Dubrovin Sergey

Internal rating (RR)

Rating date May 24, 2022 (latest changes April 30, 2022).

223 place (73.45).

max_coefficients = (4.05 * 1 + 3.85 * 1 + 3.50 * 1 + 3.45 * 1) = 14.850000000000001

p1 = (391.30 * 2.50 * 0.14 + 410.26 * 2.90 * 0.29 + 0 + 0 + 0) / (2.50 * 0.14 + 2.90 * 0.29 + 1 + 1 + 1) = 114.60229634620072

p2 = (410.26 * 2.90 * 0.29 + 391.30 * 2.50 * 0.14) / max_coefficients = 32.303030303030305

score = 114.60229634620072 * 0.5 + 32.303030303030305 * 0.5 = 73.45266332461551

all results

Date	Place	Points	Reason
2022-04-30	225 -> 223	92.49 -> 73.45	North Cup 2018: 43% -> 29%
2022-03-30	222 -> 225	106.20 -> 92.49	West cup 2018: 29% -> 14%
2022-03-20	212 -> 222	106.29 -> 106.20
2022-02-28	210 -> 212	121.38 -> 106.29	North Cup 2018: 57% -> 43%
2022-01-30	196 -> 210	180.41 -> 121.38	West cup 2018: 43% -> 29% RCR Saint Petersburg South Cup 2018: 14% -> 0%
2021-12-30	196	189.32 -> 180.41	North Cup 2018: 71% -> 57%
2021-12-19	195 -> 196	189.32
2021-11-30	183 -> 195	218.78 -> 189.32	RCR Saint Petersburg South Cup 2018: 29% -> 14% West cup 2018: 57% -> 43%
2021-11-28	177 -> 183	218.78
2021-11-06	174 -> 177	218.78

#	Base rank	Date	Place	Power	Coefficient	Type	Tournament
1	410	2018-12-23	24/40	29%	2.90	RR	North Cup 2018
2	391	2018-09-23	15/24	14%	2.50	RR	West cup 2018
3	592	2018-06-11	30/72	0%	3.55	EMA	RCR Saint Petersburg South Cup 2018
4	290	2018-03-04	23/32	0%	2.70	RR	East Cup 2018
5	410	2017-12-11	50/84	0%	3.40	EMA	VI Russian Riichi Championship 2017
6	641	2017-06-03	15/40	0%	1.80	RR	Saint Petersburg championship. West cup 2017
7	209	2017-03-18	35/44	0%	1.90	RR	Saint Petersburg championship. South cup 2017
8	14	2016-12-04	71/72	0%	3.25	EMA	Saint Petersburg Riichi Open 2016