Dergunov Aleksey
From Moscow, Russia
Internal rating (RR)
Rating date Oct. 13, 2025 (latest changes Oct. 13, 2025).
20 place (687.05).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
p1 = (960.78 * 3.05 * 0.43 + 260.87 * 2.10 * 0.43 + 747.66 * 4.60 * 0.57 + 744.68 * 2.80 * 0.71 + 797.47 * 3.65 * 0.71 + 673.68 * 3.85 * 0.86 + 573.03 * 3.75 * 0.86 + 380.95 * 2.60 * 1 + 411.76 * 3.05 * 1 + 542.37 * 3.25 * 1 + 985.71 * 3.50 * 1 + 733.33 * 2 * 1 + 552.24 * 4.10 * 1 + 833.33 * 2.45 * 1 + 744.19 * 3 * 1) / (3.05 * 0.43 + 2.10 * 0.43 + 4.60 * 0.57 + 2.80 * 0.71 + 3.65 * 0.71 + 3.85 * 0.86 + 3.75 * 0.86 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 2 * 1 + 4.10 * 1 + 2.45 * 1 + 3 * 1) = 665.3860200955096
p2 = (985.71 * 3.50 * 1 + 552.24 * 4.10 * 1 + 744.19 * 3 * 1 + 673.68 * 3.85 * 0.86) / max_coefficients = 708.7043161123456
score = 665.3860200955096 * 0.5 + 708.7043161123456 * 0.5 = 687.0451681039276
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-13 | 21 -> 20 | 675.66 -> 687.05 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-04 | 21 | 685.68 -> 675.66 |
Riichi over Volga: 86% -> 71% |
| 2025-09-30 | 21 | 684.21 -> 685.68 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-14 | 21 | 684.61 -> 684.21 |
Guardian of the Winds: 86% -> 71% |
| 2025-09-12 | 22 -> 21 | 692.83 -> 684.61 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 23 -> 22 | 694.33 -> 692.83 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-03 | 23 | 691.35 -> 694.33 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 21 -> 23 | 692.78 -> 691.35 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 14 -> 21 | 702.13 -> 692.78 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 15 -> 14 | 702.13 |
Agari Summer Tournament 2024: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 390 |
|
48/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 744 |
|
12/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 3 | 833 |
|
6/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 4 | 552 |
|
31/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 5 | 733 |
|
5/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 6 | 986 |
|
🥈 | 2/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
| 7 | 542 |
|
28/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 8 | 412 |
|
31/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 9 | 381 |
|
27/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 10 | 573 |
|
39/90 | 86% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 11 | 674 |
|
32/96 | 86% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 12 | 797 |
|
17/80 | 71% | 3.65 | RR | Riichi over Volga | Samara | |
| 13 | 745 |
|
13/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 14 | 176 |
|
43/52 | 57% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 15 | 748 |
|
28/108 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 16 | 261 |
|
35/47 | 43% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 17 | 961 |
|
🥉 | 3/52 | 43% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 18 | 215 |
|
85/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 19 | 253 |
|
66/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 20 | 486 |
|
58/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 21 | 612 |
|
27/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 22 | 511 |
|
24/48 | 0% | 3.10 | RR | Agari team tournament | Moscow |