Timofeev Valentin
From Novosibirsk, Russia
EMA: 15020017
Internal rating (RR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
177 place (192.68).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (1000 * 2.10 * 0.43 + 371.43 * 1.90 * 1 + 0 + 0 + 0) / (2.10 * 0.43 + 1.90 * 1 + 1 + 1 + 1) = 276.8540325444909
p2 = (1000 * 2.10 * 0.43 + 371.43 * 1.90 * 1) / max_coefficients = 108.49797297297296
score = 276.8540325444909 * 0.5 + 108.49797297297296 * 0.5 = 192.67600275873193
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-04 | 180 -> 177 | 192.68 | |
| 2025-09-30 | 168 -> 180 | 220.58 -> 192.68 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-10 | 169 -> 168 | 220.58 | |
| 2025-09-03 | 169 | 237.59 -> 220.58 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 169 | 235.86 -> 237.59 | |
| 2025-08-31 | 167 -> 169 | 235.86 | |
| 2025-08-04 | 170 -> 167 | 235.23 -> 235.86 | |
| 2025-08-03 | 163 -> 170 | 235.23 | |
| 2025-07-30 | 148 -> 163 | 261.50 -> 235.23 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-13 | 145 -> 148 | 261.50 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 371 |
|
23/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 2 | 1000 |
|
🥇 | 1/47 | 43% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 3 | 75 |
|
100/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 4 | 30 |
|
66/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 5 | 105 |
|
18/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 6 | 587 |
|
27/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 7 | 819 |
|
16/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 8 | 11 |
|
91/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 9 | 226 |
|
25/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk | |
| 10 | 478 |
|
13/24 | 0% | 2.20 | EMA | Siberia Cup 2017 | Novosibirsk | |
| 11 | 486 |
|
19/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 12 | 67 |
|
15/16 | 0% | 1.60 | RR | "Legendary player" riichi mahjong tournament 2016 | Tyumen | |
| 13 | 935 |
|
🥉 | 3/32 | 0% | 2.40 | RR | Siberia Cup 2016 | Novosibirsk |
| 14 | 698 |
|
14/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 15 | 429 |
|
21/36 | 0% | 1.70 | RR | Seventh winter tournament | Novosibirsk | |
| 16 | 32 |
|
31/32 | 0% | 2.00 | RR | Riichi tournament 2013 | Novosibirsk |