Head-to-Head
Overview
Chikaraishi/ Negishi and Kosaka/ Uemura have met 1 time so far, all in 2026. Chikaraishi/ Negishi leads 1–0. Their first encounter was at the 2026 W15 Sapporo 2 (R16), won by Chikaraishi/ Negishi.
By surface
- hard1 – 0
Chikaraishi/ Negishi and Kosaka/ Uemura have met 1 time so far, all in 2026. Chikaraishi/ Negishi leads 1–0. Their first encounter was at the 2026 W15 Sapporo 2 (R16), won by Chikaraishi/ Negishi.