Kogo jak i dlaczego losuje
http://wiki.worldoftanks.com/images/a/a ... _Chart.png
Once enough candidates for a certain battle tier are found, the matchmaker tries to form two teams from them. For this purpose each vehicle is assigned a certain weight, and the matchmaker tries to keep the weight of both teams as equal as possible. Weighting is performed by vehicle tier and vehicle type, some vehicles are individually weighted, and for some vehicles there are special restrictions.
Below are the rules for game version 0.8.0:
Weight by Vehicle Tier is applied as follows:
Tier 10: 100
Tier 9: 60
Tier 8: 40
Tier 7: 27
Tier 6: 18
Tier 5: 12
Tier 4: 8
Tier 3: 5
Tier 2: 3
Tier 1: 2
Weight by Vehicle Type is generally applied as follows:
All heavy tanks receive 20% extra weight.
All SPGs receive 25% extra weight.
Individual Weights:
Tier 9 and 10 medium tanks receive 20% extra weight.
Tier 8, 9 and 10 tank destroyers receive 20% extra weight.
T-50-2 and M24 Chaffee are weighted like tier 6 tanks.
The PzKpfw 38H735 (f) "Hotchkiss" is a tier 2 tank with 233% extra weight, with 7 points it is weighted close to a tier 4 tank, but it is in the same battle tier as other tier 2 light tanks.
The Comet is weighed like a heavy tank.
Special Restrictions
The number of the same vehicle on opposing teams cannot differ by more than 1, except when the vehicles are in a platoon.
Previously, the number of SPGs in opposing teams could never differ by more than 1. While this is still the goal for the match-maker, since update 0.7.4 it is not a strict restriction. Now, rarely, SPG numbers can differ by more, including one team having none while the other team has one or more.
The total weight of the SPGs on opposing teams cannot differ by more than 25%.
The total weight of the top tier vehicles on opposing teams cannot differ by more than 25%.
It seems in general the weight of opposing teams does not differ by more than 10%, but it is unclear if there is a fixed limit.
Whether vehicles are stock or fully researched, how they are equipped, nor crew skill is taken into account by the match-maker.
Vehicle Tier
Vehicle tier is NOT taken into consideration when balancing teams. This is a common misconception among players. For example, under the current rules a tier 8 medium can be matched against a tier 7 heavy tank. The tier 8 medium has a matchmaking weight of 40 and the tier 7 heavy tank has a matchmaking weight of 39.15, i.e. nearly the same. The only relevance of vehicle tier is to determine the battle tier.
Platoons
IMPORTANT: If you are in a platoon, the entire platoon is placed into battles according to the platoon member in the vehicle with the highest battle tier. This can produce unwanted results in particular for new players at the lower tiers. For example, a tier 3 SPG can enter battles up to tier 6, whereas a tier 3 medium tank on its own can only join battles up to tier 5. Similarly, a tier 5 SPG will enter battles up to tier 9, whereas a tier 5 heavy tank will only enter battles up to tier 7. If these platoon together, the SPG will pull the other tank up into its battle tier, where the other tank will usually be hopelessly outclassed. Please take this into account when forming platoons.
A special case of this is when you see a top tier tank platooned with one or two tier 1 tank. This is sometimes done on purpose. If you look above, a tier 10 heavy tank weighs 145 points, whereas a tier 1 tank weighs only 2. Thus the platoon's team a priori has a massive point deficit, which the match-maker will balance out by either dragging more lower tier tanks into the enemy team or by dragging more high tier tanks into the platoon's team. The tactic is frowned upon but permissible. It has become rare these days, likely because the success chances are mediocre. With two tier 1 tanks the team is missing 13.3% of its team that could play a useful role during the battle, whereas the only useful contribution the tier 1 tanks can make is sneak into the enemy cap.
Apart from these considerations, platoons play no role in matchmaking. The matchmaker does not balance the number of platoons nor do platooned tanks receive special weight anymore.