Dergunov Aleksey

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).

103 place (303.43).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75

p1 = (510.64 * 3.10 * 0.29 + 611.94 * 3.50 * 0.43 + 214.95 * 4 * 1 + 486.49 * 4.05 * 0.57 + 252.87 * 3.75 * 1) / (3.10 * 0.29 + 3.50 * 0.43 + 4 * 1 + 4.05 * 0.57 + 3.75 * 1) = 345.7149191080439

p2 = (486.49 * 4.05 * 0.57 + 252.87 * 3.75 * 1 + 611.94 * 3.50 * 0.43 + 214.95 * 4 * 1) / max_coefficients = 261.14372881355933

score = 345.7149191080439 * 0.5 + 261.14372881355933 * 0.5 = 303.42932396080164

Rating changes

Show

Date Place Points Reason
2023-10-12 103 315.22 -> 303.43

Moscow Riichi 2022: 71% -> 57%

2023-09-28 104 -> 103 315.22
2023-09-20 98 -> 104 330.33 -> 315.22

Tenpai can't buy happiness: 57% -> 43%

2023-09-09 99 -> 98 330.33
2023-09-03 77 -> 99 339.23 -> 330.33

SPB Riichi Open 2023: 0% -> 100%

2023-08-27 76 -> 77 339.23
2023-08-19 72 -> 76 350.09 -> 339.23

Agari team tournament: 43% -> 29%

2023-08-12 74 -> 72 356.10 -> 350.09

Moscow Riichi 2022: 86% -> 71%

2023-07-20 70 -> 74 371.41 -> 356.10

Tenpai can't buy happiness: 71% -> 57%

2023-07-03 71 -> 70 371.41

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 215 2023-09-03 85/108 100% 4.00 RR SPB Riichi Open 2023
2 253 2023-06-11 66/88 100% 3.75 RR Money can not buy tenpai
3 486 2022-06-12 58/112 57% 4.05 RR Moscow Riichi 2022
4 612 2022-03-20 27/68 43% 3.50 RR Tenpai can't buy happiness
5 511 2021-12-19 24/48 29% 3.10 RR Agari team tournament