Petrov Aleksandr
From Kirov, Russia
EMA: 15990461
Online rating
Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).
170 place (288.56).
how we calculated rating score
max_coefficients = (3.71 * 1 + 3.70 * 1 + 3.69 * 1) = 11.1
p1 = (345.79 * 3.50 * 1 + 48.95 * 3.71 * 1 + 362.96 * 3.69 * 1 + 384.62 * 2.60 * 1 + 0) / (3.50 * 1 + 3.71 * 1 + 3.69 * 1 + 2.60 * 1 + 1) = 257.3255172413793
p2 = (362.96 * 3.69 * 1 + 345.79 * 3.50 * 1 + 384.62 * 2.60 * 1) / max_coefficients = 319.7846846846847
score = 257.3255172413793 * 0.5 + 319.7846846846847 * 0.5 = 288.55510096303203
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2021-02-01 | 170 | 288.56 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 385 |
|
25/40 | 100% | 2.60 | ONLINE | Demons of winter wind |
| 2 | 363 |
|
87/136 | 100% | 3.69 | ONLINE | Riichi Online Open Team Cup |
| 3 | 346 |
|
71/108 | 100% | 3.50 | ONLINE | Spring tournament |
| 4 | 49 |
|
137/144 | 100% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 |