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): 10 - Matches: 85

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

Balance rank	Winrate	Pickrate	Contest Rate
42.6	50.3	42.7	19.2

Hero	Position	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Timbersaw	Core Offlane	34	40.00%	100.00	48.62	9	77.78%	1.3	25	72.22%	2.5
Luna	Core Safelane	47	55.29%	99.45	65.19	19	73.68%	2.7	28	61.76%	2.8
Puck	Core Midlane	43	50.59%	98.90	68.51	14	71.43%	2.0	29	62.07%	2.9
Dark Seer	Core Offlane	18	21.18%	98.34	39.23	7	71.43%	1.0	11	76.92%	1.1
Queen of Pain	Core Midlane	59	69.41%	97.79	91.71	24	54.17%	3.4	35	56.41%	3.5
Medusa	Core Safelane	53	62.35%	97.24	86.74	11	45.45%	1.6	42	61.90%	4.2
Brewmaster	Core Offlane	19	22.35%	96.69	40.33	3	33.33%	0.4	16	87.50%	1.6
Viper	Core Offlane	17	20.00%	96.13	39.78	6	100.00%	0.9	11	43.75%	1.1
Bane	Support Offlane	38	44.71%	95.58	77.90	22	63.64%	3.1	16	45.45%	1.6
Weaver	Support Offlane	52	61.18%	95.03	91.16	13	61.54%	1.9	39	48.33%	3.9
Storm Spirit	Core Midlane	29	34.12%	94.48	71.82	16	62.50%	2.3	13	53.33%	1.3
Terrorblade	Core Safelane	29	34.12%	93.92	75.14	12	66.67%	1.7	17	45.00%	1.7
Beastmaster	Core Offlane	43	50.59%	93.37	89.50	6	83.33%	0.9	37	41.86%	3.7
Wraith King	Core Safelane	36	42.35%	92.82	85.64	16	56.25%	2.3	20	47.83%	2.0
Invoker	Core Midlane	50	58.82%	92.27	96.69	12	50.00%	1.7	38	47.37%	3.8
Bane	Support Safelane	40	47.06%	91.71	93.37	23	52.17%	3.3	17	45.45%	1.7
Spirit Breaker	Core Offlane	30	35.29%	91.16	80.11	14	50.00%	2.0	16	60.00%	1.6
Gyrocopter	Core Safelane	17	20.00%	90.61	58.56	8	75.00%	1.1	9	38.46%	0.9
Faceless Void	Core Safelane	24	28.24%	90.06	70.72	4	50.00%	0.6	20	60.00%	2.0
Snapfire	Support Offlane	43	50.59%	89.50	97.24	27	48.15%	3.9	16	42.86%	1.6
Leshrac	Core Midlane	19	22.35%	88.95	62.98	6	66.67%	0.9	13	53.33%	1.3
Tidehunter	Core Offlane	33	38.82%	88.40	87.85	15	53.33%	2.1	18	45.45%	1.8
Outworld Destroyer	Core Midlane	35	41.18%	87.85	88.40	11	54.55%	1.6	24	45.71%	2.4
Weaver	Support Safelane	24	28.24%	87.29	72.93	6	66.67%	0.9	18	48.33%	1.8
Tusk	Support Offlane	17	20.00%	86.74	62.43	9	77.78%	1.3	8	18.18%	0.8
Slardar	Core Offlane	7	8.24%	86.19	14.36	3	66.67%	0.4	4	100.00%	0.4
Broodmother	Core Offlane	18	21.18%	85.64	61.88	5	40.00%	0.7	13	73.33%	1.3
Mars	Core Offlane	49	57.65%	85.08	100.00	15	46.67%	2.1	34	41.86%	3.4
Legion Commander	Core Offlane	35	41.18%	84.53	92.27	10	50.00%	1.4	25	46.67%	2.5
Mirana	Support Offlane	15	17.65%	83.98	60.22	10	70.00%	1.4	5	16.67%	0.5
Io	Support Offlane	39	45.88%	83.43	95.58	18	50.00%	2.6	21	38.71%	2.1
Void Spirit	Core Midlane	18	21.18%	82.87	70.17	11	45.45%	1.6	7	85.71%	0.7
Morphling	Core Safelane	26	30.59%	82.32	81.77	10	60.00%	1.4	16	39.13%	1.6
Kunkka	Core Safelane	6	7.06%	81.77	13.26	3	100.00%	0.4	3	42.86%	0.3
Templar Assassin	Core Safelane	35	41.18%	81.22	95.03	14	50.00%	2.0	21	38.46%	2.1
Shadow Demon	Support Offlane	13	15.29%	80.66	59.67	9	66.67%	1.3	4	20.00%	0.4
Magnus	Core Offlane	14	16.47%	80.11	58.01	5	40.00%	0.7	9	77.78%	0.9
Treant Protector	Support Offlane	6	7.06%	79.56	19.34	5	80.00%	0.7	1	0.00%	0.1
Ember Spirit	Core Midlane	34	40.00%	79.01	98.90	17	47.06%	2.4	17	31.58%	1.7
Troll Warlord	Core Safelane	7	8.24%	78.45	18.78	2	50.00%	0.3	5	88.89%	0.5
Kunkka	Core Midlane	34	40.00%	77.90	99.45	16	37.50%	2.3	18	42.86%	1.8
Ursa	Core Safelane	28	32.94%	77.35	93.92	2	0.00%	0.3	26	50.00%	2.6
Ogre Magi	Support Safelane	18	21.18%	76.80	81.22	13	53.85%	1.9	5	11.11%	0.5
Venomancer	Core Offlane	15	17.65%	76.24	65.75	4	75.00%	0.6	11	36.36%	1.1
Io	Support Safelane	9	10.59%	75.69	41.99	4	75.00%	0.6	5	38.71%	0.5
Outworld Destroyer	Core Safelane	6	7.06%	75.14	16.57	2	100.00%	0.3	4	45.71%	0.4
Chaos Knight	Core Safelane	8	9.41%	74.59	28.18	3	33.33%	0.4	5	100.00%	0.5
Ogre Magi	Support Offlane	15	17.65%	74.03	76.24	11	54.55%	1.6	4	11.11%	0.4
Batrider	Core Midlane	23	27.06%	73.48	88.95	5	40.00%	0.7	18	44.44%	1.8
Phantom Lancer	Core Safelane	17	20.00%	72.93	75.69	4	50.00%	0.6	13	46.15%	1.3
Lion	Support Safelane	4	4.71%	72.38	15.47	4	75.00%	0.6	0	0.00%	0.0
Drow Ranger	Core Safelane	20	23.53%	71.82	84.53	5	40.00%	0.7	15	46.67%	1.5
Luna	Core Offlane	10	11.76%	71.27	54.70	4	50.00%	0.6	6	61.76%	0.6
Monkey King	Support Offlane	15	17.65%	70.72	71.27	3	66.67%	0.4	12	39.29%	1.2
Outworld Destroyer	Core Offlane	10	11.76%	70.17	51.38	3	66.67%	0.4	7	45.71%	0.7
Pangolier	Core Midlane	2	2.35%	69.61	3.31	2	100.00%	0.3	0	50.00%	0.0
Witch Doctor	Support Safelane	2	2.35%	69.06	2.76	2	100.00%	0.3	0	0.00%	0.0
Shadow Shaman	Support Offlane	2	2.35%	68.51	2.21	2	100.00%	0.3	0	0.00%	0.0
Razor	Core Midlane	12	14.12%	67.96	61.33	3	33.33%	0.4	9	63.64%	0.9
Troll Warlord	Core Offlane	3	3.53%	67.40	3.87	1	100.00%	0.1	2	88.89%	0.2
Disruptor	Support Safelane	16	18.82%	66.85	85.08	12	41.67%	1.7	4	50.00%	0.4
Nyx Assassin	Support Safelane	9	10.59%	66.30	51.93	4	50.00%	0.6	5	61.54%	0.5
Death Prophet	Core Safelane	5	5.88%	65.75	19.89	3	66.67%	0.4	2	71.43%	0.2
Earth Spirit	Support Offlane	5	5.88%	65.19	22.65	3	66.67%	0.4	2	66.67%	0.2
Abaddon	Support Safelane	4	4.71%	64.64	9.39	1	100.00%	0.1	3	66.67%	0.3
Phantom Assassin	Core Safelane	23	27.06%	64.09	98.34	10	30.00%	1.4	13	46.15%	1.3
Spirit Breaker	Support Offlane	11	12.94%	63.54	66.30	5	40.00%	0.7	6	60.00%	0.6
Razor	Core Offlane	4	4.71%	62.98	9.94	1	100.00%	0.1	3	63.64%	0.3
Death Prophet	Core Offlane	7	8.24%	62.43	43.09	4	50.00%	0.6	3	71.43%	0.3
Centaur Warrunner	Core Offlane	6	7.06%	61.88	24.86	2	100.00%	0.3	4	25.00%	0.4
Nyx Assassin	Support Offlane	15	17.65%	61.33	83.43	7	28.57%	1.0	8	61.54%	0.8
Templar Assassin	Core Midlane	8	9.41%	60.77	48.07	3	66.67%	0.4	5	38.46%	0.5
Night Stalker	Core Offlane	14	16.47%	60.22	79.01	4	25.00%	0.6	10	53.85%	1.0
Snapfire	Support Safelane	11	12.94%	59.67	74.59	7	42.86%	1.0	4	42.86%	0.4
Lycan	Core Offlane	9	10.59%	59.12	55.25	2	50.00%	0.3	7	50.00%	0.7
Sven	Core Safelane	15	17.65%	58.56	86.19	6	33.33%	0.9	9	44.44%	0.9
Lycan	Core Midlane	4	4.71%	58.01	14.92	1	100.00%	0.1	3	50.00%	0.3
Doom	Core Offlane	11	12.94%	57.46	76.80	6	33.33%	0.9	5	57.14%	0.5
Weaver	Core Offlane	4	4.71%	56.91	16.02	1	100.00%	0.1	3	48.33%	0.3
Anti-Mage	Core Safelane	6	7.06%	56.35	26.52	1	100.00%	0.1	5	40.00%	0.5
Timbersaw	Core Safelane	11	12.94%	55.80	72.38	3	0.00%	0.4	8	72.22%	0.8
Shadow Demon	Support Safelane	4	4.71%	55.25	23.76	3	66.67%	0.4	1	20.00%	0.1
Rubick	Support Offlane	13	15.29%	54.70	90.61	10	40.00%	1.4	3	0.00%	0.3
Death Prophet	Support Safelane	2	2.35%	54.14	4.42	1	100.00%	0.1	1	71.43%	0.1
Monkey King	Core Offlane	10	11.76%	53.59	66.85	2	50.00%	0.3	8	39.29%	0.8
Razor	Core Safelane	12	14.12%	53.04	78.45	3	0.00%	0.4	9	63.64%	0.9
Bloodseeker	Core Offlane	9	10.59%	52.49	67.40	3	66.67%	0.4	6	16.67%	0.6
Disruptor	Support Offlane	5	5.88%	51.93	44.20	4	50.00%	0.6	1	50.00%	0.1
Queen of Pain	Support Offlane	2	2.35%	51.38	4.97	1	100.00%	0.1	1	56.41%	0.1
Mars	Core Safelane	3	3.53%	50.83	12.15	1	100.00%	0.1	2	41.86%	0.2
Clockwerk	Support Offlane	7	8.24%	50.28	60.77	4	50.00%	0.6	3	25.00%	0.3
Morphling	Core Midlane	3	3.53%	49.72	12.71	1	100.00%	0.1	2	39.13%	0.2
Tidehunter	Support Offlane	2	2.35%	49.17	5.52	1	100.00%	0.1	1	45.45%	0.1
Snapfire	Core Midlane	2	2.35%	48.62	6.08	1	100.00%	0.1	1	42.86%	0.1
Gyrocopter	Core Offlane	2	2.35%	48.07	6.63	1	100.00%	0.1	1	38.46%	0.1
Necrophos	Core Midlane	3	3.53%	47.51	13.81	1	100.00%	0.1	2	33.33%	0.2
Silencer	Support Safelane	3	3.53%	46.96	18.23	2	50.00%	0.3	1	100.00%	0.1
Enchantress	Support Offlane	3	3.53%	46.41	17.68	2	50.00%	0.3	1	100.00%	0.1
Nature's Prophet	Support Safelane	3	3.53%	45.86	17.13	2	50.00%	0.3	1	100.00%	0.1
Hoodwink	Support Offlane	5	5.88%	45.30	50.28	4	50.00%	0.6	1	0.00%	0.1
Treant Protector	Support Safelane	5	5.88%	44.75	50.83	4	50.00%	0.6	1	0.00%	0.1
Viper	Core Safelane	8	9.41%	44.20	69.61	3	33.33%	0.4	5	43.75%	0.5
Ember Spirit	Core Safelane	2	2.35%	43.65	7.18	1	100.00%	0.1	1	31.58%	0.1
Chen	Support Offlane	1	1.18%	43.09	1.10	1	100.00%	0.1	0	0.00%	0.0
Tiny	Support Offlane	1	1.18%	43.09	1.10	1	100.00%	0.1	0	0.00%	0.0
Slark	Core Midlane	1	1.18%	41.99	1.66	1	100.00%	0.1	0	0.00%	0.0
Spirit Breaker	Core Midlane	6	7.06%	41.44	56.35	3	33.33%	0.4	3	60.00%	0.3
Dark Willow	Support Offlane	10	11.76%	40.88	92.82	10	30.00%	1.4	0	0.00%	0.0
Clockwerk	Support Safelane	2	2.35%	40.33	7.73	1	100.00%	0.1	1	25.00%	0.1
Tusk	Core Offlane	2	2.35%	39.78	8.84	1	100.00%	0.1	1	18.18%	0.1
Tusk	Support Safelane	2	2.35%	39.23	8.29	1	100.00%	0.1	1	18.18%	0.1
Tidehunter	Support Safelane	4	4.71%	38.67	28.73	2	50.00%	0.3	2	45.45%	0.2
Earth Spirit	Core Midlane	3	3.53%	38.12	23.20	2	50.00%	0.3	1	66.67%	0.1
Naga Siren	Core Safelane	5	5.88%	37.57	46.96	2	50.00%	0.3	3	33.33%	0.3
Naga Siren	Core Offlane	5	5.88%	37.02	47.51	2	50.00%	0.3	3	33.33%	0.3
Io	Core Offlane	7	8.24%	36.46	69.06	3	33.33%	0.4	4	38.71%	0.4
Juggernaut	Core Safelane	4	4.71%	35.91	44.75	3	33.33%	0.4	1	100.00%	0.1
Grimstroke	Support Offlane	11	12.94%	35.36	97.79	9	22.22%	1.3	2	50.00%	0.2
Undying	Core Offlane	2	2.35%	34.81	10.50	1	100.00%	0.1	1	0.00%	0.1
Undying	Support Safelane	2	2.35%	34.25	11.60	1	100.00%	0.1	1	0.00%	0.1
Elder Titan	Support Offlane	2	2.35%	33.70	11.05	1	100.00%	0.1	1	0.00%	0.1
Jakiro	Support Safelane	3	3.53%	33.15	24.31	2	50.00%	0.3	1	50.00%	0.1
Lion	Support Offlane	7	8.24%	32.60	82.32	7	28.57%	1.0	0	0.00%	0.0
Broodmother	Core Midlane	4	4.71%	32.04	29.83	1	0.00%	0.1	3	73.33%	0.3
Monkey King	Core Safelane	10	11.76%	31.49	87.29	2	0.00%	0.3	8	39.29%	0.8
Mirana	Support Safelane	3	3.53%	30.94	27.62	2	50.00%	0.3	1	16.67%	0.1
Jakiro	Support Offlane	4	4.71%	30.39	54.14	3	33.33%	0.4	1	50.00%	0.1
Riki	Core Safelane	2	2.35%	29.83	22.10	2	50.00%	0.3	0	0.00%	0.0
Shadow Fiend	Core Safelane	2	2.35%	29.83	20.99	2	50.00%	0.3	0	0.00%	0.0
Shadow Fiend	Core Midlane	2	2.35%	28.73	20.44	2	50.00%	0.3	0	0.00%	0.0
Pugna	Support Offlane	2	2.35%	28.18	21.55	2	50.00%	0.3	0	0.00%	0.0
Lina	Core Midlane	11	12.94%	27.62	96.13	3	0.00%	0.4	8	37.50%	0.8
Dawnbreaker	Support Offlane	3	3.53%	27.07	49.17	3	33.33%	0.4	0	0.00%	0.0
Dark Seer	Core Safelane	3	3.53%	26.52	27.07	1	0.00%	0.1	2	76.92%	0.2
Mars	Core Midlane	7	8.24%	25.97	79.56	2	0.00%	0.3	5	41.86%	0.5
Pangolier	Core Offlane	7	8.24%	25.41	94.48	6	16.67%	0.9	1	50.00%	0.1
Legion Commander	Core Safelane	4	4.71%	24.86	53.59	1	0.00%	0.1	3	46.67%	0.3
Legion Commander	Support Safelane	4	4.71%	24.31	53.04	1	0.00%	0.1	3	46.67%	0.3
Spirit Breaker	Core Safelane	6	7.06%	23.76	80.66	3	0.00%	0.4	3	60.00%	0.3
Dragon Knight	Core Offlane	2	2.35%	23.20	25.97	1	0.00%	0.1	1	100.00%	0.1
Dragon Knight	Core Midlane	2	2.35%	22.65	25.41	1	0.00%	0.1	1	100.00%	0.1
Terrorblade	Core Offlane	5	5.88%	22.10	74.03	2	0.00%	0.3	3	45.00%	0.3
Leshrac	Core Safelane	3	3.53%	21.55	45.30	1	0.00%	0.1	2	53.33%	0.2
Axe	Core Offlane	3	3.53%	20.99	46.41	1	0.00%	0.1	2	50.00%	0.2
Doom	Core Midlane	4	4.71%	20.44	67.96	2	0.00%	0.3	2	57.14%	0.2
Enchantress	Support Safelane	3	3.53%	19.89	59.12	2	0.00%	0.3	1	100.00%	0.1
Morphling	Core Offlane	3	3.53%	19.34	52.49	1	0.00%	0.1	2	39.13%	0.2
Death Prophet	Core Midlane	2	2.35%	18.78	29.28	1	0.00%	0.1	1	71.43%	0.1
Nature's Prophet	Core Offlane	5	5.88%	18.23	90.06	4	0.00%	0.6	1	100.00%	0.1
Necrophos	Core Offlane	3	3.53%	17.68	55.80	1	0.00%	0.1	2	33.33%	0.2
Gyrocopter	Support Offlane	4	4.71%	17.13	73.48	2	0.00%	0.3	2	38.46%	0.2
Spirit Breaker	Support Safelane	2	2.35%	16.57	40.88	1	0.00%	0.1	1	60.00%	0.1
Sand King	Core Offlane	5	5.88%	16.02	82.87	2	0.00%	0.3	3	25.00%	0.3
Queen of Pain	Core Offlane	2	2.35%	15.47	41.44	1	0.00%	0.1	1	56.41%	0.1
Wraith King	Core Offlane	2	2.35%	14.92	42.54	1	0.00%	0.1	1	47.83%	0.1
Snapfire	Core Offlane	2	2.35%	14.36	43.65	1	0.00%	0.1	1	42.86%	0.1
Gyrocopter	Support Safelane	2	2.35%	13.81	45.86	1	0.00%	0.1	1	38.46%	0.1
Pangolier	Support Offlane	4	4.71%	13.26	83.98	3	0.00%	0.4	1	50.00%	0.1
Sand King	Core Safelane	2	2.35%	12.71	49.72	1	0.00%	0.1	1	25.00%	0.1
Mirana	Core Offlane	1	1.18%	12.15	36.46	1	0.00%	0.1	0	16.67%	0.0
Lone Druid	Core Offlane	1	1.18%	11.60	35.91	1	0.00%	0.1	0	0.00%	0.0
Grimstroke	Core Offlane	1	1.18%	11.05	35.36	1	0.00%	0.1	0	50.00%	0.0
Jakiro	Core Offlane	1	1.18%	11.05	35.36	1	0.00%	0.1	0	50.00%	0.0
Winter Wyvern	Core Offlane	1	1.18%	9.94	33.70	1	0.00%	0.1	0	0.00%	0.0
Nature's Prophet	Core Midlane	1	1.18%	9.39	38.67	1	0.00%	0.1	0	100.00%	0.0
Hoodwink	Core Offlane	1	1.18%	8.84	38.12	1	0.00%	0.1	0	0.00%	0.0
Underlord	Core Offlane	3	3.53%	8.29	77.35	2	0.00%	0.3	1	0.00%	0.1
Bristleback	Core Midlane	1	1.18%	7.73	37.57	1	0.00%	0.1	0	0.00%	0.0
Slark	Core Safelane	1	1.18%	7.18	37.02	1	0.00%	0.1	0	0.00%	0.0
Witch Doctor	Support Offlane	1	1.18%	6.63	33.15	1	0.00%	0.1	0	0.00%	0.0
Chen	Support Safelane	1	1.18%	6.08	30.39	1	0.00%	0.1	0	0.00%	0.0
Grimstroke	Support Safelane	1	1.18%	5.52	31.49	1	0.00%	0.1	0	50.00%	0.0
Pangolier	Support Safelane	1	1.18%	5.52	31.49	1	0.00%	0.1	0	50.00%	0.0
Dark Willow	Support Safelane	1	1.18%	4.42	32.04	1	0.00%	0.1	0	0.00%	0.0
Pugna	Core Midlane	1	1.18%	3.87	32.60	1	0.00%	0.1	0	0.00%	0.0
Tinker	Core Midlane	2	2.35%	3.31	57.46	1	0.00%	0.1	1	0.00%	0.1
Dawnbreaker	Support Safelane	2	2.35%	2.76	64.64	2	0.00%	0.3	0	0.00%	0.0
Winter Wyvern	Support Safelane	2	2.35%	2.76	64.64	2	0.00%	0.3	0	0.00%	0.0
Undying	Support Offlane	2	2.35%	1.66	56.91	1	0.00%	0.1	1	0.00%	0.1
Dawnbreaker	Core Safelane	2	2.35%	1.10	63.54	2	0.00%	0.3	0	0.00%	0.0
Oracle	Support Offlane	1	1.18%	0.55	35.36	1	0.00%	0.1	0	0.00%	0.0