Daniel Altmaier faces Jiri Lehecka in the Basel round of 16 on hard. Jiri Lehecka holds the paper edge — ranked #21, leading the head-to-head 1–0, defending last year's round of 32.
Altmaier D. and Lehecka J. faced 8 of the same opponents in the last 12 months. Altmaier D. went 2–8 (20%) against them, Lehecka J. 6–3 (67%). Lehecka J. came out clearly better against 5 of 8 comparable opponents, Altmaier D. against 1 — though 1 of those edges carries caveats (retirement).
Umpiry, "Daniel Altmaier vs Jiri Lehecka — Basel Round of 16", https://umpiry.com/match/2026-10-29/altmaier-vs-lehecka-basel-r16?utm_source=cite (as of 29 October 2026).