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): 7 - Median hero bans (mb): 11 - Matches: 83

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

Balance rank	Winrate	Pickrate	Contest Rate
44.7	71.8	18.0	16.9

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Brewmaster	Core Offlane	31	37.35%	100.00	27.81	15	80.00%	2.1	16	83.33%	1.5
Anti-Mage	Core Safelane	35	42.17%	99.34	60.93	5	80.00%	0.7	30	60.00%	2.7
Medusa	Core Safelane	68	81.93%	98.68	89.40	17	64.71%	2.4	51	47.06%	4.6
Pugna	Support Safelane	22	26.51%	98.01	49.01	10	80.00%	1.4	12	52.17%	1.1
Abaddon	Support Safelane	20	24.10%	97.35	42.38	8	75.00%	1.1	12	65.38%	1.1
Storm Spirit	Core Midlane	57	68.67%	96.69	87.42	17	58.82%	2.4	40	50.00%	3.6
Earth Spirit	Support Offlane	23	27.71%	96.03	58.28	14	57.14%	2.0	9	88.89%	0.8
Io	Support Offlane	71	85.54%	95.36	94.70	7	42.86%	1.0	64	51.56%	5.8
Templar Assassin	Core Safelane	56	67.47%	94.70	88.08	27	55.56%	3.9	29	47.22%	2.6
Shadow Shaman	Support Offlane	40	48.19%	94.04	82.12	25	56.00%	3.6	15	56.25%	1.4
Void Spirit	Core Midlane	10	12.05%	93.38	16.56	5	80.00%	0.7	5	80.00%	0.5
Death Prophet	Core Offlane	28	33.73%	92.72	64.24	7	71.43%	1.0	21	53.45%	1.9
Pangolier	Core Offlane	55	66.27%	92.05	92.05	20	55.00%	2.9	35	45.10%	3.2
Faceless Void	Core Safelane	30	36.14%	91.39	68.87	10	50.00%	1.4	20	65.00%	1.8
Huskar	Core Midlane	9	10.84%	90.73	13.25	3	100.00%	0.4	6	62.50%	0.5
Clockwerk	Support Offlane	7	8.43%	90.07	11.92	5	80.00%	0.7	2	100.00%	0.2
Nyx Assassin	Support Offlane	19	22.89%	89.40	50.99	5	80.00%	0.7	14	52.94%	1.3
Sand King	Core Offlane	30	36.14%	88.74	76.82	16	56.25%	2.3	14	50.00%	1.3
Hoodwink	Support Offlane	37	44.58%	88.08	86.09	22	54.55%	3.1	15	41.18%	1.4
Weaver	Support Offlane	12	14.46%	87.42	24.50	3	66.67%	0.4	9	75.00%	0.8
Abaddon	Support Offlane	24	28.92%	86.75	66.89	10	50.00%	1.4	14	65.38%	1.3
Bane	Support Offlane	28	33.73%	86.09	78.15	17	58.82%	2.4	11	36.84%	1.0
Dragon Knight	Core Offlane	42	50.60%	85.43	90.07	28	50.00%	4.0	14	40.00%	1.3
Beastmaster	Core Offlane	27	32.53%	84.77	69.54	4	50.00%	0.6	23	56.52%	2.1
Night Stalker	Core Offlane	15	18.07%	84.11	43.05	2	0.00%	0.3	13	84.62%	1.2
Bane	Support Safelane	21	25.30%	83.44	66.23	13	61.54%	1.9	8	36.84%	0.7
Dragon Knight	Core Midlane	17	20.48%	82.78	59.60	11	63.64%	1.6	6	40.00%	0.5
Phoenix	Support Safelane	6	7.23%	82.12	10.60	3	100.00%	0.4	3	53.33%	0.3
Kunkka	Core Midlane	26	31.33%	81.46	79.47	12	50.00%	1.7	14	52.94%	1.3
Queen of Pain	Core Midlane	26	31.33%	80.79	74.83	6	66.67%	0.9	20	43.48%	1.8
Lina	Core Midlane	25	30.12%	80.13	77.48	11	54.55%	1.6	14	46.67%	1.3
Death Prophet	Core Midlane	24	28.92%	79.47	72.19	6	50.00%	0.9	18	53.45%	1.6
Chaos Knight	Core Safelane	9	10.84%	78.81	26.49	6	66.67%	0.9	3	75.00%	0.3
Ember Spirit	Core Midlane	45	54.22%	78.15	96.03	17	47.06%	2.4	28	38.24%	2.5
Invoker	Core Midlane	40	48.19%	77.48	94.04	12	58.33%	1.7	28	32.14%	2.5
Monkey King	Support Offlane	8	9.64%	76.82	19.21	3	100.00%	0.4	5	41.67%	0.5
Wraith King	Core Safelane	25	30.12%	76.16	80.79	9	55.56%	1.3	16	43.75%	1.5
Terrorblade	Core Safelane	49	59.04%	75.50	99.34	5	40.00%	0.7	44	40.91%	4.0
Tiny	Core Safelane	33	39.76%	74.83	90.73	19	36.84%	2.7	14	64.29%	1.3
Ursa	Core Safelane	27	32.53%	74.17	84.77	11	45.45%	1.6	16	50.00%	1.5
Leshrac	Core Midlane	11	13.25%	73.51	41.72	5	60.00%	0.7	6	66.67%	0.5
Viper	Core Offlane	5	6.02%	72.85	8.61	2	100.00%	0.3	3	66.67%	0.3
Grimstroke	Support Offlane	29	34.94%	72.19	88.74	15	53.33%	2.1	14	22.22%	1.3
Necrophos	Core Offlane	20	24.10%	71.52	75.50	7	57.14%	1.0	13	38.89%	1.2
Death Prophet	Support Safelane	12	14.46%	70.86	49.67	3	66.67%	0.4	9	53.45%	0.8
Monkey King	Core Safelane	11	13.25%	70.20	47.02	4	75.00%	0.6	7	41.67%	0.6
Lifestealer	Core Safelane	20	24.10%	69.54	76.16	7	71.43%	1.0	13	23.08%	1.2
Mirana	Support Offlane	24	28.92%	68.87	86.75	14	42.86%	2.0	10	45.45%	0.9
Keeper of the Light	Support Offlane	17	20.48%	68.21	70.86	8	50.00%	1.1	9	47.62%	0.8
Keeper of the Light	Core Midlane	17	20.48%	67.55	70.20	8	50.00%	1.1	9	47.62%	0.8
Mars	Core Offlane	35	42.17%	66.89	96.69	16	18.75%	2.3	19	71.43%	1.7
Juggernaut	Core Safelane	11	13.25%	66.23	55.63	7	42.86%	1.0	4	100.00%	0.4
Pangolier	Core Midlane	14	16.87%	65.56	60.26	5	60.00%	0.7	9	45.10%	0.8
Morphling	Core Midlane	6	7.23%	64.90	14.57	2	100.00%	0.3	4	47.83%	0.4
Morphling	Core Safelane	28	33.73%	64.24	91.39	9	33.33%	1.3	19	47.83%	1.7
Phoenix	Core Offlane	4	4.82%	63.58	7.95	2	100.00%	0.3	2	53.33%	0.2
Slardar	Core Offlane	4	4.82%	62.91	9.27	2	100.00%	0.3	2	50.00%	0.2
Keeper of the Light	Core Offlane	4	4.82%	62.25	9.93	2	100.00%	0.3	2	47.62%	0.2
Batrider	Core Midlane	13	15.66%	61.59	58.94	2	50.00%	0.3	11	54.55%	1.0
Razor	Core Safelane	9	10.84%	60.93	43.71	4	50.00%	0.6	5	70.59%	0.5
Puck	Core Midlane	33	39.76%	60.26	98.01	14	35.71%	2.0	19	36.84%	1.7
Clinkz	Core Safelane	9	10.84%	59.60	41.06	3	66.67%	0.4	6	50.00%	0.5
Necrophos	Core Midlane	6	7.23%	58.94	17.22	2	100.00%	0.3	4	38.89%	0.4
Weaver	Core Offlane	4	4.82%	58.28	6.62	1	100.00%	0.1	3	75.00%	0.3
Witch Doctor	Support Safelane	2	2.41%	57.62	3.31	2	100.00%	0.3	0	0.00%	0.0
Enchantress	Support Offlane	9	10.84%	56.95	51.66	6	50.00%	0.9	3	66.67%	0.3
Rubick	Support Offlane	13	15.66%	56.29	71.52	9	44.44%	1.3	4	50.00%	0.4
Grimstroke	Support Safelane	29	34.94%	55.63	98.68	15	40.00%	2.1	14	22.22%	1.3
Tidehunter	Core Offlane	12	14.46%	54.97	68.21	8	37.50%	1.1	4	75.00%	0.4
Lion	Support Offlane	7	8.43%	54.30	48.34	6	50.00%	0.9	1	100.00%	0.1
Doom	Core Offlane	21	25.30%	53.64	92.72	11	36.36%	1.6	10	36.36%	0.9
Dark Seer	Core Offlane	12	14.46%	52.98	62.91	3	66.67%	0.4	9	33.33%	0.8
Phoenix	Support Offlane	23	27.71%	52.32	95.36	12	25.00%	1.7	11	53.33%	1.0
Razor	Core Midlane	21	25.30%	51.66	93.38	9	11.11%	1.3	12	70.59%	1.1
Underlord	Core Offlane	5	6.02%	50.99	22.52	3	66.67%	0.4	2	50.00%	0.2
Elder Titan	Support Safelane	5	6.02%	50.33	23.18	3	66.67%	0.4	2	50.00%	0.2
Phantom Assassin	Core Safelane	14	16.87%	49.67	81.46	6	33.33%	0.9	8	50.00%	0.7
Death Prophet	Support Offlane	8	9.64%	49.01	45.03	2	50.00%	0.3	6	53.45%	0.5
Nyx Assassin	Support Safelane	4	4.82%	48.34	12.58	1	100.00%	0.1	3	52.94%	0.3
Huskar	Core Safelane	3	3.61%	47.68	7.28	1	100.00%	0.1	2	62.50%	0.2
Ancient Apparition	Support Safelane	6	7.23%	47.02	25.17	1	100.00%	0.1	5	40.00%	0.5
Templar Assassin	Core Midlane	12	14.46%	46.36	78.81	6	33.33%	0.9	6	47.22%	0.5
Treant Protector	Support Safelane	3	3.61%	45.70	15.89	3	66.67%	0.4	0	0.00%	0.0
Omniknight	Support Safelane	3	3.61%	45.70	15.89	3	66.67%	0.4	0	0.00%	0.0
Snapfire	Support Offlane	7	8.43%	44.37	50.33	3	66.67%	0.4	4	22.22%	0.4
Queen of Pain	Core Offlane	4	4.82%	43.71	13.91	1	100.00%	0.1	3	43.48%	0.3
Shadow Demon	Support Safelane	4	4.82%	43.05	23.84	3	66.67%	0.4	1	0.00%	0.1
Kunkka	Core Safelane	2	2.41%	42.38	3.97	1	100.00%	0.1	1	52.94%	0.1
Timbersaw	Core Offlane	5	6.02%	41.72	39.74	3	66.67%	0.4	2	0.00%	0.2
Mars	Core Midlane	4	4.82%	41.06	21.19	2	50.00%	0.3	2	71.43%	0.2
Pugna	Support Offlane	18	21.69%	40.40	97.35	8	12.50%	1.1	10	52.17%	0.9
Necrophos	Core Safelane	3	3.61%	39.74	11.26	1	100.00%	0.1	2	38.89%	0.2
Lina	Support Safelane	2	2.41%	39.07	4.64	1	100.00%	0.1	1	46.67%	0.1
Mirana	Core Midlane	2	2.41%	38.41	5.30	1	100.00%	0.1	1	45.45%	0.1
Doom	Support Offlane	2	2.41%	37.75	5.96	1	100.00%	0.1	1	36.36%	0.1
Pangolier	Support Offlane	8	9.64%	37.09	62.25	3	33.33%	0.4	5	45.10%	0.5
Warlock	Support Offlane	1	1.20%	36.42	1.32	1	100.00%	0.1	0	0.00%	0.0
Winter Wyvern	Support Offlane	1	1.20%	36.42	1.32	1	100.00%	0.1	0	0.00%	0.0
Winter Wyvern	Support Safelane	1	1.20%	35.10	1.99	1	100.00%	0.1	0	0.00%	0.0
Earthshaker	Support Offlane	1	1.20%	34.44	2.65	1	100.00%	0.1	0	0.00%	0.0
Tusk	Support Offlane	11	13.25%	33.77	85.43	5	0.00%	0.7	6	80.00%	0.5
Phantom Lancer	Core Safelane	10	12.05%	33.11	74.17	2	50.00%	0.3	8	25.00%	0.7
Sand King	Core Midlane	4	4.82%	32.45	25.83	2	50.00%	0.3	2	50.00%	0.2
Chaos Knight	Core Offlane	3	3.61%	31.79	19.87	2	50.00%	0.3	1	75.00%	0.1
Bloodseeker	Core Safelane	6	7.23%	31.13	47.68	1	0.00%	0.1	5	60.00%	0.5
Ember Spirit	Core Safelane	10	12.05%	30.46	84.11	4	25.00%	0.6	6	38.24%	0.5
Magnus	Core Offlane	5	6.02%	29.80	44.37	2	50.00%	0.3	3	33.33%	0.3
Shadow Shaman	Support Safelane	3	3.61%	29.14	21.85	2	50.00%	0.3	1	56.25%	0.1
Gyrocopter	Support Offlane	8	9.64%	28.48	83.44	6	16.67%	0.9	2	100.00%	0.2
Hoodwink	Support Safelane	5	6.02%	27.81	57.62	3	33.33%	0.4	2	41.18%	0.2
Slark	Core Safelane	3	3.61%	27.15	20.53	1	0.00%	0.1	2	100.00%	0.2
Tusk	Core Midlane	5	6.02%	26.49	54.97	2	0.00%	0.3	3	80.00%	0.3
Earthshaker	Core Offlane	2	2.41%	25.83	17.88	2	50.00%	0.3	0	0.00%	0.0
Treant Protector	Support Offlane	2	2.41%	25.17	18.54	2	50.00%	0.3	0	0.00%	0.0
Ogre Magi	Support Safelane	6	7.23%	24.50	72.85	5	20.00%	0.7	1	100.00%	0.1
Viper	Core Midlane	7	8.43%	23.84	73.51	3	0.00%	0.4	4	66.67%	0.4
Jakiro	Support Offlane	3	3.61%	23.18	38.41	2	50.00%	0.3	1	0.00%	0.1
Undying	Support Safelane	3	3.61%	22.52	37.75	2	50.00%	0.3	1	0.00%	0.1
Death Prophet	Core Safelane	4	4.82%	21.85	45.70	1	0.00%	0.1	3	53.45%	0.3
Ogre Magi	Support Offlane	4	4.82%	21.19	63.58	4	25.00%	0.6	0	100.00%	0.0
Brewmaster	Support Offlane	4	4.82%	20.53	56.95	2	0.00%	0.3	2	83.33%	0.2
Shadow Demon	Support Offlane	6	7.23%	19.87	82.78	4	25.00%	0.6	2	0.00%	0.2
Centaur Warrunner	Core Offlane	5	6.02%	19.21	80.13	5	20.00%	0.7	0	0.00%	0.0
Pangolier	Support Safelane	3	3.61%	18.54	46.36	1	0.00%	0.1	2	45.10%	0.2
Kunkka	Core Offlane	4	4.82%	17.88	64.90	2	0.00%	0.3	2	52.94%	0.2
Clockwerk	Support Safelane	3	3.61%	17.22	56.29	2	0.00%	0.3	1	100.00%	0.1
Legion Commander	Core Offlane	5	6.02%	16.56	67.55	1	0.00%	0.1	4	25.00%	0.4
Tusk	Core Offlane	2	2.41%	15.89	27.15	1	0.00%	0.1	1	80.00%	0.1
Snapfire	Support Safelane	9	10.84%	15.23	100.00	4	0.00%	0.6	5	22.22%	0.5
Viper	Support Safelane	2	2.41%	14.57	37.09	1	0.00%	0.1	1	66.67%	0.1
Viper	Support Offlane	2	2.41%	13.91	36.42	1	0.00%	0.1	1	66.67%	0.1
Pugna	Core Midlane	2	2.41%	13.25	39.07	1	0.00%	0.1	1	52.17%	0.1
Templar Assassin	Support Offlane	2	2.41%	12.58	40.40	1	0.00%	0.1	1	47.22%	0.1
Chen	Support Offlane	2	2.41%	11.92	52.32	1	0.00%	0.1	1	0.00%	0.1
Gyrocopter	Support Safelane	1	1.20%	11.26	31.79	1	0.00%	0.1	0	100.00%	0.0
Silencer	Support Safelane	1	1.20%	10.60	29.14	1	0.00%	0.1	0	0.00%	0.0
Skywrath Mage	Support Offlane	2	2.41%	9.93	61.59	2	0.00%	0.3	0	0.00%	0.0
Nature's Prophet	Core Offlane	1	1.20%	9.27	34.44	1	0.00%	0.1	0	0.00%	0.0
Alchemist	Core Offlane	1	1.20%	9.27	30.46	1	0.00%	0.1	0	0.00%	0.0
Outworld Destroyer	Core Midlane	1	1.20%	7.95	31.13	1	0.00%	0.1	0	0.00%	0.0
Alchemist	Core Safelane	1	1.20%	7.28	32.45	1	0.00%	0.1	0	0.00%	0.0
Winter Wyvern	Core Midlane	1	1.20%	6.62	33.11	1	0.00%	0.1	0	0.00%	0.0
Shadow Fiend	Core Midlane	2	2.41%	5.96	53.64	1	0.00%	0.1	1	0.00%	0.1
Luna	Core Safelane	1	1.20%	5.30	35.76	1	0.00%	0.1	0	0.00%	0.0
Silencer	Support Offlane	1	1.20%	4.64	35.10	1	0.00%	0.1	0	0.00%	0.0
Troll Warlord	Core Safelane	1	1.20%	3.97	29.80	1	0.00%	0.1	0	0.00%	0.0
Luna	Support Offlane	1	1.20%	3.31	33.77	1	0.00%	0.1	0	0.00%	0.0
Lone Druid	Core Safelane	2	2.41%	2.65	54.30	1	0.00%	0.1	1	0.00%	0.1
Disruptor	Support Offlane	3	3.61%	1.99	65.56	1	0.00%	0.1	2	0.00%	0.2
Jakiro	Support Safelane	2	2.41%	1.32	52.98	1	0.00%	0.1	1	0.00%	0.1
Undying	Support Offlane	1	1.20%	0.66	29.14	1	0.00%	0.1	0	0.00%	0.0