ELO

ELO is a system where you gain ranking points (ELO) for killing other players in Ranked Deathmatch. When you kill somebody, you can gain between 0 and 5 ELO. When you die, you lose between 0 and 5 ELO. How much you gain or lose depends on the difference between your ELO and the person you killed/were killed by. Usually, high ELO is supposed to denote high skill, but ELO is broken in slay at the moment.

ELO Calculations

Every player starts with 2500 ELO.

ELO table
ELO Difference	% Chance to win		ELO Difference	% Chance to win
	Stronger player	Weaker player		Stronger player	Weaker player
0 - 3	50	50	189 - 197	75	25
4 - 10	51	49	198 - 206	76	24
11 - 17	52	48	207 - 215	77	23
18 - 25	53	47	216 - 225	78	22
26 - 32	54	46	226 - 235	79	21
33 - 39	55	45	236 - 245	80	20
40 - 46	56	44	226 - 235	81	19
47 - 53	57	43	257 - 267	82	18
54 - 61	58	42	268 - 278	83	17
62 - 68	59	41	279 - 290	84	16
69 - 76	60	40	291 - 302	85	15
77 - 83	61	39	303 - 315	86	14
84 - 91	62	38	316 - 328	87	13
92 - 98	63	37	329 - 344	88	12
99 - 106	64	36	345 - 357	89	11
107 - 113	65	35	358 - 374	90	10
114 - 121	66	34	375 - 391	91	9
122 - 129	67	33	392 - 411	92	8
130 - 137	68	32	412 - 432	93	7
138 - 145	69	31	433 - 456	94	6
146 - 153	70	30	457 - 484	95	5
154 - 162	71	29	485 - 517	96	4
163 - 170	72	28	518 - 559	97	3
163 - 170	73	27	560 - 619	98	2
180 - 188	74	26	620 +	99	1

Example: If first player has 2100 elo and second has 2600 elo, the second player has a 96% chance of winning.

ELO equation:

ELO_new=ELO_old+5*(1-W_ch)
ELO_new = ELO after battle
ELO_old = ELO before battle
W_ch = Chance of winning (example: 70% = 0.70)

How elo is calculated : Player A has 2600 ELO, and player B has 2400 ELO. 2600-2400 = 200. The 200 point difference means that player A has 92% chance of winning.

• If player A kills player B, player A get 5*(1-0.76)= 1.2 = 1 ELO.
• If player B kills player A, player B get 5*(1-0.24)= 3.8 = 3 EL

Player B gets only 3 elo, but will get (3.8+0.8) = 4 ELO from their next kill.