Coaching Career Highlights:
 Has coached Monica Niculescu for over 12 years
 Some notable singles results with Niculescu include three WTA singles titles  (2017 - 125/Limoges, 2016 - Luxembourg, 2014 - Guangzhou, 2013 – Florianopolis) and five finalist appearances (2017 - Hobart, 2016 - Seoul, 2015 - Nottingham, 2012 - Luxembourg, 2011 – Luxembourg)
 Niculescu has also won eight doubles titles under Calin’s guidance, including 2017 - Biel/Bienne (w/Hsieh), 2016 - Shenzhen (w/King), Washington DC (w/Wickmayer), New Haven (w/Mirza), 2014 - Shenzhen, Hobart (both w/Koukalova), 2012 - Hobart (w/Begu) and 2009 - Budapest (w/Kleybanova)

Playing Experience:  
Competed at the collegiate level

Personal:  
Married to wife, Laura, with one son and one daughter