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.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 5 - Median hero bans (mb): 6 - Matches: 61

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

Balance rank	Winrate	Pickrate	Contest Rate
62.7	80.0	47.9	40.5

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Timbersaw	15	24.59%	100.00	15.84	3	100.00%	0.6	12	75.00%	2.0
Batrider	19	31.15%	99.01	30.69	4	100.00%	0.8	15	60.00%	2.5
Queen of Pain	44	72.13%	98.02	77.23	20	60.00%	4.0	24	54.17%	4.0
Void Spirit	15	24.59%	97.03	28.71	8	75.00%	1.6	7	71.43%	1.2
Weaver	50	81.97%	96.04	85.15	18	38.89%	3.6	32	68.75%	5.3
Beastmaster	43	70.49%	95.05	81.19	14	64.29%	2.8	29	44.83%	4.8
Phantom Assassin	32	52.46%	94.06	69.31	13	53.85%	2.6	19	63.16%	3.2
Nyx Assassin	23	37.70%	93.07	55.45	20	60.00%	4.0	3	66.67%	0.5
Io	58	95.08%	92.08	97.03	11	54.55%	2.2	47	44.68%	7.8
Grimstroke	25	40.98%	91.09	61.39	16	56.25%	3.2	9	66.67%	1.5
Morphling	30	49.18%	90.10	67.33	7	57.14%	1.4	23	56.52%	3.8
Ember Spirit	29	47.54%	89.11	71.29	9	55.56%	1.8	20	55.00%	3.3
Invoker	36	59.02%	88.12	80.20	8	75.00%	1.6	28	39.29%	4.7
Spirit Breaker	50	81.97%	87.13	96.04	25	48.00%	5.0	25	44.00%	4.2
Wraith King	20	32.79%	86.14	52.48	12	58.33%	2.4	8	62.50%	1.3
Hoodwink	12	19.67%	85.15	31.68	7	71.43%	1.4	5	60.00%	0.8
Broodmother	7	11.48%	84.16	10.89	4	100.00%	0.8	3	33.33%	0.5
Kunkka	39	63.93%	83.17	87.13	16	50.00%	3.2	23	47.83%	3.8
Puck	36	59.02%	82.18	84.16	14	50.00%	2.8	22	50.00%	3.7
Medusa	38	62.30%	81.19	86.14	9	55.56%	1.8	29	44.83%	4.8
Mars	43	70.49%	80.20	93.07	20	35.00%	4.0	23	65.22%	3.8
Bane	27	44.26%	79.21	74.26	17	47.06%	3.4	10	70.00%	1.7
Tidehunter	21	34.43%	78.22	57.43	4	50.00%	0.8	17	58.82%	2.8
Death Prophet	9	14.75%	77.23	27.72	7	71.43%	1.4	2	50.00%	0.3
Outworld Destroyer	39	63.93%	76.24	92.08	10	40.00%	2.0	29	48.28%	4.8
Storm Spirit	28	45.90%	75.25	79.21	13	38.46%	2.6	15	66.67%	2.5
Clockwerk	12	19.67%	74.26	35.64	7	71.43%	1.4	5	40.00%	0.8
Dark Seer	14	22.95%	73.27	41.58	4	50.00%	0.8	10	70.00%	1.7
Disruptor	21	34.43%	72.28	72.28	16	56.25%	3.2	5	20.00%	0.8
Snapfire	35	57.38%	71.29	91.09	22	36.36%	4.4	13	69.23%	2.2
Enchantress	7	11.48%	70.30	12.87	2	100.00%	0.4	5	60.00%	0.8
Monkey King	30	49.18%	69.31	83.17	6	66.67%	1.2	24	37.50%	4.0
Razor	35	57.38%	68.32	90.10	15	46.67%	3.0	20	40.00%	3.3
Juggernaut	7	11.48%	67.33	22.77	4	75.00%	0.8	3	66.67%	0.5
Bloodseeker	14	22.95%	66.34	45.54	5	80.00%	1.0	9	33.33%	1.5
Luna	22	36.07%	65.35	76.24	11	36.36%	2.2	11	72.73%	1.8
Earth Spirit	6	9.84%	64.36	19.80	5	80.00%	1.0	1	0.00%	0.2
Drow Ranger	17	27.87%	63.37	60.40	6	50.00%	1.2	11	54.55%	1.8
Enigma	7	11.48%	62.38	14.85	1	100.00%	0.2	6	66.67%	1.0
Lycan	16	26.23%	61.39	56.44	5	60.00%	1.0	11	45.45%	1.8
Tinker	17	27.87%	60.40	64.36	5	80.00%	1.0	12	25.00%	2.0
Bristleback	3	4.92%	59.41	1.98	1	100.00%	0.2	2	100.00%	0.3
Abaddon	13	21.31%	58.42	48.51	4	50.00%	0.8	9	55.56%	1.5
Jakiro	15	24.59%	57.43	66.34	10	50.00%	2.0	5	40.00%	0.8
Lina	28	45.90%	56.44	94.06	8	25.00%	1.6	20	50.00%	3.3
Naga Siren	9	14.75%	55.45	33.66	3	66.67%	0.6	6	50.00%	1.0
Viper	11	18.03%	54.46	44.55	4	50.00%	0.8	7	57.14%	1.2
Terrorblade	28	45.90%	53.47	95.05	7	28.57%	1.4	21	42.86%	3.5
Warlock	2	3.28%	52.48	2.97	2	100.00%	0.4	0	0.00%	0.0
Pangolier	12	19.67%	51.49	59.41	7	28.57%	1.4	5	100.00%	0.8
Shadow Demon	12	19.67%	50.50	65.35	8	50.00%	1.6	4	25.00%	0.7
Windranger	7	11.48%	49.50	39.60	6	50.00%	1.2	1	100.00%	0.2
Lion	5	8.20%	48.51	24.75	3	66.67%	0.6	2	50.00%	0.3
Ancient Apparition	2	3.28%	47.52	3.96	1	100.00%	0.2	1	100.00%	0.2
Rubick	11	18.03%	46.53	68.32	8	50.00%	1.6	3	0.00%	0.5
Faceless Void	11	18.03%	45.54	50.50	0	0.00%	0.0	11	45.45%	1.8
Doom	10	16.39%	44.55	58.42	4	50.00%	0.8	6	33.33%	1.0
Phantom Lancer	18	29.51%	43.56	89.11	6	33.33%	1.2	12	33.33%	2.0
Troll Warlord	7	11.48%	42.57	40.59	3	33.33%	0.6	4	75.00%	0.7
Elder Titan	3	4.92%	41.58	13.86	3	66.67%	0.6	0	0.00%	0.0
Oracle	6	9.84%	40.59	34.65	4	50.00%	0.8	2	50.00%	0.3
Venomancer	8	13.11%	39.60	46.53	3	66.67%	0.6	5	20.00%	0.8
Nature's Prophet	9	14.75%	38.61	63.37	6	50.00%	1.2	3	0.00%	0.5
Ursa	13	21.31%	37.62	78.22	4	25.00%	0.8	9	44.44%	1.5
Legion Commander	8	13.11%	36.63	54.46	4	50.00%	0.8	4	25.00%	0.7
Chaos Knight	7	11.48%	35.64	51.49	5	40.00%	1.0	2	50.00%	0.3
Dark Willow	15	24.59%	34.65	98.02	11	27.27%	2.2	4	25.00%	0.7
Sven	3	4.92%	33.66	16.83	2	50.00%	0.4	1	100.00%	0.2
Pudge	1	1.64%	32.67	0.99	1	100.00%	0.2	0	0.00%	0.0
Axe	1	1.64%	32.67	4.95	1	100.00%	0.2	0	0.00%	0.0
Lifestealer	9	14.75%	30.69	62.38	2	50.00%	0.4	7	28.57%	1.2
Night Stalker	20	32.79%	29.70	100.00	4	0.00%	0.8	16	31.25%	2.7
Pugna	2	3.28%	28.71	9.90	1	100.00%	0.2	1	0.00%	0.2
Skywrath Mage	2	3.28%	28.71	9.90	1	100.00%	0.2	1	0.00%	0.2
Treant Protector	12	19.67%	26.73	99.01	10	20.00%	2.0	2	50.00%	0.3
Silencer	5	8.20%	25.74	43.56	3	33.33%	0.6	2	50.00%	0.3
Templar Assassin	8	13.11%	24.75	70.30	2	50.00%	0.4	6	16.67%	1.0
Huskar	3	4.92%	23.76	23.76	1	100.00%	0.2	2	0.00%	0.3
Visage	2	3.28%	22.77	21.78	2	50.00%	0.4	0	0.00%	0.0
Mirana	2	3.28%	22.77	21.78	2	50.00%	0.4	0	0.00%	0.0
Slardar	4	6.56%	20.79	32.67	1	0.00%	0.2	3	66.67%	0.5
Spectre	1	1.64%	19.80	7.92	0	0.00%	0.0	1	100.00%	0.2
Earthshaker	1	1.64%	19.80	7.92	0	0.00%	0.0	1	100.00%	0.2
Phoenix	1	1.64%	19.80	7.92	0	0.00%	0.0	1	100.00%	0.2
Chen	5	8.20%	16.83	49.50	2	0.00%	0.4	3	66.67%	0.5
Zeus	3	4.92%	15.84	38.61	3	33.33%	0.6	0	0.00%	0.0
Ogre Magi	3	4.92%	15.84	38.61	3	33.33%	0.6	0	0.00%	0.0
Centaur Warrunner	3	4.92%	15.84	38.61	3	33.33%	0.6	0	0.00%	0.0
Leshrac	8	13.11%	12.87	82.18	2	0.00%	0.4	6	33.33%	1.0
Dragon Knight	2	3.28%	11.88	11.88	0	0.00%	0.0	2	50.00%	0.3
Underlord	5	8.20%	10.89	75.25	5	20.00%	1.0	0	0.00%	0.0
Gyrocopter	2	3.28%	9.90	26.73	1	0.00%	0.2	1	100.00%	0.2
Arc Warden	2	3.28%	9.90	26.73	1	0.00%	0.2	1	100.00%	0.2
Necrophos	5	8.20%	7.92	73.27	2	0.00%	0.4	3	33.33%	0.5
Shadow Fiend	2	3.28%	6.93	53.47	2	0.00%	0.4	0	0.00%	0.0
Tusk	1	1.64%	5.94	18.81	0	0.00%	0.0	1	0.00%	0.2
Slark	2	3.28%	4.95	42.57	1	0.00%	0.2	1	0.00%	0.2
Anti-Mage	3	4.92%	3.96	47.52	0	0.00%	0.0	3	0.00%	0.5
Shadow Shaman	1	1.64%	2.97	29.70	1	0.00%	0.2	0	0.00%	0.0
Winter Wyvern	1	1.64%	1.98	18.81	0	0.00%	0.0	1	0.00%	0.2
Sand King	4	6.56%	0.99	89.11	3	0.00%	0.6	1	0.00%	0.2