Dergunov Aleksey
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Aug. 11, 2024 (latest changes Aug. 11, 2024).
10 place (701.38).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.65 * 1 + 3.05 * 1) = 15.3
p1 = (863.64 * 2.10 * 1 + 960.78 * 3.05 * 1 + 252.87 * 3.75 * 0.71 + 769.23 * 2.90 * 1 + 260.87 * 2.10 * 1 + 747.66 * 4.60 * 1 + 548.39 * 1.80 * 1 + 1000 * 1.50 * 1 + 176.47 * 3.05 * 1 + 744.68 * 2.80 * 1 + 797.47 * 3.65 * 1) / (2.10 * 1 + 3.05 * 1 + 3.75 * 0.71 + 2.90 * 1 + 2.10 * 1 + 4.60 * 1 + 1.80 * 1 + 1.50 * 1 + 3.05 * 1 + 2.80 * 1 + 3.65 * 1) = 650.3914749678493
p2 = (747.66 * 4.60 * 1 + 960.78 * 3.05 * 1 + 797.47 * 3.65 * 1 + 769.23 * 2.90 * 1) / max_coefficients = 752.3640522875817
score = 650.3914749678493 * 0.5 + 752.3640522875817 * 0.5 = 701.3777636277155
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-08-11 | 12 -> 10 | 693.93 -> 701.38 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 19 -> 12 | 670.81 -> 693.93 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 19 | 654.66 -> 670.81 |
Guardian of the Winds: 0% -> 100% |
| 2024-06-11 | 21 -> 19 | 637.33 -> 654.66 |
Money can not buy tenpai: 100% -> 86% |
| 2024-06-09 | 16 -> 21 | 666.08 -> 637.33 |
Agari Summer Tournament 2024: 0% -> 100% |
| 2024-05-25 | 21 -> 16 | 620.26 -> 666.08 |
Duplicate riichi mahjong tournament 2024: 0% -> 100% |
| 2024-05-19 | 21 | 620.88 -> 620.26 |
"Green Dragon" in the Secret Chamber: 0% -> 100% |
| 2024-05-12 | 32 -> 21 | 549.25 -> 620.88 |
X Russian Championship: 0% -> 100% |
| 2024-05-06 | 33 -> 32 | 549.25 | |
| 2024-04-12 | 34 -> 33 | 548.74 -> 549.25 |
Moscow Riichi 2022: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 797 |
|
17/80 | 100% | 3.65 | RR | Riichi over Volga |
| 2 | 745 |
|
13/48 | 100% | 2.80 | RR | Guardian of the Winds |
| 3 | 176 |
|
43/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 4 | 1000 |
|
1/20 | 100% | 1.50 | CRR | Duplicate riichi mahjong tournament 2024 |
| 5 | 548 |
|
15/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
| 6 | 748 |
|
28/108 | 100% | 4.60 | RR | X Russian Championship |
| 7 | 261 |
|
35/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 8 | 961 |
|
3/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
| 9 | 769 |
|
10/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
| 10 | 864 |
|
4/23 | 100% | 2.10 | CRR | Mushroom League |
| 11 | 215 |
|
85/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 12 | 253 |
|
66/88 | 71% | 3.75 | RR | Money can not buy tenpai |
| 13 | 486 |
|
58/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |
| 14 | 612 |
|
27/68 | 0% | 3.50 | RR | Tenpai can't buy happiness |
| 15 | 511 |
|
24/48 | 0% | 3.10 | RR | Agari team tournament |