Dergunov Aleksey
From Moscow, Russia
Internal rating (RR)
Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).
4 place (774.37).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (960.78 * 3.05 * 0.14 + 260.87 * 2.10 * 0.14 + 747.66 * 4.60 * 0.29 + 176.47 * 3.05 * 0.43 + 744.68 * 2.80 * 0.43 + 797.47 * 3.65 * 0.43 + 673.68 * 3.85 * 0.57 + 573.03 * 3.75 * 0.71 + 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 + 964.91 * 3.90 * 1 + 645.16 * 3 * 1 + 927.27 * 3 * 1) / (3.05 * 0.14 + 2.10 * 0.14 + 4.60 * 0.29 + 3.05 * 0.43 + 2.80 * 0.43 + 3.65 * 0.43 + 3.85 * 0.57 + 3.75 * 0.71 + 3.25 * 1 + 3.50 * 1 + 2 * 1 + 4.10 * 1 + 2.45 * 1 + 3 * 1 + 3.90 * 1 + 3 * 1 + 3 * 1) = 728.7369991660794
p2 = (964.91 * 3.90 * 1 + 985.71 * 3.50 * 1 + 927.27 * 3 * 1 + 552.24 * 4.10 * 1) / max_coefficients = 820.0107023411372
score = 728.7369991660794 * 0.5 + 820.0107023411372 * 0.5 = 774.3738507536083
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-02-04 | 4 | 774.82 -> 774.37 |
Riichi over Volga: 57% -> 43% |
| 2026-01-30 | 4 | 773.07 -> 774.82 |
Seihoku spring tournament 2024: 29% -> 14% |
| 2026-01-25 | 8 -> 4 | 735.76 -> 773.07 |
Riichi On Ice 2026: 0% -> 100% |
| 2026-01-14 | 8 | 736.04 -> 735.76 |
Guardian of the Winds: 57% -> 43% |
| 2026-01-12 | 8 | 736.52 -> 736.04 |
X Russian Championship: 43% -> 29% |
| 2026-01-10 | 8 | 737.95 -> 736.52 |
Agari Spring Tournament 2024: 29% -> 14% |
| 2026-01-07 | 10 -> 8 | 737.95 | |
| 2026-01-01 | 10 | 737.83 -> 737.95 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 11 -> 10 | 737.07 -> 737.83 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 12 -> 11 | 735.03 -> 737.07 |
Agari Summer Tournament 2024: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 927 |
|
5/56 | 100% | 3.00 | RR | Riichi On Ice 2026 | Samara | |
| 2 | 645 |
|
12/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 3 | 965 |
|
🥉 | 3/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow |
| 4 | 390 |
|
48/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 5 | 744 |
|
12/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 6 | 833 |
|
6/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 7 | 552 |
|
31/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 8 | 733 |
|
5/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 9 | 986 |
|
🥈 | 2/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
| 10 | 542 |
|
28/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 11 | 412 |
|
31/52 | 86% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 12 | 381 |
|
27/43 | 86% | 2.60 | RR | Riichi On Ice | Samara | |
| 13 | 573 |
|
39/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 14 | 674 |
|
32/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 15 | 797 |
|
17/80 | 43% | 3.65 | RR | Riichi over Volga | Samara | |
| 16 | 745 |
|
13/48 | 43% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 17 | 176 |
|
43/52 | 43% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 18 | 748 |
|
28/108 | 29% | 4.60 | RR | X Russian Championship | Perm | |
| 19 | 261 |
|
35/47 | 14% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 20 | 961 |
|
🥉 | 3/52 | 14% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 21 | 215 |
|
85/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 22 | 253 |
|
66/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 23 | 486 |
|
58/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 24 | 612 |
|
27/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 25 | 511 |
|
24/48 | 0% | 3.10 | RR | Agari team tournament | Moscow |