Head-to-Head
Overview
R. Saigo and H. Kaji have met 1 time so far, all in 2026. H. Kaji leads 1–0. Their first encounter was at the 2026 W100 Takasaki, won by H. Kaji.
By surface
- hard0 – 1
R. Saigo and H. Kaji have met 1 time so far, all in 2026. H. Kaji leads 1–0. Their first encounter was at the 2026 W100 Takasaki, won by H. Kaji.