Borzonogov Vitaly
From Arkhangelsk, Russia
EMA: 15990253
Online rating
Rating date July 14, 2025 (latest changes July 5, 2025).
43 place (390.26).
how we calculated rating score
max_coefficients = (4.45 * 1 + 3.70 * 0.86 + 3.05 * 1) = 10.67127
p1 = (606.06 * 2.20 * 1 + 414.63 * 2.40 * 0.57 + 684.21 * 1.90 * 0.71 + 642.86 * 1.50 * 1 + 492.96 * 3.05 * 1 + 170.73 * 2.40 * 1 + 239.44 * 4.45 * 1) / (2.20 * 1 + 2.40 * 0.57 + 1.90 * 0.71 + 1.50 * 1 + 3.05 * 1 + 2.40 * 1 + 4.45 * 1) = 414.83158618687656
p2 = (492.96 * 3.05 * 1 + 606.06 * 2.20 * 1 + 239.44 * 4.45 * 1) / max_coefficients = 365.6865583946428
score = 414.83158618687656 * 0.5 + 365.6865583946428 * 0.5 = 390.2590722907597
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-05 | 43 | 358.08 -> 390.26 |
Summer online tournament 2025: 0% -> 100% |
| 2025-07-02 | 47 -> 43 | 363.40 -> 358.08 |
Double Tournament with Naga: 14% -> 0% Spring online tournament 2024: 71% -> 57% |
| 2025-06-28 | 44 -> 47 | 373.01 -> 363.40 |
Wrong Chair: 86% -> 71% |
| 2025-06-27 | 17 -> 44 | 441.67 -> 373.01 |
Kawa-league, season 1: 0% -> 100% |
| 2025-06-22 | 18 -> 17 | 441.67 | |
| 2025-06-16 | 18 | 429.67 -> 441.67 | |
| 2025-05-02 | 17 -> 18 | 433.79 -> 429.67 |
Spring online tournament 2024: 86% -> 71% Double Tournament with Naga: 29% -> 14% |
| 2025-04-28 | 17 | 446.34 -> 433.79 |
Wrong Chair: 100% -> 86% |
| 2025-04-05 | 12 -> 17 | 494.10 -> 446.34 |
Spring online tournament 2025: 0% -> 100% |
| 2025-03-02 | 14 -> 12 | 488.92 -> 494.10 |
Double Tournament with Naga: 43% -> 29% Spring online tournament 2024: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 606 |
|
14/34 | 100% | 2.20 | ONLINE | Summer online tournament 2025 | Russia |
| 2 | 239 |
|
55/72 | 100% | 4.45 | ONLINE | Kawa-league, season 1 | Russia |
| 3 | 171 |
|
35/42 | 100% | 2.40 | ONLINE | Spring online tournament 2025 | Russia |
| 4 | 493 |
|
37/72 | 100% | 3.05 | ONLINE | Winter online tournament 2025 | Russia |
| 5 | 643 |
|
6/15 | 100% | 1.50 | ONLINE | IORMC Qualifiers 2024 | Russia |
| 6 | 684 |
|
7/20 | 71% | 1.90 | ONLINE | Wrong Chair | Russia |
| 7 | 415 |
|
25/42 | 57% | 2.40 | ONLINE | Spring online tournament 2024 | Russia |
| 8 | 731 |
|
19/68 | 0% | 3.00 | ONLINE | Double Tournament with Naga | Russia |
| 9 | 764 |
|
14/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia |
| 10 | 957 |
|
3/48 | 0% | 2.60 | ONLINE | Demons of autumn wind | Russia |
| 11 | 851 |
|
14/88 | 0% | 3.25 | ONLINE | Winter Team Fight | Russia |
| 12 | 133 |
|
14/16 | 0% | 1.40 | ONLINE | 北斗 Tournament 3: STAR EATER | Russia |
| 13 | 182 |
|
10/12 | 0% | 1.70 | ONLINE | IORMC Qualifiers 2021 | Russia |
| 14 | 593 |
|
12/28 | 0% | 2.10 | ONLINE | Autumn Online Tournament | Russia |
| 15 | 968 |
|
2/32 | 0% | 2.20 | ONLINE | I wish to have dora san... | Russia |
| 16 | 581 |
|
19/44 | 0% | 2.50 | ONLINE | Summer Online Tournament | Russia |
| 17 | 512 |
|
22/44 | 0% | 2.50 | ONLINE | Demons of spring wind | Russia |
| 18 | 977 |
|
2/44 | 0% | 2.50 | ONLINE | Fast and Expensive | Russia |
| 19 | 348 |
|
16/24 | 0% | 1.60 | ONLINE | NightJongers TAG Tournament | Russia |
| 20 | 456 |
|
57/104 | 0% | 3.45 | ONLINE | Riichi Online Open Team Cup | Russia |
| 21 | 974 |
|
2/40 | 0% | 2.40 | ONLINE | Spring Online Tournament | Russia |
| 22 | 892 |
|
10/84 | 0% | 3.20 | ONLINE | No Dora Tournament | Russia |
| 23 | 516 |
|
16/32 | 0% | 2.85 | ONLINE | 北斗 Tournament 2: RESURRECTION | Russia |
| 24 | 15 |
|
67/68 | 0% | 3.00 | ONLINE | Winter Online Tournament | Russia |
| 25 | 897 |
|
5/40 | 0% | 2.60 | ONLINE | Demons of winter wind | Russia |
| 26 | 778 |
|
23/100 | 0% | 3.40 | ONLINE | Riichi Online Open Team Cup | Russia |
| 27 | 645 |
|
12/32 | 0% | 2.20 | ONLINE | 北斗 Tournament | Russia |
| 28 | 737 |
|
6/20 | 0% | 1.90 | ONLINE | IORMC Qualifiers 2020 | Russia |
| 29 | 36 |
|
54/56 | 0% | 2.80 | ONLINE | Autumn Online Tournament | Russia |
| 30 | 373 |
|
33/52 | 0% | 2.70 | ONLINE | Rainy season tournament［梅雨］ | Russia |
| 31 | 408 |
|
43/72 | 0% | 3.05 | ONLINE | Summer Tournament | Russia |
| 32 | 941 |
|
9/136 | 0% | 3.69 | ONLINE | Riichi Online Open Team Cup | Russia |
| 33 | 822 |
|
20/108 | 0% | 3.50 | ONLINE | Spring tournament | Russia |
| 34 | 81 |
|
114/124 | 0% | 3.06 | ONLINE | Be cool stay home | Russia |
| 35 | 367 |
|
89/140 | 0% | 3.70 | ONLINE | Corona go away | Russia |
| 36 | 979 |
|
4/144 | 0% | 3.71 | ONLINE | Riichi Online Open Team Cup 2020 | Russia |
| 37 | 925 |
|
4/41 | 0% | 2.40 | ONLINE | Autumn Online Tournament | Russia |
| 38 | 818 |
|
11/56 | 0% | 2.80 | ONLINE | Summer Online Tournament | Russia |
| 39 | 120 |
|
74/84 | 0% | 3.20 | ONLINE | Riichi Online Open Team Cup | Russia |
| 40 | 175 |
|
53/64 | 0% | 2.95 | ONLINE | Winter Online Tournament | Russia |
| 41 | 288 |
|
43/60 | 0% | 2.90 | ONLINE | Ryan Pin Online Tournament | Russia |
| 42 | 462 |
|
22/40 | 0% | 2.40 | ONLINE | Autumn online tournament 2018 | Russia |
| 43 | 102 |
|
54/60 | 0% | 2.90 | ONLINE | Summer online tournament 2018 | Russia |
| 44 | 588 |
|
22/52 | 0% | 2.70 | ONLINE | Spring online tournament 2018 | Russia |
| 45 | 364 |
|
8/12 | 0% | 1.10 | ONLINE | Winter riichi-blitz 2018 | Russia |
| 46 | 1000 |
|
1/44 | 0% | 2.30 | ONLINE | Winter online tournament 2018 | Russia |
| 47 | 111 |
|
25/28 | 0% | 1.70 | ONLINE | IORMC Qualifiers 2017 | Russia |
| 48 | 419 |
|
26/44 | 0% | 1.90 | ONLINE | Summer riichi-blitz 2017 | Russia |
| 49 | 581 |
|
19/44 | 0% | 1.90 | ONLINE | Spring riichi-blitz 2017 | Russia |
| 50 | 128 |
|
42/48 | 0% | 2.00 | ONLINE | Winter riichi-blitz 2017 | Russia |