So, rSPOT*rFRAG appear to measure something important for winning. However, the WN8 authors noted the following: People unfamiliar with the formula often accuse Unicums of being “redline snipers”.Cap points were not found to be statistically correlated with winning.WN8 is calculated at the tank level, and WN8 is calculated at the account level (as an aggregate of your performance in all the tanks you’ve played).These stats are available at the per-tank level in the WoT API and in particular the first four correlate with winning, based the massive data regression that was performed by the WN team The formula includes damage, frags (kills), spots, defense points, and win rate.The final formula is: WN8 = 980*rDAMAGEc + 210*rDAMAGEc*rFRAGc + 155*rFRAGc*rSPOTc + 75*rDEFc*rFRAGc + 145*MIN(1.8,rWINc) So, Eureqa assigns weights to each stat according to how important it is in determining wins. Using a subset of the database (115k players), we used their stats as input to a program called Eureqa which uses genetic algorithms to find the best “formula” to explain winrate using the rest of the stats. Brief explanation of the formula and how it was devised (Eureqa) ![]() Then your actual total stats are compared to the expected stats ( rSTATS), which are then normalized and adjusted to a baseline (rSTATSc), and these numbers are then input into the formula shown below. rSTATSc are capped to prevent, for example, farming spots on tanks with low expected value of spots, like arty. The number of games you have played on each tank allows us to estimate what your “expected” total stats should be for your entire account. You can find the current values and links to the previous daily values here: WN8 Expected Values ![]() This table is available here: Ĥ: The XVM Mod community took over the daily calculation of “expected” values for each tank, starting back on 8. Per-tank stats explanationīriefly, what we have done is used vBAddict database (more than 1 million tanks played by about 20000 players) to calculate balanced and comparable “expected” values for each tank. This was not true for any rating before WN8.Ĥ: The important advantage noted above is key IMO – ratings that reflect relative contribution to winning are helpful for the sake of comparing how much players tend to contribute to winning. Debatably the most important one after improved accuracy in measurement is that we can now say that a 2400 WN8 player on average contributes twice as much for his team to win than a 1200 WN8 player. WN7 values ranged from 400-2800, and we turned this scale into a ratio scale, which brings about numerous advantages. However, you are expected to do VERY well in low tiers to gain WN8 points as opposed to playing high tiers. Low tier tanks are measured fairly against high tiers, whereas in WN7, you could raise your score artificially by playing a mix of low and high tiers, and were penalized if you only played low tiers. Despite not being able to use spotting damage, WN8 expects less damage of light tanks, while WN7 expected the same as other tanks of the same tier.
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