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): 5 - Median hero bans (mb): 7 - Matches: 69

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

Balance rank	Winrate	Pickrate	Contest Rate
43.3	50.0	43.1	23.6

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Sand King	Core Midlane	18	26.09%	100.00	23.30	8	87.50%	1.6	10	67.65%	1.4
Death Prophet	Core Offlane	42	60.87%	99.43	78.41	16	56.25%	3.2	26	66.67%	3.7
Necrophos	Core Offlane	29	42.03%	98.86	65.91	9	88.89%	1.8	20	40.91%	2.9
Pangolier	Core Midlane	23	33.33%	98.30	58.52	11	63.64%	2.2	12	70.00%	1.7
Ember Spirit	Core Midlane	40	57.97%	97.73	89.20	13	61.54%	2.6	27	51.61%	3.9
Troll Warlord	Core Safelane	6	8.70%	97.16	0.57	1	100.00%	0.2	5	100.00%	0.7
Keeper of the Light	Support Offlane	33	47.83%	96.59	78.98	12	50.00%	2.4	21	66.67%	3.0
Mirana	Support Offlane	21	30.43%	96.02	61.36	14	64.29%	2.8	7	62.50%	1.0
Io	Support Safelane	37	53.62%	95.45	88.07	12	66.67%	2.4	25	46.15%	3.6
Bane	Support Safelane	31	44.93%	94.89	82.39	19	57.89%	3.8	12	52.94%	1.7
Anti-Mage	Core Safelane	16	23.19%	94.32	43.18	3	66.67%	0.6	13	69.23%	1.9
Chaos Knight	Core Safelane	32	46.38%	93.75	85.80	14	57.14%	2.8	18	51.85%	2.6
Mars	Core Offlane	26	37.68%	93.18	75.00	13	61.54%	2.6	13	48.00%	1.9
Hoodwink	Support Offlane	22	31.88%	92.61	70.45	14	57.14%	2.8	8	62.50%	1.1
Razor	Core Safelane	32	46.38%	92.05	88.64	6	83.33%	1.2	26	40.00%	3.7
Enchantress	Support Offlane	44	63.77%	91.48	97.16	23	56.52%	4.6	21	30.43%	3.0
Shadow Demon	Support Safelane	6	8.70%	90.91	11.93	3	100.00%	0.6	3	62.50%	0.4
Sand King	Core Offlane	33	47.83%	90.34	93.18	15	40.00%	3.0	18	67.65%	2.6
Abaddon	Support Safelane	13	18.84%	89.77	46.02	8	75.00%	1.6	5	33.33%	0.7
Viper	Core Offlane	17	24.64%	89.20	57.39	3	33.33%	0.6	14	73.68%	2.0
Tiny	Core Safelane	25	36.23%	88.64	81.82	8	50.00%	1.6	17	55.56%	2.4
Bloodseeker	Core Safelane	19	27.54%	88.07	68.75	7	42.86%	1.4	12	73.33%	1.7
Sand King	Core Safelane	9	13.04%	87.50	21.59	4	75.00%	0.8	5	67.65%	0.7
Lina	Core Midlane	23	33.33%	86.93	76.70	7	28.57%	1.4	16	75.00%	2.3
Io	Support Offlane	18	26.09%	86.36	68.18	6	66.67%	1.2	12	46.15%	1.7
Dragon Knight	Core Midlane	19	27.54%	85.80	73.86	10	60.00%	2.0	9	41.18%	1.3
Bane	Support Offlane	13	18.84%	85.23	56.25	8	62.50%	1.6	5	52.94%	0.7
Skywrath Mage	Support Offlane	21	30.43%	84.66	82.95	14	57.14%	2.8	7	28.57%	1.0
Storm Spirit	Core Midlane	33	47.83%	84.09	96.02	8	75.00%	1.6	25	28.00%	3.6
Keeper of the Light	Core Midlane	5	7.25%	83.52	11.36	2	100.00%	0.4	3	66.67%	0.4
Pangolier	Core Offlane	10	14.49%	82.95	42.05	5	60.00%	1.0	5	70.00%	0.7
Naga Siren	Core Safelane	3	4.35%	82.39	4.55	2	100.00%	0.4	1	100.00%	0.1
Mars	Core Midlane	20	28.99%	81.82	84.66	10	50.00%	2.0	10	48.00%	1.4
Invoker	Core Midlane	48	69.57%	81.25	100.00	10	20.00%	2.0	38	47.37%	5.4
Underlord	Core Offlane	7	10.14%	80.68	19.32	3	100.00%	0.6	4	28.57%	0.6
Medusa	Core Safelane	32	46.38%	80.11	97.73	6	33.33%	1.2	26	46.15%	3.7
Gyrocopter	Core Safelane	17	24.64%	79.55	77.27	10	50.00%	2.0	7	50.00%	1.0
Death Prophet	Support Offlane	8	11.59%	78.98	26.70	3	66.67%	0.6	5	66.67%	0.7
Death Prophet	Core Midlane	8	11.59%	78.41	26.14	3	66.67%	0.6	5	66.67%	0.7
Keeper of the Light	Support Safelane	8	11.59%	77.84	27.27	3	66.67%	0.6	5	66.67%	0.7
Pugna	Support Safelane	19	27.54%	77.27	85.23	9	55.56%	1.8	10	33.33%	1.4
Beastmaster	Core Offlane	19	27.54%	76.70	83.52	6	33.33%	1.2	13	61.54%	1.9
Terrorblade	Core Safelane	13	18.84%	76.14	64.20	5	60.00%	1.0	8	45.45%	1.1
Phantom Lancer	Core Safelane	5	7.25%	75.57	15.34	2	100.00%	0.4	3	50.00%	0.4
Queen of Pain	Core Midlane	8	11.59%	75.00	30.68	3	33.33%	0.6	5	100.00%	0.7
Axe	Core Offlane	4	5.80%	74.43	12.50	2	100.00%	0.4	2	50.00%	0.3
Tiny	Core Offlane	12	17.39%	73.86	62.50	4	50.00%	0.8	8	55.56%	1.1
Clockwerk	Support Safelane	9	13.04%	73.30	53.41	6	50.00%	1.2	3	80.00%	0.4
Chaos Knight	Core Offlane	16	23.19%	72.73	80.68	7	42.86%	1.4	9	51.85%	1.3
Faceless Void	Core Safelane	17	24.64%	72.16	77.84	3	33.33%	0.6	14	52.63%	2.0
Timbersaw	Core Offlane	18	26.09%	71.59	87.50	5	60.00%	1.0	13	33.33%	1.9
Leshrac	Core Midlane	9	13.04%	71.02	44.89	3	66.67%	0.6	6	50.00%	0.9
Enigma	Core Offlane	3	4.35%	70.45	9.09	2	100.00%	0.4	1	33.33%	0.1
Undying	Support Safelane	5	7.25%	69.89	21.02	4	75.00%	0.8	1	0.00%	0.1
Timbersaw	Core Safelane	7	10.14%	69.32	28.41	2	100.00%	0.4	5	33.33%	0.7
Grimstroke	Support Offlane	11	15.94%	68.75	69.32	7	57.14%	1.4	4	20.00%	0.6
Rubick	Support Offlane	7	10.14%	68.18	29.55	2	50.00%	0.4	5	71.43%	0.7
Batrider	Core Midlane	17	24.64%	67.61	89.77	4	25.00%	0.8	13	52.00%	1.9
Ancient Apparition	Core Offlane	7	10.14%	67.05	25.00	1	100.00%	0.2	6	50.00%	0.9
Monkey King	Support Offlane	19	27.54%	66.48	94.89	7	42.86%	1.4	12	34.78%	1.7
Faceless Void	Core Offlane	6	8.70%	65.91	19.89	1	100.00%	0.2	5	52.63%	0.7
Ursa	Core Safelane	6	8.70%	65.34	24.43	2	100.00%	0.4	4	25.00%	0.6
Huskar	Core Midlane	12	17.39%	64.77	71.59	4	50.00%	0.8	8	41.18%	1.1
Weaver	Support Offlane	14	20.29%	64.20	90.91	10	40.00%	2.0	4	42.86%	0.6
Templar Assassin	Core Midlane	14	20.29%	63.64	84.09	5	40.00%	1.0	9	45.00%	1.3
Templar Assassin	Core Safelane	17	24.64%	63.07	93.75	6	33.33%	1.2	11	45.00%	1.6
Visage	Core Offlane	3	4.35%	62.50	13.64	2	100.00%	0.4	1	0.00%	0.1
Jakiro	Core Offlane	3	4.35%	62.50	13.64	2	100.00%	0.4	1	0.00%	0.1
Rubick	Support Safelane	3	4.35%	61.36	8.52	1	100.00%	0.2	2	71.43%	0.3
Keeper of the Light	Core Offlane	11	15.94%	60.80	71.02	4	25.00%	0.8	7	66.67%	1.0
Chen	Support Safelane	3	4.35%	60.23	10.23	1	100.00%	0.2	2	66.67%	0.3
Lone Druid	Core Safelane	3	4.35%	59.66	9.66	1	100.00%	0.2	2	66.67%	0.3
Void Spirit	Core Midlane	17	24.64%	59.09	95.45	8	37.50%	1.6	9	33.33%	1.3
Phantom Assassin	Core Offlane	8	11.59%	58.52	53.98	3	66.67%	0.6	5	30.77%	0.7
Batrider	Core Safelane	8	11.59%	57.95	49.43	2	50.00%	0.4	6	52.00%	0.9
Batrider	Core Offlane	8	11.59%	57.39	50.00	2	50.00%	0.4	6	52.00%	0.9
Tidehunter	Core Safelane	5	7.25%	56.82	25.57	3	66.67%	0.6	2	37.50%	0.3
Enigma	Support Safelane	5	7.25%	56.25	28.98	3	66.67%	0.6	2	33.33%	0.3
Monkey King	Core Safelane	14	20.29%	55.68	92.05	5	40.00%	1.0	9	34.78%	1.3
Venomancer	Core Safelane	2	2.90%	55.11	5.11	1	100.00%	0.2	1	80.00%	0.1
Spirit Breaker	Support Offlane	7	10.14%	54.55	50.57	3	66.67%	0.6	4	25.00%	0.6
Tiny	Core Midlane	3	4.35%	53.98	14.20	1	100.00%	0.2	2	55.56%	0.3
Crystal Maiden	Support Offlane	3	4.35%	53.41	16.48	3	66.67%	0.6	0	0.00%	0.0
Wraith King	Core Safelane	11	15.94%	52.84	86.36	7	42.86%	1.4	4	20.00%	0.6
Pangolier	Support Offlane	2	2.90%	52.27	5.68	1	100.00%	0.2	1	70.00%	0.1
Death Prophet	Support Safelane	5	7.25%	51.70	27.84	2	50.00%	0.4	3	66.67%	0.4
Kunkka	Core Midlane	17	24.64%	51.14	96.59	3	33.33%	0.6	14	33.33%	2.0
Centaur Warrunner	Core Offlane	3	4.35%	50.57	14.77	1	100.00%	0.2	2	50.00%	0.3
Viper	Core Safelane	6	8.70%	50.00	36.93	1	0.00%	0.2	5	73.68%	0.7
Snapfire	Support Offlane	5	7.25%	49.43	43.75	4	50.00%	0.8	1	50.00%	0.1
Kunkka	Core Safelane	6	8.70%	48.86	37.50	1	100.00%	0.2	5	33.33%	0.7
Dragon Knight	Core Offlane	16	23.19%	48.30	98.30	8	25.00%	1.6	8	41.18%	1.1
Shadow Demon	Support Offlane	9	13.04%	47.73	72.73	4	25.00%	0.8	5	62.50%	0.7
Puck	Core Midlane	12	17.39%	47.16	86.93	2	50.00%	0.4	10	30.00%	1.4
Legion Commander	Core Safelane	2	2.90%	46.59	7.39	1	100.00%	0.2	1	50.00%	0.1
Tusk	Core Offlane	2	2.90%	46.02	6.82	1	100.00%	0.2	1	50.00%	0.1
Legion Commander	Core Offlane	2	2.90%	46.02	6.82	1	100.00%	0.2	1	50.00%	0.1
Mars	Support Offlane	2	2.90%	44.89	7.95	1	100.00%	0.2	1	48.00%	0.1
Pangolier	Support Safelane	4	5.80%	44.32	22.16	2	50.00%	0.4	2	70.00%	0.3
Lifestealer	Core Safelane	4	5.80%	43.75	17.61	1	0.00%	0.2	3	100.00%	0.4
Huskar	Core Safelane	12	17.39%	43.18	92.61	4	25.00%	0.8	8	41.18%	1.1
Windranger	Core Midlane	4	5.80%	42.61	39.77	4	50.00%	0.8	0	0.00%	0.0
Bristleback	Core Safelane	6	8.70%	42.05	55.11	3	66.67%	0.6	3	0.00%	0.4
Nature's Prophet	Core Safelane	3	4.35%	41.48	15.91	1	100.00%	0.2	2	33.33%	0.3
Tidehunter	Core Midlane	2	2.90%	40.91	10.80	1	100.00%	0.2	1	37.50%	0.1
Meepo	Core Safelane	1	1.45%	40.34	3.98	1	100.00%	0.2	0	0.00%	0.0
Ogre Magi	Support Offlane	1	1.45%	39.77	3.41	1	100.00%	0.2	0	0.00%	0.0
Weaver	Core Offlane	1	1.45%	39.20	2.84	1	100.00%	0.2	0	42.86%	0.0
Vengeful Spirit	Core Safelane	1	1.45%	38.64	2.27	1	100.00%	0.2	0	0.00%	0.0
Dark Willow	Support Safelane	1	1.45%	38.07	1.70	1	100.00%	0.2	0	100.00%	0.0
Weaver	Core Safelane	1	1.45%	37.50	1.14	1	100.00%	0.2	0	42.86%	0.0
Morphling	Core Safelane	5	7.25%	36.93	31.25	1	0.00%	0.2	4	75.00%	0.6
Timbersaw	Core Midlane	7	10.14%	36.36	60.80	2	50.00%	0.4	5	33.33%	0.7
Dark Seer	Core Midlane	4	5.80%	35.80	30.11	2	50.00%	0.4	2	50.00%	0.3
Earth Spirit	Support Offlane	5	7.25%	35.23	59.66	5	40.00%	1.0	0	0.00%	0.0
Lich	Support Safelane	5	7.25%	34.66	60.23	5	40.00%	1.0	0	0.00%	0.0
Clockwerk	Support Offlane	6	8.70%	34.09	65.34	4	25.00%	0.8	2	80.00%	0.3
Luna	Core Offlane	3	4.35%	33.52	17.05	1	100.00%	0.2	2	12.50%	0.3
Phantom Assassin	Core Safelane	13	18.84%	32.95	99.43	5	20.00%	1.0	8	30.77%	1.1
Shadow Shaman	Support Offlane	4	5.80%	32.39	44.32	3	33.33%	0.6	1	100.00%	0.1
Underlord	Core Safelane	5	7.25%	31.82	48.86	2	50.00%	0.4	3	28.57%	0.4
Pugna	Support Offlane	4	5.80%	31.25	40.34	2	50.00%	0.4	2	33.33%	0.3
Gyrocopter	Core Offlane	3	4.35%	30.68	22.73	2	50.00%	0.4	1	50.00%	0.1
Pugna	Core Midlane	9	13.04%	30.11	91.48	4	25.00%	0.8	5	33.33%	0.7
Chen	Support Offlane	8	11.59%	29.55	81.25	3	0.00%	0.6	5	66.67%	0.7
Juggernaut	Core Safelane	7	10.14%	28.98	76.14	3	0.00%	0.6	4	75.00%	0.6
Slardar	Core Offlane	3	4.35%	28.41	20.45	1	0.00%	0.2	2	100.00%	0.3
Tidehunter	Core Offlane	11	15.94%	27.84	98.86	6	16.67%	1.2	5	37.50%	0.7
Lone Druid	Core Midlane	6	8.70%	27.27	64.77	2	0.00%	0.4	4	66.67%	0.6
Venomancer	Core Offlane	8	11.59%	26.70	90.34	4	0.00%	0.8	4	80.00%	0.6
Snapfire	Core Midlane	4	5.80%	26.14	54.55	3	33.33%	0.6	1	50.00%	0.1
Snapfire	Support Safelane	2	2.90%	25.57	18.18	2	50.00%	0.4	0	50.00%	0.0
Nyx Assassin	Support Offlane	2	2.90%	25.00	18.75	2	50.00%	0.4	0	0.00%	0.0
Weaver	Support Safelane	6	8.70%	24.43	75.57	4	25.00%	0.8	2	42.86%	0.3
Luna	Core Safelane	9	13.04%	23.86	94.32	3	33.33%	0.6	6	12.50%	0.9
Bloodseeker	Core Offlane	5	7.25%	23.30	61.93	2	0.00%	0.4	3	73.33%	0.4
Lich	Support Offlane	3	4.35%	22.73	47.16	3	33.33%	0.6	0	0.00%	0.0
Ember Spirit	Core Safelane	6	8.70%	22.16	74.43	2	0.00%	0.4	4	51.61%	0.6
Visage	Core Midlane	4	5.80%	21.59	63.07	3	33.33%	0.6	1	0.00%	0.1
Razor	Core Offlane	5	7.25%	21.02	63.64	1	0.00%	0.2	4	40.00%	0.6
Omniknight	Support Safelane	3	4.35%	20.45	39.20	1	0.00%	0.2	2	66.67%	0.3
Omniknight	Support Offlane	3	4.35%	19.89	38.64	1	0.00%	0.2	2	66.67%	0.3
Lycan	Core Offlane	2	2.90%	19.32	23.86	1	0.00%	0.2	1	100.00%	0.1
Io	Core Midlane	3	4.35%	18.75	46.59	1	0.00%	0.2	2	46.15%	0.3
Terrorblade	Support Offlane	3	4.35%	18.18	47.73	1	0.00%	0.2	2	45.45%	0.3
Terrorblade	Core Offlane	3	4.35%	17.61	48.30	1	0.00%	0.2	2	45.45%	0.3
Shadow Shaman	Support Safelane	3	4.35%	17.05	59.09	2	0.00%	0.4	1	100.00%	0.1
Huskar	Support Offlane	3	4.35%	16.48	52.27	1	0.00%	0.2	2	41.18%	0.3
Necrophos	Core Safelane	3	4.35%	15.91	52.84	1	0.00%	0.2	2	40.91%	0.3
Dark Willow	Support Offlane	4	5.80%	15.34	79.55	3	0.00%	0.6	1	100.00%	0.1
Sand King	Support Offlane	2	2.90%	14.77	36.36	1	0.00%	0.2	1	67.65%	0.1
Monkey King	Core Midlane	3	4.35%	14.20	55.68	1	0.00%	0.2	2	34.78%	0.3
Mirana	Support Safelane	2	2.90%	13.64	38.07	1	0.00%	0.2	1	62.50%	0.1
Nature's Prophet	Core Offlane	3	4.35%	13.07	56.82	1	0.00%	0.2	2	33.33%	0.3
Phantom Lancer	Core Offlane	2	2.90%	12.50	40.91	1	0.00%	0.2	1	50.00%	0.1
Tusk	Support Offlane	2	2.90%	11.93	41.48	1	0.00%	0.2	1	50.00%	0.1
Enchantress	Support Safelane	4	5.80%	11.36	80.11	2	0.00%	0.4	2	30.43%	0.3
Mars	Core Safelane	2	2.90%	10.80	42.61	1	0.00%	0.2	1	48.00%	0.1
Tusk	Support Safelane	3	4.35%	10.23	69.89	2	0.00%	0.4	1	50.00%	0.1
Pugna	Core Offlane	2	2.90%	9.66	45.45	1	0.00%	0.2	1	33.33%	0.1
Abaddon	Support Offlane	3	4.35%	9.09	73.30	2	0.00%	0.4	1	33.33%	0.1
Wraith King	Core Offlane	2	2.90%	8.52	51.70	1	0.00%	0.2	1	20.00%	0.1
Grimstroke	Support Safelane	2	2.90%	7.95	51.14	1	0.00%	0.2	1	20.00%	0.1
Brewmaster	Core Offlane	2	2.90%	7.39	67.61	2	0.00%	0.4	0	0.00%	0.0
Skywrath Mage	Support Safelane	1	1.45%	6.82	31.82	1	0.00%	0.2	0	28.57%	0.0
Oracle	Support Offlane	3	4.35%	6.25	72.16	1	0.00%	0.2	2	0.00%	0.3
Visage	Core Safelane	1	1.45%	5.68	32.39	1	0.00%	0.2	0	0.00%	0.0
Vengeful Spirit	Support Safelane	1	1.45%	5.11	32.95	1	0.00%	0.2	0	0.00%	0.0
Jakiro	Support Offlane	1	1.45%	4.55	33.52	1	0.00%	0.2	0	0.00%	0.0
Winter Wyvern	Core Offlane	1	1.45%	3.98	34.09	1	0.00%	0.2	0	0.00%	0.0
Winter Wyvern	Support Offlane	2	2.90%	3.41	67.05	2	0.00%	0.4	0	0.00%	0.0
Shadow Fiend	Core Safelane	1	1.45%	2.84	34.66	1	0.00%	0.2	0	0.00%	0.0
Vengeful Spirit	Support Offlane	1	1.45%	2.27	35.80	1	0.00%	0.2	0	0.00%	0.0
Elder Titan	Support Offlane	1	1.45%	2.27	35.80	1	0.00%	0.2	0	0.00%	0.0
Techies	Support Offlane	2	2.90%	1.14	67.05	2	0.00%	0.4	0	0.00%	0.0
Dazzle	Support Safelane	2	2.90%	0.57	58.52	1	0.00%	0.2	1	0.00%	0.1