| Singles | |
|---|---|
| 2015 Sibiu Open | |
| Champion |  Adrian Ungur |
| Runner-up |  Pere Riba |
| Final score | 6–4, 3–6, 7–5 |
Jason Kubler was the defending champion but chose not to compete this year.
| Singles | |
|---|---|
| 2015 Sibiu Open | |
| Champion | Adrian Ungur |
| Runner-up | Pere Riba |
| Final score | 6–4, 3–6, 7–5 |
Jason Kubler was the defending champion but chose not to compete this year.
Dušan Lajović (quarterfinals)
Tobias Kamke (first round) Laslo Djere (first round)
Germain Gigounon (second round)
Gianluca Naso (first round)
Calvin Hemery (second round) Tristan Lamasine (second round)
Jan Mertl (first round)| Semifinals | Final | ||||||||||||
| Adrian Ungur | 6 | 6 | |||||||||||
| Q | Petru-Alexandru Luncanu | 1 | 1 | ||||||||||
| Adrian Ungur | 6 | 3 | 7 | ||||||||||
| Pere Riba | 4 | 6 | 5 | ||||||||||
| Pere Riba | 6 | 7 | |||||||||||
| Miljan Zekić | 3 | 5 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | D Lajović | 6 | 6 | ||||||||||||||||||||||||
| WC | D Dima | 2 | 4 | 1 | D Lajović | 3 | |||||||||||||||||||||
| Q | Marc Giner | 3 | 6 | 5 | LL | AS Apostol | 0r | ||||||||||||||||||||
| LL | Andrei Stefan Apostol | 6 | 1 | 7 | 1 | D Lajović | 4 | 6 | 3 | ||||||||||||||||||
| A Ungur | 6 | 3 | 6 | A Ungur | 6 | 2 | 6 | ||||||||||||||||||||
| Maxime Tabatruong | 2 | 6 | 2 | A Ungur | 6 | 6 | |||||||||||||||||||||
| A Giannessi | 6 | 4 | 4 | 7 | T Lamasine | 4 | 4 | ||||||||||||||||||||
| 7 | T Lamasine | 3 | 6 | 6 | A Ungur | 6 | 6 | ||||||||||||||||||||
| 3 | L Djere | 2 | 4 | Q | P-A Luncanu | 1 | 1 | ||||||||||||||||||||
| Q | P-A Luncanu | 6 | 6 | Q | P-A Luncanu | 6 | 4 | 6 | |||||||||||||||||||
| M Chazal | 6 | 6 | M Chazal | 4 | 6 | 3 | |||||||||||||||||||||
| WC |  Michal Dembek | 2 | 1 | Q | P-A Luncanu | 7 | 67 | 6 | |||||||||||||||||||
| Q | Riccardo Sinicropi | 2 | 1 |  D Kuzmanov | 5 | 79 | 3 | ||||||||||||||||||||
| J Cagnina | 6 | 6 | J Cagnina | 3 | 61 | ||||||||||||||||||||||
| D Kuzmanov | 6 | 5 | 7 | D Kuzmanov | 6 | 77 | |||||||||||||||||||||
| 8 | J Mertl | 3 | 7 | 5 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | G Naso | 65 | 4 | ||||||||||||||||||||||||
| WC | V Crivoi | 77 | 6 | WC | V Crivoi | 79 | 3 | 6 | |||||||||||||||||||
 F Horanský | 7 | F Horanský | 67 | 6 | 3 | ||||||||||||||||||||||
| P Krstin | 5r | WC | V Crivoi | 4 | 0 | ||||||||||||||||||||||
| V Hănescu | 6 | 3 | 4 | P Riba | 6 | 6 | |||||||||||||||||||||
| P Riba | 4 | 6 | 6 | P Riba | 6 | 60 | 6 | ||||||||||||||||||||
| Omar Giacalone | 67 | 4 | 4 | G Gigounon | 0 | 77 | 4 | ||||||||||||||||||||
| 4 | G Gigounon | 79 | 6 | P Riba | 6 | 7 | |||||||||||||||||||||
| 6 | C Hemery | 77 | 6 | M Zekić | 3 | 5 | |||||||||||||||||||||
| Q |  S Diez | 61 | 4 | 6 | C Hemery | 6 | 3 | 2 | |||||||||||||||||||
| WC | VV Cornea | 4 | 6 | 3 | G Mager | 3 | 6 | 6 | |||||||||||||||||||
| G Mager | 6 | 2 | 6 | G Mager | 3 | 5 | |||||||||||||||||||||
 T Brkić | 77 | 4 | 2 | M Zekić | 6 | 7 | |||||||||||||||||||||
| M Zekić | 64 | 6 | 6 | M Zekić | 6 | 4 | 77 | ||||||||||||||||||||
| J Kovalík | 6 | 77 | J Kovalík | 2 | 6 | 60 | |||||||||||||||||||||
| 2 | T Kamke | 4 | 63 | ||||||||||||||||||||||||
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Kremlin Cup, Tennis
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