In May 2010, Copil reached his first ATP Challenger Tour final at theTrofeo Paolo Corazzias a qualifier. On his route to the final he won in three sets against AustralianBernard Tomicin the semifinals and finished runner-up to GermanDenis Gremelmayr.
Season 2011 started well for Copil. He reached his second Challenger final at theTretorn Serie+event inKazan,Russia. In the final, he won against 4th seeded GermanAndreas Beck,in straight sets.[5]
In season 2012, Copil beat world No. 13Marin Čilićin the first round at theChina Openin Beijing.[6]
2015–2017: Major debut, Maiden ATP doubles title, Top 100 in singles
He made his Grand Slam main draw debut at the2015 Australian Open,where he defeatedPablo Andújar.[5]At the same tournament, he recorded the fastest serve at a Grand Slam: 242.0 km/h (150.4 mph).[7]
At the2015 Romanian Openin April, partnering fellow RomanianAdrian Ungur,after saving five match points, they defeatedNicholas Monroe/Artem Sitak17–15 in the match tiebreak to become the first Romanian team to win the Bucharest title since 1998 (Pavel/Trifu).[8][9]
Copil reached his first ATP World Tour-level singles final at theSofia Open,where he lost toMirza Bašić.[10]
Ranked No. 93, Copil reached the final of theSwiss Indoorsin Basel as a qualifier, losing toRoger Federerafter defeating world No. 6Marin Čilićand No. 5Alexander Zverevon the way, his first ever wins over top-10 players. He became the lowest-ranked Basel finalist since No. 100 Patrick McEnroe in 1994 and 1st qualifier in the final since Baghdatis in 2005.[11]
2019: Career-high singles ranking, Grand Slam success
Copil reached the2019 Australian Opensecond round for the second time defeatingMarcel Granollersin straight sets. As a result, he reached a career-high singles ranking of No. 56 on 28 January 2019.[1][4]
His best showing in doubles at a Grand Slam in his career was reaching the third round of the2019 French OpenpartneringRohan Bopanna.He also reached the second round of the2019 US Openfor the first time in his career in singles and doubles.
Copil currently resides and trains in his hometown Arad, Romania.
He got married with his long-term girlfriend Ramona in 2018. His first son Arthur was born in 2020.
Besides playing professional tennis Copil also enjoys playing football, watching moto GP, collecting watches and he is an amateur photographer. Marius currently has a dog named Alex Bogdan.[12][13]
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.