Dergunov Aleksey
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Oct. 19, 2023 (latest changes Oct. 19, 2023).
104 place (300.39).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (510.64 * 3.10 * 0.14 + 611.94 * 3.50 * 0.43 + 486.49 * 4.05 * 0.57 + 252.87 * 3.75 * 1 + 214.95 * 4 * 1) / (3.10 * 0.14 + 3.50 * 0.43 + 4.05 * 0.57 + 3.75 * 1 + 4 * 1) = 339.6345211147256
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 = 339.6345211147256 * 0.5 + 261.14372881355933 * 0.5 = 300.38912496414247
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-10-19 | 104 | 303.43 -> 300.39 |
Agari team tournament: 29% -> 14% |
| 2023-10-12 | 104 | 315.22 -> 303.43 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 105 -> 104 | 315.22 | |
| 2023-09-20 | 99 -> 105 | 330.33 -> 315.22 |
Tenpai can't buy happiness: 57% -> 43% |
| 2023-09-09 | 100 -> 99 | 330.33 | |
| 2023-09-03 | 78 -> 100 | 339.23 -> 330.33 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 77 -> 78 | 339.23 | |
| 2023-08-19 | 73 -> 77 | 350.09 -> 339.23 |
Agari team tournament: 43% -> 29% |
| 2023-08-12 | 75 -> 73 | 356.10 -> 350.09 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-20 | 71 -> 75 | 371.41 -> 356.10 |
Tenpai can't buy happiness: 71% -> 57% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 215 |
|
85/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 253 |
|
66/88 | 100% | 3.75 | RR | Money can not buy tenpai |
| 3 | 486 |
|
58/112 | 57% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 612 |
|
27/68 | 43% | 3.50 | RR | Tenpai can't buy happiness |
| 5 | 511 |
|
24/48 | 14% | 3.10 | RR | Agari team tournament |