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Road to TI12 Group Stage - Day 2

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Second Pick Winrate: 59.3750

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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
shadow_demonShadow Demon825.00%
OpponentRankRev-RankWinrateAdvantageMatchesWonLostExpected matchesDeviationPercentage
muertaMuerta100.006.67100.00%75.00%110100.00%
clinkzClinkz96.6720.00100.00%75.00%11001100.00%
centaurCentaur Warrunner93.336.67100.00%75.00%110100.00%
lone_druidLone Druid90.0010.00100.00%75.00%11001100.00%
invokerInvoker86.6716.67100.00%75.00%110100.00%
spirit_breakerSpirit Breaker86.6716.67100.00%75.00%110100.00%
treantTreant Protector80.0033.3350.00%25.00%2111150.00%
dark_willowDark Willow80.0033.3350.00%25.00%2111150.00%
earth_spiritEarth Spirit80.0033.3350.00%25.00%2111150.00%
ancient_apparitionAncient Apparition80.0033.3350.00%25.00%2111150.00%
templar_assassinTemplar Assassin66.6736.670.00%-25.00%101100.00%
primal_beastPrimal Beast63.3396.670.00%-25.00%2021150.00%
phoenixPhoenix63.3396.670.00%-25.00%2021150.00%
elder_titanElder Titan56.6740.000.00%-25.00%10101100.00%
skywrath_mageSkywrath Mage53.3343.330.00%-25.00%101100.00%
bristlebackBristleback50.00100.000.00%-25.00%202200.00%
tinyTiny46.6746.670.00%-25.00%10101100.00%
rubickRubick43.3380.000.00%-25.00%101100.00%
chaos_knightChaos Knight40.0096.670.00%-25.00%2021150.00%
rattletrapClockwerk36.6753.330.00%-25.00%10101100.00%
kunkkaKunkka33.3356.670.00%-25.00%101100.00%
necrolyteNecrophos30.0066.670.00%-25.00%10101100.00%
storm_spiritStorm Spirit30.0066.670.00%-25.00%10101100.00%
spectreSpectre23.3396.670.00%-25.00%2021150.00%
bounty_hunterBounty Hunter20.0066.670.00%-25.00%10101100.00%
enchantressEnchantress16.6770.000.00%-25.00%101100.00%
pugnaPugna13.3396.670.00%-25.00%2021150.00%
dark_seerDark Seer10.0076.670.00%-25.00%10101100.00%
life_stealerLifestealer10.0076.670.00%-25.00%10101100.00%
earthshakerEarthshaker3.3350.000.00%-25.00%101100.00%