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Sebastian Onderka
- País
- Chequia
- Temporada 2026
- 8–8
Últimos partidos
| Fecha | Torneo | Ronda | Rival | Resultado | Final |
|---|
| 2026-09-21 | Frydek Mistek | Q2 | Rafael Koc | 6-4 6-0 | victoria |
| 2026-09-21 | Frydek Mistek | Group E | Matej Novak | 3-6 0-6 | derrota |
| 2026-09-21 | Frydek Mistek | Group E | Alan Molodecki | 6-4 6-3 | victoria |
| 2026-09-21 | Frydek Mistek | Group E | Jonas Rousek | 6-7 6-2 1-10 | derrota |
| 2026-08-24 | Humenne | Q1 | Simone Catani | | victoria |
| 2026-08-24 | Humenne | Q2 | Peter Danko | 3-6 6-3 7-10 | derrota |
| 2026-08-24 | Humenne | R1 | Dominik Hradilek | 7-6 6-2 | victoria |
| 2026-08-24 | Humenne | R2 | Tobias Horsky | 4-6 6-7 | derrota |
| 2026-08-04 | Slovenska Lupca | Q2 | Oleh Leshchukh | 6-1 6-3 | victoria |
| 2026-08-04 | Slovenska Lupca | QF | Alexej Buba | 6-4 4-6 8-10 | derrota |
| 2026-06-30 | Stara Boleslav | Q1 | Karel Blaha | 6-1 6-3 | victoria |
| 2026-06-30 | Stara Boleslav | Q2 | Linus Andersson | 4-6 4-6 | derrota |
| 2026-04-06 | Vienna | Q1 | Matteo Fath | 4-6 6-1 12-10 | victoria |
| 2026-04-06 | Vienna | Q2 | Lasse Boysen | 3-6 6-1 10-8 | victoria |
| 2026-04-06 | Vienna | Q3 | PAUL GHIMBASAN | 2-6 4-6 | derrota |
| 2026-03-16 | Prague | Q1 | Kevin Schnell | 5-7 6-7 | derrota |
| 2025-11-12 | Pszczyna | Q1 | Piotr Kowalik | 6-3 2-6 10-7 | victoria |
| 2025-11-12 | Pszczyna | Q2 | Gautam S Venkatraman | 2-6 1-6 | derrota |
| 2025-09-22 | Frydek Mistek | R1 | Dominik Guzmicky | 1-6 0-6 | derrota |