@Baladir, I will try and clarify. There are three counts known to be used by Ludia in Event and Battle Mode matchmaking.
By “Current Count” I am referring to your common "Battle Mode" trophy count. These terms are used interchangeably and refer to the same thing. This count was used for all matchmaking before Ludia began rigging the events. This is the most commonly referred to count and is the one used in establishing the trophy count leaderboard.
“Previous Event Count” is a new factor Ludia added into the Event algorithm to make match-making worse for event players. It is the accumulated count from a player’s last event. The developer intentionally obscures this number (no one can see it). The number will be extremely high for players who completed the previous event.
“Highest Trophy Count” is the highest Battle Mode count you achieved over the past two months.
Events rigging is achieved by using different counts when matching Battle Mode v. Event Mode players:
Battle Mode players are matched based upon their current trophy count aka “Battle Mode Count” which is always the lowest of these three figures.
Event Mode players are matched based upon the greater of either their “Previous Event Count” or their “Highest Trophy Count”. This number is significantly higher.
This allows Ludia to match stronger Battle Mode (free) players against much weaker Event Mode players (paying gems or gold). As an example I have added the profile of one of my recent opponents. I was in Event Mode while my opponent was in Battle Mode. I was matched based upon my Highest Score (approx, 4400) against this opponents Battle Mode/Current Score (4525). Meanwhile, if we were both matched based upon the same value (ie. Highest Score), mine would be less than half of my opponent. Mine is 4400 whiule my opponents is 8920. This extreme case is one example of how the event rigging works and why players are regularly matched against very difficult opponents.