Overview | Ranking with roles

Explain this to me

This table contains stats for heroes' picks and bans.
Rank is used to sort heroes by winrate, taking number of their picks and bans into account. Higher rank means the hero is stronger. Rev-Rank (Reverse Rank) is used to show the least effective heroes with the most number of matches.
Number of bans is calculated approximately based on ratio of matches on the position to all matches of the hero.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 2 - Median hero bans (mb): 2 - Matches: 11

Remove low picks (0.9mp) Remove low bans (0.9mb)

Balance rank	Winrate	Pickrate	Contest Rate
22.3	22.1	22.7	22.2

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Omniknight	Core Offlane	4	36.36%	100.00	19.12	2	100.00%	1.0	2	100.00%	1.0
Enchantress	Core Offlane	8	72.73%	98.53	38.24	3	100.00%	1.5	5	57.14%	2.5
Lina	Core Midlane	3	27.27%	97.06	1.47	2	100.00%	1.0	1	100.00%	0.5
Rubick	Support	5	45.45%	95.59	30.88	5	80.00%	2.5	0	0.00%	0.0
Centaur Warrunner	Core Offlane	3	27.27%	94.12	5.88	1	100.00%	0.5	2	100.00%	1.0
Faceless Void	Core Safelane	5	45.45%	92.65	33.82	3	100.00%	1.5	2	0.00%	1.0
Earth Spirit	Support	2	18.18%	91.18	8.82	2	100.00%	1.0	0	0.00%	0.0
Outworld Destroyer	Core Midlane	4	36.36%	89.71	23.53	1	100.00%	0.5	3	66.67%	1.5
Elder Titan	Support	11	100.00%	88.24	91.18	6	50.00%	3.0	5	40.00%	2.5
Sand King	Support	2	18.18%	86.76	11.76	1	100.00%	0.5	1	100.00%	0.5
Ancient Apparition	Support	4	36.36%	85.29	36.76	2	50.00%	1.0	2	100.00%	1.0
Tidehunter	Core Offlane	4	36.36%	83.82	35.29	2	50.00%	1.0	2	100.00%	1.0
Enchantress	Core Safelane	3	27.27%	82.35	22.06	1	100.00%	0.5	2	57.14%	1.0
Kunkka	Core Midlane	9	81.82%	80.88	89.71	3	33.33%	1.5	6	50.00%	3.0
Tiny	Core Midlane	5	45.45%	79.41	70.59	2	100.00%	1.0	3	0.00%	1.5
Spectre	Core Safelane	3	27.27%	77.94	25.00	1	100.00%	0.5	2	50.00%	1.0
Magnus	Core Safelane	4	36.36%	76.47	39.71	1	100.00%	0.5	3	40.00%	1.5
Crystal Maiden	Support	3	27.27%	75.00	32.35	3	66.67%	1.5	0	0.00%	0.0
Alchemist	Core Midlane	10	90.91%	73.53	100.00	1	0.00%	0.5	9	44.44%	4.5
Oracle	Support	4	36.36%	72.06	52.94	3	66.67%	1.5	1	0.00%	0.5
Leshrac	Core Offlane	2	18.18%	70.59	20.59	1	100.00%	0.5	1	50.00%	0.5
Visage	Core Safelane	1	9.09%	69.12	4.41	1	100.00%	0.5	0	0.00%	0.0
Windranger	Support	1	9.09%	67.65	14.71	1	100.00%	0.5	0	0.00%	0.0
Dragon Knight	Core Midlane	1	9.09%	66.18	10.29	1	100.00%	0.5	0	0.00%	0.0
Terrorblade	Core Offlane	1	9.09%	64.71	16.18	1	100.00%	0.5	0	0.00%	0.0
Jakiro	Support	1	9.09%	63.24	17.65	1	100.00%	0.5	0	0.00%	0.0
Monkey King	Core Midlane	1	9.09%	61.76	2.94	1	100.00%	0.5	0	0.00%	0.0
Meepo	Core Midlane	1	9.09%	61.76	13.24	1	100.00%	0.5	0	0.00%	0.0
Wraith King	Core Offlane	1	9.09%	58.82	7.35	1	100.00%	0.5	0	0.00%	0.0
Mirana	Support	7	63.64%	57.35	92.65	3	0.00%	1.5	4	80.00%	2.0
Ogre Magi	Core Offlane	5	45.45%	55.88	76.47	3	33.33%	1.5	2	50.00%	1.0
Slark	Core Midlane	2	18.18%	54.41	29.41	1	100.00%	0.5	1	0.00%	0.5
Tiny	Support	2	18.18%	52.94	27.94	1	100.00%	0.5	1	0.00%	0.5
Earthshaker	Support	2	18.18%	52.94	27.94	1	100.00%	0.5	1	0.00%	0.5
Anti-Mage	Core Offlane	4	36.36%	50.00	75.00	1	0.00%	0.5	3	66.67%	1.5
Terrorblade	Core Safelane	2	18.18%	48.53	44.12	2	50.00%	1.0	0	0.00%	0.0
Witch Doctor	Support	2	18.18%	47.06	47.06	2	50.00%	1.0	0	0.00%	0.0
Lion	Support	2	18.18%	47.06	47.06	2	50.00%	1.0	0	0.00%	0.0
Juggernaut	Core Safelane	2	18.18%	44.12	44.12	2	50.00%	1.0	0	0.00%	0.0
Nyx Assassin	Support	2	18.18%	42.65	41.18	2	50.00%	1.0	0	0.00%	0.0
Invoker	Core Midlane	3	27.27%	41.18	72.06	2	50.00%	1.0	1	0.00%	0.5
Lifestealer	Core Safelane	6	54.55%	39.71	97.06	2	50.00%	1.0	4	0.00%	2.0
Wraith King	Core Safelane	5	45.45%	38.24	95.59	4	25.00%	2.0	1	0.00%	0.5
Leshrac	Core Midlane	5	45.45%	36.76	94.12	2	0.00%	1.0	3	50.00%	1.5
Magnus	Core Offlane	4	36.36%	35.29	85.29	1	0.00%	0.5	3	40.00%	1.5
Sand King	Core Offlane	2	18.18%	33.82	50.00	1	0.00%	0.5	1	100.00%	0.5
Omniknight	Core Safelane	2	18.18%	32.35	51.47	1	0.00%	0.5	1	100.00%	0.5
Warlock	Support	2	18.18%	30.88	48.53	1	0.00%	0.5	1	100.00%	0.5
Gyrocopter	Core Midlane	5	45.45%	29.41	98.53	1	0.00%	0.5	4	25.00%	2.0
Mirana	Core Midlane	2	18.18%	27.94	54.41	1	0.00%	0.5	1	80.00%	0.5
Ogre Magi	Support	2	18.18%	26.47	73.53	1	0.00%	0.5	1	50.00%	0.5
Storm Spirit	Core Midlane	1	9.09%	25.00	64.71	1	0.00%	0.5	0	0.00%	0.0
Abaddon	Core Offlane	1	9.09%	23.53	66.18	1	0.00%	0.5	0	0.00%	0.0
Axe	Core Safelane	1	9.09%	22.06	67.65	1	0.00%	0.5	0	0.00%	0.0
Shadow Shaman	Core Offlane	1	9.09%	20.59	69.12	1	0.00%	0.5	0	0.00%	0.0
Shadow Shaman	Support	2	18.18%	19.12	86.76	2	0.00%	1.0	0	0.00%	0.0
Invoker	Support	1	9.09%	17.65	57.35	1	0.00%	0.5	0	0.00%	0.0
Treant Protector	Support	1	9.09%	17.65	63.24	1	0.00%	0.5	0	0.00%	0.0
Brewmaster	Core Offlane	1	9.09%	14.71	61.76	1	0.00%	0.5	0	0.00%	0.0
Dark Willow	Support	1	9.09%	13.24	60.29	1	0.00%	0.5	0	0.00%	0.0
Necrophos	Core Midlane	1	9.09%	11.76	58.82	1	0.00%	0.5	0	0.00%	0.0
Sven	Core Safelane	2	18.18%	10.29	83.82	1	0.00%	0.5	1	0.00%	0.5
Tiny	Core Safelane	2	18.18%	10.29	83.82	1	0.00%	0.5	1	0.00%	0.5
Phantom Assassin	Core Safelane	2	18.18%	7.35	88.24	2	0.00%	1.0	0	0.00%	0.0
Death Prophet	Core Midlane	2	18.18%	5.88	80.88	1	0.00%	0.5	1	0.00%	0.5
Sven	Core Offlane	2	18.18%	4.41	79.41	1	0.00%	0.5	1	0.00%	0.5
Earthshaker	Core Offlane	2	18.18%	4.41	79.41	1	0.00%	0.5	1	0.00%	0.5
Grimstroke	Support	1	9.09%	1.47	57.35	1	0.00%	0.5	0	0.00%	0.0