Yumiko Oishi is not currently ranked in the RMT ranking. Yumiko has run 5 scored trail races. The best scoring result she achieved is several hundred RMT points on a course of ⨦ 162.5 km and + 5 200 m vertical during Tarawera Ultramarathon in 2020. She recently participated in Tarawera Ultramarathon 2020 and scored a lot of RMT points.