Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Common russian riichi rating (CRR)

Rating date Nov. 9, 2023 (latest changes Nov. 9, 2023).

35 place (499.24).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002

p1 = (358.21 * 3.50 * 0.43 + 440 * 4.20 * 0.86 + 540.23 * 3.75 * 1 + 631.58 * 2.10 * 1 + 703.70 * 2.30 * 1) / (3.50 * 0.43 + 4.20 * 0.86 + 3.75 * 1 + 2.10 * 1 + 2.30 * 1) = 535.2462505433995

p2 = (540.23 * 3.75 * 1 + 703.70 * 2.30 * 1 + 440 * 4.20 * 0.86 + 631.58 * 2.10 * 1) / max_coefficients = 463.2299209459908

score = 535.2462505433995 * 0.5 + 463.2299209459908 * 0.5 = 499.2380857446951

Rating changes

Show

all results
Date Place Points Reason
2023-11-06 54 -> 35 390.54 -> 499.24

IX Russian Riichi Championship: 100% -> 86%
2021-02-01 67 -> 54 496.26 -> 390.54
2020-02-01 67 496.26

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 704 2023-11-05 9/28 100% 2.30 CRR Finding Dora Yekaterinburg
2 632 2023-08-27 8/20 100% 2.10 CRR 13 tiles until tempai Yekaterinburg
3 540 2023-06-11 41/88 100% 3.75 RR Money can not buy tenpai Perm
4 440 2022-11-06 43/76 86% 4.20 RR IX Russian Riichi Championship Perm
5 358 2022-03-20 44/68 43% 3.50 RR Tenpai can't buy happiness Perm
6 984 2019-11-04 🥈 2/64 0% 3.85 EMA Aki Shanten 2019 Perm
7 455 2019-07-06 7/12 0% 1.50 CRR Perm Half Marathon Perm
8 174 2019-06-16 20/24 0% 2.20 RR URAL Mahjong Battle Yekaterinburg
9 84 2019-05-04 77/84 0% 4.20 EMA Haru Shanten 2019 Perm
10 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon Novosibirsk
11 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
12 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018 Perm
13 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018 Perm
14 789 2018-03-18 5/20 0% 2.10 CRR Spring tournament (Ekaterinburg) Yekaterinburg
15 789 2018-02-24 5/20 0% 2.10 CRR Guard of the tenpai Tyumen
16 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
17 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg
18 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017 Tyumen
19 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017 Perm
20 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017 Yekaterinburg
21 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017 Novosibirsk
22 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016 Tyumen
23 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016 Novosibirsk
24 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
25 947 2016-02-07 🥈 2/20 0% 1.70 RR "Tiles, doras, 2 renchans" Tyumen
26 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015 Yekaterinburg
27 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015 Vologda
28 421 2015-09-27 12/20 0% 1.70 RR Plitochka Tyumen
29 1000 2015-08-29 🥇 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015 Yekaterinburg
30 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015 Yekaterinburg
31 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015 Yekaterinburg
32 895 2014-10-25 🥉 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014 Yekaterinburg
33 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017 Chelyabinsk