Dota API issues are mostly resolved (but some matches in events reports might be missing)
Facets are coming soon, Builds section now has up-to-date stats builds.
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TI8 Main Event - Day 2

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Total observer wards destroyed: 104

Explain this to me
The page shows a hero's winrates against certain enemies, as well as winrate advantage (difference in winrate compared to overall value). Higher rank and winrate mean opponent is easier for the hero, higher R-Rank means opponent is picked often and is less effective against the hero.
HeroMatchesWinrate
winter_wyvernWinter Wyvern366.67%
OpponentRankRev-RankWinrateAdvantageMatchesWonLost
earthshakerEarthshaker100.0058.33100.00%33.33%110
storm_spiritStorm Spirit100.0058.33100.00%33.33%110
dragon_knightDragon Knight100.0058.33100.00%33.33%110
furionNature's Prophet100.0058.33100.00%33.33%110
enchantressEnchantress100.0058.33100.00%33.33%110
jakiroJakiro100.0058.33100.00%33.33%110
earth_spiritEarth Spirit100.0058.33100.00%33.33%110
weaverWeaver41.6783.3350.00%-16.67%211
ursaUrsa41.6783.3350.00%-16.67%211
phoenixPhoenix41.6783.3350.00%-16.67%211
vengefulspiritVengeful Spirit16.67100.000.00%-66.67%101
alchemistAlchemist16.67100.000.00%-66.67%101