Perfilev Roman
From Arkhangelsk, Russia
Online rating
Rating date April 7, 2023 (latest changes April 7, 2023).
89 place (236.14).
how we calculated rating score
max_coefficients = (2.80 * 1 + 2.30 * 1 + 2.60 * 0.71) = 6.95718
p1 = (126.21 * 3.45 * 0.14 + 735.63 * 3.25 * 0.57 + 0 + 0 + 0) / (3.45 * 0.14 + 3.25 * 0.57 + 1 + 1 + 1) = 266.9748254924482
p2 = (735.63 * 3.25 * 0.57 + 126.21 * 3.45 * 0.14) / max_coefficients = 205.30301070261226
score = 266.9748254924482 * 0.5 + 205.30301070261226 * 0.5 = 236.13891809753022
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-04-06 | 50 -> 89 | 626.94 -> 236.14 | |
| 2021-02-01 | 83 -> 50 | 258.12 -> 626.94 | |
| 2020-02-01 | 83 | 258.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 736 |
|
24/88 | 57% | 3.25 | ONLINE | Winter Team Fight | Russia |
| 2 | 126 |
|
91/104 | 14% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia |
| 3 | 636 |
|
37/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia |
| 4 | 527 |
|
27/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia |
| 5 | 681 |
|
44/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia |
| 6 | 537 |
|
58/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia |
| 7 | 720 |
|
41/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |
| 8 | 150 |
|
35/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament | Russia |
| 9 | 578 |
|
36/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup | Russia |