Head-to-Head
Overview
T. Kostovic and Jule Niemeier have met 1 time so far, all in 2026. T. Kostovic leads 1–0. Their first encounter was at the 2026 W100 Aschaffenburg (Germany) (R16), won by T. Kostovic.
By surface
- clay1 – 0
T. Kostovic and Jule Niemeier have met 1 time so far, all in 2026. T. Kostovic leads 1–0. Their first encounter was at the 2026 W100 Aschaffenburg (Germany) (R16), won by T. Kostovic.