Ionov Roman

From Samara, Russia

Player page

Internal rating (RR)

Rating date Nov. 6, 2026 (latest changes Nov. 4, 2026).

77 place (505.30).

max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91

p1 = (727.27 * 3 * 1 + 874.13 * 4.71 * 1 + 0 + 0 + 0) / (3 * 1 + 4.71 * 1 + 1 + 1 + 1) = 588.1372549019608

p2 = (874.13 * 4.71 * 1 + 727.27 * 3 * 1) / max_coefficients = 422.4647887323944

score = 588.1372549019608 * 0.5 + 422.4647887323944 * 0.5 = 505.30102181717757

Rating changes

Show

all results
Date Place Points Reason
2026-11-04 77 498.45 -> 505.30
2026-10-31 76 -> 77 498.45
2026-10-16 77 -> 76 498.45
2026-10-13 78 -> 77 498.45
2026-09-07 79 -> 78 498.45
2026-09-06 76 -> 79 498.45
2026-09-03 77 -> 76 498.45
2026-09-02 78 -> 77 498.45
2026-08-31 81 -> 78 497.79 -> 498.45
2026-08-27 82 -> 81 497.79

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 874 2026-06-14 19/144 100% 4.71 RR XII Russian Championship Samara
2 727 2026-01-25 16/56 100% 3.00 RR Riichi On Ice 2026 Samara