Head-to-Head
Overview
Jamie Mackenzie and Jan Kumstat have met 1 time so far, all in 2026. Jan Kumstat leads 1–0. Their first encounter was at the 2026 Hamburg (R32), won by Jan Kumstat.
By surface
- clay0 – 1
Jamie Mackenzie and Jan Kumstat have met 1 time so far, all in 2026. Jan Kumstat leads 1–0. Their first encounter was at the 2026 Hamburg (R32), won by Jan Kumstat.