will meet the criteria to claim at let's say 8pm for the 300 Silver / 180 hours. But at exactly 8pm the calculation would show that not all team members have completed the specific hour's gameplay / window - even though games were running at the time that the reward allocation time started. Then a few seconds later (after multiple refreshes) the time allocation for the entire squad will show updated, but by then the Silver had already been claimed? Is it based on the ranking of the squads that it opens up for first place first and then filters down? Cause it's definitely been a case that some are displaying eligibility whilst others have a delay before registering thus I can only assume it's based on leaderboard position?

Even the leaderboard is confusing as all squad members had been playing games at start time until end time for the daily window, but sometimes the squad will be in position 3 one day, the next day position 82, the next 20 and the next 8? SO not sure at all how the leaderboard is saved?

Does anyone know how this calculation for positioning and claiming works? Will definitely try a different approach as it seems the algorithm somehow delays some and other not?

Look forward to hearing your thoughts and experiences.

Happy gaming!

PS: Not complaining about Cortex Silver or being a sore loser for missing out, in fact very happy with this loyalty offering, just would love to understand the mechanics for future.