Player dossier
R. Kosaka
JAPAN
Overall: 1,492Hard: 1,484Clay: N/AGrass: N/A
RK
Season record: 1–0Win % 100%
#361Elo
Performance console
Loading Elo history...
Last 10 matches — Global
Total Δ Elo 0.0Loading recent matches...
Elo delta per match
Positive bars = gains • Negative bars = losses
Evaluating Elo deltas...