Filip Cristian Jianu
Filip Cristian Jianu is a Romanian tennis player.
Jianu has a career high ATP singles ranking of 400 achieved on 16 of March 2020
Jianu has a career high ITF junior combined ranking of 5 achieved on 4 February 2019.
Jianu represents Romania at the Davis Cup.Singles: 5 (3–2)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | | M15 Tabarka, Tunisia | World Tennis Tour | Clay |  Mathieu Perchicot | 6-2, 6-4 |
| Loss | 1–1 | | M15 Tabarka, Tunisia | World Tennis Tour | Clay | Mathieu Perchicot | 2-6, 6-3, 0-6 |
| Win | 2–1 | | M25 Pitesti, Romania | World Tennis Tour | Clay |  Marko Tepavac | 7-6, 5-0 RET |
| Loss | 2-2 | | M15 Tabarka, Tunisia | World Tennis Tour | Clay |  Ignacio Monzon | 1-6, 2-6 |
| Win | 3-2 | | M15 Heraklion, Greece | World Tennis Tour | Hard |  Lucas Catarina | 7–5, 3–6, 6–3 |
