Dergunov Aleksey
From Moscow, Russia
Internal rating (RR)
Rating date July 3, 2025 (latest changes July 3, 2025).
14 place (715.09).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (214.95 * 4 * 0.14 + 960.78 * 3.05 * 0.71 + 260.87 * 2.10 * 0.71 + 747.66 * 4.60 * 0.86 + 744.68 * 2.80 * 1 + 797.47 * 3.65 * 1 + 673.68 * 3.85 * 1 + 573.03 * 3.75 * 1 + 380.95 * 2.60 * 1 + 542.37 * 3.25 * 1 + 985.71 * 3.50 * 1 + 733.33 * 2 * 1 + 552.24 * 4.10 * 1) / (4 * 0.14 + 3.05 * 0.71 + 2.10 * 0.71 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 2.60 * 1 + 3.25 * 1 + 3.50 * 1 + 2 * 1 + 4.10 * 1) = 669.2933325250468
p2 = (985.71 * 3.50 * 1 + 747.66 * 4.60 * 0.86 + 797.47 * 3.65 * 1 + 673.68 * 3.85 * 1) / max_coefficients = 760.8821006146014
score = 669.2933325250468 * 0.5 + 760.8821006146014 * 0.5 = 715.0877165698241
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-03 | 15 -> 14 | 711.70 -> 715.09 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 10 -> 15 | 718.76 -> 711.70 |
13 bloody tiles: 0% -> 100% |
| 2025-06-11 | 10 | 726.32 -> 718.76 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-08 | 12 -> 10 | 713.54 -> 726.32 |
Random not fault: 0% -> 100% |
| 2025-05-30 | 13 -> 12 | 711.95 -> 713.54 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-12 | 13 | 712.17 -> 711.95 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 13 | 714.03 -> 712.17 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 23 -> 13 | 663.46 -> 714.03 |
Riichi over The Volga 2025: 0% -> 100% SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-26 | 22 -> 23 | 663.46 | |
| 2025-04-11 | 22 | 660.75 -> 663.46 |
Money can not buy tenpai: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 552 |
|
31/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm |
| 2 | 733 |
|
5/16 | 100% | 2.00 | RR | Random not fault | Moscow |
| 3 | 986 |
|
2/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
| 4 | 542 |
|
28/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
| 5 | 412 |
|
31/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow |
| 6 | 381 |
|
27/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
| 7 | 573 |
|
39/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
| 8 | 674 |
|
32/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 9 | 797 |
|
17/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |
| 10 | 745 |
|
13/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
| 11 | 176 |
|
43/52 | 86% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow |
| 12 | 748 |
|
28/108 | 86% | 4.60 | RR | X Russian Championship | Perm |
| 13 | 261 |
|
35/47 | 71% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 14 | 961 |
|
3/52 | 71% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 15 | 215 |
|
85/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |
| 16 | 253 |
|
66/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |
| 17 | 486 |
|
58/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |
| 18 | 612 |
|
27/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm |
| 19 | 511 |
|
24/48 | 0% | 3.10 | RR | Agari team tournament | Moscow |