Daniel Altmaier def. Ben Shelton 4-6, 7(7)-6(4), 6-4 — Hamburg Open 2026 R16

Match recap

Daniel Altmaier defeated Ben Shelton 4-6, 7(7)-6(4), 6-4 in the R16 of the Hamburg Open 2026.

Daniel Altmaier, ranked No. 64, knocked out world No. 6 Ben Shelton 4-6, 7-6(4), 6-4 in their first meeting, flipping the gap behind the second serve and a flood of free Shelton mistakes. The American piled up 43 unforced errors to Altmaier's 24, and despite saving eight of 11 break points, dropped serve at 5-4 in the third. Altmaier won 71% of his first-serve points and converted three of 11 break chances to close out the upset in nearly four hours.

Match stats

Daniel Altmaier: 3 aces, 34 winners, 56% first serves, 2 double faults, 3/11 break points. Ben Shelton: 6 aces, 47 winners, 75% first serves, 1 double fault, 3/8 break points.

Profiles: Daniel Altmaier · Ben Shelton — Hamburg Open 2026

Head-to-head

This is the first meeting between Daniel Altmaier and Ben Shelton.