Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Internal rating (RR)
Rating date May 28, 2023 (latest changes May 28, 2023).
80 place (250.97).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.10 * 0.57) = 12.52139
p1 = (358.21 * 3.50 * 0.71 + 440 * 4.20 * 1 + 0 + 0 + 0) / (3.50 * 0.71 + 4.20 * 1 + 1 + 1 + 1) = 282.83771733135393
p2 = (440 * 4.20 * 1 + 358.21 * 3.50 * 0.71) / max_coefficients = 219.10826194216457
score = 282.83771733135393 * 0.5 + 219.10826194216457 * 0.5 = 250.97298963675925
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-05-28 | 81 -> 80 | 249.25 -> 250.97 | |
2023-05-20 | 81 | 253.79 -> 249.25 |
Tenpai can't buy happiness: 86% -> 71% |
2023-05-06 | 82 -> 81 | 253.79 | |
2023-04-19 | 83 -> 82 | 251.80 -> 253.79 | |
2023-03-28 | 83 | 249.82 -> 251.80 | |
2023-03-20 | 82 -> 83 | 254.05 -> 249.82 |
Tenpai can't buy happiness: 100% -> 86% |
2023-02-19 | 82 | 252.59 -> 254.05 | |
2023-01-28 | 82 | 250.39 -> 252.59 | |
2023-01-06 | 83 -> 82 | 250.39 | |
2022-12-19 | 83 | 249.38 -> 250.39 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 440 |
|
43/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
2 | 358 |
|
44/68 | 71% | 3.50 | RR | Tenpai can't buy happiness |
3 | 984 |
|
2/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
4 | 174 |
|
20/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
5 | 84 |
|
77/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
6 | 473 |
|
30/56 | 0% | 3.00 | EMA | Snow Dragon |
7 | 363 |
|
59/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
8 | 704 |
|
9/28 | 0% | 1.70 | RR | Natsu Shanten 2018 |
9 | 479 |
|
38/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
10 | 366 |
|
46/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
11 | 261 |
|
18/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 |
12 | 741 |
|
8/28 | 0% | 2.10 | RR | Tyumen Mahjong Tournament (TMT) 2017 |
13 | 111 |
|
25/28 | 0% | 1.50 | RR | "Spring shanten" tournament, Perm 2017 |
14 | 696 |
|
8/24 | 0% | 2.20 | RR | The first tournament of 2017 |
15 | 543 |
|
17/36 | 0% | 2.50 | RR | Quick discard 2017 |
16 | 600 |
|
7/16 | 0% | 1.60 | RR | "Legendary player" riichi mahjong tournament 2016 |
17 | 484 |
|
17/32 | 0% | 2.40 | RR | Siberia Cup 2016 |
18 | 384 |
|
62/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
19 | 947 |
|
2/20 | 0% | 1.70 | RR | "Tiles, doras, 2 renchans" |
20 | 478 |
|
13/24 | 0% | 1.80 | RR | 4 riichi mahjong tournament 2015 |
21 | 667 |
|
18/52 | 0% | 2.90 | EMA | Russian Open Riichi Championship 2015 |
22 | 421 |
|
12/20 | 0% | 1.70 | RR | Plitochka |
23 | 1000 |
|
1/16 | 0% | 1.60 | RR | 3 riichi mahjong tournament 2015 |
24 | 333 |
|
11/16 | 0% | 1.60 | RR | 2 autumn riichi mahjong tournament 2015 |
25 | 889 |
|
4/28 | 0% | 1.90 | RR | 2 winter riichi mahjong tournament 2015 |
26 | 895 |
|
3/20 | 0% | 1.30 | RR | Autumn riichi mahjong tournament 2014 |
27 | 158 |
|
17/20 | 0% | 1.30 | RR | Chelyabinsk riichi mahjong championship 2017 |