Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date July 20, 2023 (latest changes July 20, 2023).
75 place (353.45).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255
p1 = (358.21 * 3.50 * 0.57 + 440 * 4.20 * 1 + 540.23 * 3.75 * 1 + 0 + 0) / (3.50 * 0.57 + 4.20 * 1 + 3.75 * 1 + 1 + 1) = 384.1237165164562
p2 = (540.23 * 3.75 * 1 + 440 * 4.20 * 1 + 358.21 * 3.50 * 0.57) / max_coefficients = 322.7732010993404
score = 384.1237165164562 * 0.5 + 322.7732010993404 * 0.5 = 353.4484588078983
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-07-20 | 75 | 359.23 -> 353.45 |
Tenpai can't buy happiness: 71% -> 57% |
2023-07-03 | 76 -> 75 | 359.23 | |
2023-06-12 | 77 -> 76 | 352.67 -> 359.23 | |
2023-06-11 | 105 -> 77 | 242.66 -> 352.67 |
Money can not buy tenpai: 0% -> 100% |
2023-05-28 | 106 -> 105 | 242.66 | |
2023-05-20 | 106 | 247.27 -> 242.66 |
Tenpai can't buy happiness: 86% -> 71% |
2023-05-06 | 108 -> 106 | 247.27 | |
2023-05-05 | 109 -> 108 | 247.27 | |
2023-05-01 | 107 -> 109 | 247.27 | |
2023-04-22 | 103 -> 107 | 247.27 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 540 |
|
41/88 | 100% | 3.75 | RR | Money can not buy tenpai |
2 | 440 |
|
43/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
3 | 358 |
|
44/68 | 57% | 3.50 | RR | Tenpai can't buy happiness |
4 | 984 |
|
2/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
5 | 455 |
|
7/12 | 0% | 1.50 | CRR | Perm Half Marathon |
6 | 174 |
|
20/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
7 | 84 |
|
77/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
8 | 473 |
|
30/56 | 0% | 3.00 | EMA | Snow Dragon |
9 | 363 |
|
59/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
10 | 704 |
|
9/28 | 0% | 1.70 | RR | Natsu Shanten 2018 |
11 | 479 |
|
38/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
12 | 789 |
|
5/20 | 0% | 2.10 | CRR | Spring tournament (Ekaterinburg) |
13 | 789 |
|
5/20 | 0% | 2.10 | CRR | Guard of the tenpai |
14 | 366 |
|
46/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
15 | 261 |
|
18/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 |
16 | 741 |
|
8/28 | 0% | 2.10 | RR | Tyumen Mahjong Tournament (TMT) 2017 |
17 | 111 |
|
25/28 | 0% | 1.50 | RR | "Spring shanten" tournament, Perm 2017 |
18 | 696 |
|
8/24 | 0% | 2.20 | RR | The first tournament of 2017 |
19 | 543 |
|
17/36 | 0% | 2.50 | RR | Quick discard 2017 |
20 | 600 |
|
7/16 | 0% | 1.60 | RR | "Legendary player" riichi mahjong tournament 2016 |
21 | 484 |
|
17/32 | 0% | 2.40 | RR | Siberia Cup 2016 |
22 | 384 |
|
62/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 |
23 | 947 |
|
2/20 | 0% | 1.70 | RR | "Tiles, doras, 2 renchans" |
24 | 478 |
|
13/24 | 0% | 1.80 | RR | 4 riichi mahjong tournament 2015 |
25 | 667 |
|
18/52 | 0% | 2.90 | EMA | Russian Open Riichi Championship 2015 |
26 | 421 |
|
12/20 | 0% | 1.70 | RR | Plitochka |
27 | 1000 |
|
1/16 | 0% | 1.60 | RR | 3 riichi mahjong tournament 2015 |
28 | 333 |
|
11/16 | 0% | 1.60 | RR | 2 autumn riichi mahjong tournament 2015 |
29 | 889 |
|
4/28 | 0% | 1.90 | RR | 2 winter riichi mahjong tournament 2015 |
30 | 895 |
|
3/20 | 0% | 1.30 | RR | Autumn riichi mahjong tournament 2014 |
31 | 158 |
|
17/20 | 0% | 1.30 | RR | Chelyabinsk riichi mahjong championship 2017 |