Ivshin Sergei
From Kirov, Russia
EMA: 15990412
Common russian riichi rating (CRR)
Rating date March 14, 2024 (latest changes March 14, 2024).
181 place (40.03).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (200 * 1.20 * 0.29 + 343.28 * 3.50 * 0.14 + 0 + 0 + 0) / (1.20 * 0.29 + 3.50 * 0.14 + 1 + 1 + 1) = 62.51902815255829
p2 = (343.28 * 3.50 * 0.14 + 200 * 1.20 * 0.29) / max_coefficients = 17.537226277372262
score = 62.51902815255829 * 0.5 + 17.537226277372262 * 0.5 = 40.02812721496528
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-10 | 178 -> 181 | 40.46 -> 40.03 | |
| 2024-03-09 | 179 -> 178 | 40.46 | |
| 2024-03-06 | 179 | 40.06 -> 40.46 | |
| 2024-03-03 | 179 | 44.25 -> 40.06 |
Vyatka rooster: 43% -> 29% |
| 2024-02-25 | 177 -> 179 | 44.25 | |
| 2024-01-20 | 174 -> 177 | 65.75 -> 44.25 |
Tenpai can't buy happiness: 29% -> 14% |
| 2024-01-06 | 174 | 65.07 -> 65.75 | |
| 2024-01-03 | 173 -> 174 | 68.12 -> 65.07 |
Vyatka rooster: 57% -> 43% |
| 2023-12-19 | 184 -> 173 | 68.12 | |
| 2023-12-18 | 185 -> 184 | 68.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 200 |
|
13/16 | 29% | 1.20 | CRR | Vyatka rooster |
| 2 | 343 |
|
45/68 | 14% | 3.50 | RR | Tenpai can't buy happiness |
| 3 | 600 |
|
23/56 | 0% | 3.30 | RR | Kirov Tournament |
| 4 | 667 |
|
14/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai |
| 5 | 259 |
|
21/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao |
| 6 | 711 |
|
25/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
| 7 | 435 |
|
14/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament |
| 8 | 1000 |
|
1/24 | 0% | 1.40 | RR | Seven ryanmens |