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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.
| Hero | Matches | Winrate | |
|---|---|---|---|
 | Io | 29 | 31.03% |
| Opponent | Rank | Rev-Rank | Winrate | Advantage | Matches | Won | Lost | |
|---|---|---|---|---|---|---|---|---|
 | Faceless Void | 100.00 | 25.00 | 75.00% | 43.97% | 4 | 3 | 1 |
 | Disruptor | 100.00 | 25.00 | 75.00% | 43.97% | 4 | 3 | 1 |
 | Magnus | 97.06 | 26.47 | 66.67% | 35.64% | 3 | 2 | 1 |
 | Winter Wyvern | 95.59 | 66.18 | 50.00% | 18.97% | 4 | 2 | 2 |
 | Skywrath Mage | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Timbersaw | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Keeper of the Light | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Death Prophet | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Invoker | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Weaver | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Lina | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Abaddon | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Brewmaster | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Ogre Magi | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Drow Ranger | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Undying | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Shadow Fiend | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Pudge | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Monkey King | 94.12 | 22.06 | 100.00% | 68.97% | 1 | 1 | 0 |
 | Tiny | 72.06 | 75.00 | 40.00% | 8.97% | 5 | 2 | 3 |
 | Phoenix | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Sand King | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Templar Assassin | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Rubick | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Clockwerk | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Leshrac | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Bloodseeker | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Bounty Hunter | 70.59 | 38.24 | 50.00% | 18.97% | 2 | 1 | 1 |
 | Broodmother | 58.82 | 73.53 | 33.33% | 2.30% | 3 | 1 | 2 |
 | Axe | 58.82 | 73.53 | 33.33% | 2.30% | 3 | 1 | 2 |
 | Lifestealer | 58.82 | 73.53 | 33.33% | 2.30% | 3 | 1 | 2 |
 | Dark Willow | 58.82 | 73.53 | 33.33% | 2.30% | 3 | 1 | 2 |
 | Slardar | 58.82 | 73.53 | 33.33% | 2.30% | 3 | 1 | 2 |
 | Ember Spirit | 51.47 | 88.24 | 25.00% | -6.03% | 4 | 1 | 3 |
 | Morphling | 51.47 | 88.24 | 25.00% | -6.03% | 4 | 1 | 3 |
 | Lich | 48.53 | 89.71 | 20.00% | -11.03% | 5 | 1 | 4 |
 | Ancient Apparition | 47.06 | 95.59 | 16.67% | -14.36% | 6 | 1 | 5 |
 | Centaur Warrunner | 47.06 | 95.59 | 16.67% | -14.36% | 6 | 1 | 5 |
 | Tusk | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Elder Titan | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Oracle | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Arc Warden | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Troll Warlord | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Pangolier | 44.12 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Void Spirit | 35.29 | 98.53 | 0.00% | -31.03% | 5 | 0 | 5 |
 | Snapfire | 33.82 | 100.00 | 0.00% | -31.03% | 7 | 0 | 7 |
 | Slark | 32.35 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Batrider | 32.35 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Nyx Assassin | 29.41 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Riki | 29.41 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Earthshaker | 26.47 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Juggernaut | 25.00 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Puck | 25.00 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Razor | 25.00 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Storm Spirit | 25.00 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Sven | 19.12 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Kunkka | 17.65 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Necrophos | 16.18 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Meepo | 14.71 | 92.65 | 0.00% | -31.03% | 3 | 0 | 3 |
 | Viper | 13.24 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Dragon Knight | 13.24 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Dark Seer | 10.29 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Omniknight | 8.82 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Enchantress | 7.35 | 92.65 | 0.00% | -31.03% | 3 | 0 | 3 |
 | Spectre | 5.88 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Silencer | 4.41 | 85.29 | 0.00% | -31.03% | 2 | 0 | 2 |
 | Shadow Demon | 2.94 | 64.71 | 0.00% | -31.03% | 1 | 0 | 1 |
 | Mars | 1.47 | 97.06 | 0.00% | -31.03% | 4 | 0 | 4 |