Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

Rating date Feb. 1, 2020 (latest changes Feb. 1, 2020).

102 place (417.17).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.85 * 1 + 3.45 * 1) = 15.55

p1 = (1000 * 1.40 * 0.43 + 434.78 * 2.50 * 1 + 710.84 * 4.20 * 1 + 259.26 * 2.60 * 1 + 0) / (1.40 * 0.43 + 2.50 * 1 + 4.20 * 1 + 2.60 * 1 + 1) = 490.5128788518207

p2 = (710.84 * 4.20 * 1 + 434.78 * 2.50 * 1 + 259.26 * 2.60 * 1 + 1000 * 1.40 * 0.43) / max_coefficients = 343.83344051446943

score = 490.5128788518207 * 0.5 + 343.83344051446943 * 0.5 = 417.17315968314506

Rating changes

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all results
Date Place Points Reason
2020-02-01 102 417.17

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 259 2019-09-08 21/28 100% 2.60 RR And yet the sinner collects tanyao
2 711 2019-05-04 25/84 100% 4.20 EMA Haru Shanten 2019
3 435 2019-03-09 14/24 100% 2.50 RR Toi-Toi-man Tournament
4 1000 2018-07-28 1/24 43% 1.40 RR Seven ryanmens