Head-to-Head
Overview
Fukuda/ Masabayashi and Koyama/ Suzuki have met 1 time so far, all in 2026. Fukuda/ Masabayashi leads 1–0. Their first encounter was at the 2026 M15 Karuizawa (R16), won by Fukuda/ Masabayashi.
By surface
- clay1 – 0
Fukuda/ Masabayashi and Koyama/ Suzuki have met 1 time so far, all in 2026. Fukuda/ Masabayashi leads 1–0. Their first encounter was at the 2026 M15 Karuizawa (R16), won by Fukuda/ Masabayashi.