Sergiu Alexandru ONICA

01/112026 Szabolcsveresmart, Hungary TE BS14 · Out in qualifying · 1 W – 1 L Draw

• Qual. Round of 32 Samuel KARG Won 6-2 6-2
• Qual. Round of 16 Luka GULAM Lost 3-6 1-6

20/092026 Humenne, Slovakia TE BD12 · Quarter-final · 0 W – 1 L Draw

• Round of 16 Bye
• Quarter-final Ilija PERIC / Konrad RYBICKI Walkover

20/092026 Humenne, Slovakia TE BS12 · Round of 32 · 0 W – 1 L Draw

• Round of 32 Jiri VASICEK Lost 1-6 7-6 0-6

08/082026 Arad, Romania TE BS14 · Round of 32 · 0 W – 1 L Draw

• Round of 32 Nesa PAVLOVIC Lost 1-5

01/082026 El Prat de LLobregat (Barcelona), Spain TE BD12 · Round of 16 · 0 W – 1 L Draw

• Round of 16 Lukas LORINCIK / Giannis MATAKOUDIS Lost 5-7 3-6

01/082026 El Prat de LLobregat (Barcelona), Spain TE BS12 · Finalist · 4 W – 1 L Draw

• Round of 32 Fedor MILAGKIN EGOROV Won 6-2 6-1
• Round of 16 Giannis MATAKOUDIS Won 6-3 6-2
• Quarter-final Inaki DE LA VEGA OLASCOAGA Won 6-2 6-3
• Semi-final Nikolay NIKOLOV Won 6-2 5-7 6-3
• Final Tiago CHARCOS CHARLES Lost 1-6 1-6

03/072026 Prijedor, Bosnia and Herzegovina TE BD12 · Finalist · 2 W – 1 L Draw

• Quarter-final Jure Domagoj LUKIN / Noa TOKIC Won 6-1 7-6
• Semi-final Niko HARDI / Marko MALINOVIC Won 6-2 6-2
• Final Sultan BAKHYTKEREIULY / Alan KIM Lost 1-6 3-6

03/072026 Prijedor, Bosnia and Herzegovina TE BS12 · Semi-final · 3 W – 1 L Draw

• Round of 32 Marko MALINOVIC Won 6-0 6-1
• Round of 16 Jure Domagoj LUKIN Won 4-6 6-3 6-0
• Quarter-final Halil Emre ULU Won 6-4 6-3
• Semi-final Sultan BAKHYTKEREIULY Lost 1-6 6-2 2-6

31/052026 Arad, Romania TE BS12 · Round of 16 · 0 W – 1 L Draw

• Round of 32 Bye
• Round of 16 Luca MEUMEU BORY Lost 6-1 3-6 3-6

09/052026 Bucharest, Romania TE BD12 · Quarter-final · 1 W – 1 L Draw

• Round of 16 Andreas LEONTIS / Giannis MATAKOUDIS Won 6-3 4-6 10-8
• Quarter-final Ruan Stefan COMAN / Tudor Mihail VLASCU Lost 3-6 4-6

09/052026 Bucharest, Romania TE BS12 · Semi-final · 3 W – 1 L Draw

• Round of 32 Tiberiu Andrei TRESTIANU Won 6-0 6-0
• Round of 16 Mitko GENOV Won 6-1 6-2
• Quarter-final Teodor Ioan SERBAN Won 6-1 6-1
• Semi-final Andreas LEONTIS Lost 6-2 2-6 2-6

03/052026 Čakovec, Croatia TE BS12 · Winner · 6 W – 0 L Draw

• Group Frane KULUSIC CUZELA Won 6-1 6-1
• Group Toma ZOVKO Won 6-0 6-1
• Group Barnabas BAGDI Won 6-1 6-1
• Quarter-final Vito BEDE Won 6-3 6-1
• Semi-final Jure Domagoj LUKIN Won 6-1 6-1
• Final Noa TOKIC Won 6-3 6-2

03/052026 Čakovec, Croatia TE BD12 · Quarter-final · 0 W – 1 L Draw

• Round of 16 Bye
• Quarter-final Jure Domagoj LUKIN / Toma ZOVKO Lost 4-6 5-7

20/032026 Vrsar, Croatia TE BS12 · Quarter-final · 2 W – 1 L Draw

• Round of 32 Andrej BORCIC Won 6-0 6-0
• Round of 16 George MINKOV Won 6-1 6-2
• Quarter-final Jure Domagoj LUKIN Lost 1-6 0-6

20/032026 Vrsar, Croatia TE BD12 · Semi-final · 2 W – 1 L Draw

• Round of 16 Jure Domagoj LUKIN / Antonio STANIC Won 4-6 7-6 10-4
• Quarter-final David RICHTER / Teodor Mihai VASILE Won 6-4 4-6 10-5
• Semi-final Niko BROLIH / Lukas LORINCIK Lost 2-6 2-6