If the grand-master started without his queen or rooks, I would have more than a fighting chance. Tanks and their upgrading system are far too complex to even begin to use performance averages to find net skill. Worse still, some people play in platoons which organize some of the otherwise mostly random game-play further padding stats. Making the person who upgrades the best on average tank to its maximum potential, have extremely padded stats.

Even worse, random matches have teams composed of different tanks. The aforementioned amplification makes matches where you are playing against the same tier horribly unbalanced even if both teams have the same tanks. Certain trade offs work better on specific maps, some are better on a majority. This is amplified by stock vs fully upgraded vs crew stats + equipment + perks + gold ammo + the new directives. Some tanks are better than other tanks in the same class are not identical, this leads them to having trade offs. I can beat the snot out of my friends at chess all day, but going 100000000000 in 0 against poor players will not make me beat a grand-master. Skill and performance are two completely different things. Neither analyzes skill, they look at performance. 'which one is more efficient to know how good of a player you are?' This question is inherently opinion based. To conclude, what I want to know is how WN7 and WN8 (respectively) is calculated and which one is more efficient to know how good of a player you are? But in the WoT and WoT console communities they tend to use WN8 more. Which one of the measures is the most accurate for knowing how good of a player you are? I know that WN8 is more modern but in the WoTB community, WN7 is more widely used than the WN8. To see some of these numbers in play, here are the links to the main stat pages that players use WoT(WN8 only) | WoT | WoTB (The WoT ones are my 'noob' account for comparison, WoTB is the stats of the top clan)

WN7 and WN8 have both different ways of calculating and percentages of which one of these stats will affect your final score. I know that your winrate, average damage, average kills, platoon rate, average spots, KDR, DR, and many more are put into consideration. I know that for all of these games your WN7 / WN8 is calculated the same way but I do not know how they are calculated? If you play WoT, WoTB, WoT Console and other Wargaming games, you'll know your 'unofficial' stats are normally measured in WN7 or WN8 (and sometimes STAR1 and efficiency).

World of tanks blitz vs world of stell