Tennis Pro Player

---- 1983 Italian champion under 16
---- 1984 Italian champion under 18
---- 1985 World champion ITF Junior
---- 1986 Nominated for the Italain Davis Cup team for the first time (nominated every year until 1991)
---- 1987 Best ATP ranking #71, Winning the ATP Grand Prix in Bari defeating Aaron Krickstein in the final
---- 1988 Reached the quarterfinals at the Montecarlo Masters series defeating Mats Wilander (world champion that year)
---- 1989 Best result in Grand Slams reaching the 3rd round at Roland Garros
---- 1990 Wins the Italian Championships in Salerno
---- 1989 1990 1991 1992 1993 around ATP 100, winning 4 challengers event and defeating a number of players in the top 10 or 20 (Bruguera, Mancini, Krickstein, K. Carlsson, Cherkasov, Aguilera, Rosset, Boetsch, Camporese, Wheaton, to name a few)

Tennis Coach

--- 1996 Takao Suzuki of Japan (11 years, reaching a lot of goals with him)
--- 1996-1997 Worked as a practice partner with Monica Seles (number 1 in the world and the 1996 Australian Open titlist)
--- 1998 worked for a year with Miho Saeki of Japan (started with the WTA ranking #160 and ended #66)
--- 1999-2001 worked with George Bastl from Switzerland and Attila Savolt from Hungary until 2001 (both reached the top 100 starting lower than #200)
--- 1999 worked for 6 months with Ai Sugiyama from Japan (Top 20 player)
--- 2000 worked with Davide Sanguinetti from Italy until his retirement in 2008 (Davide reached many high-level goals, his best ranking was ATP #42
--- ATP Milan titlist (beat Federer in the final) and ATP Delray Beach titlist (beat Roddick in the final) and semifinalist at Queen's
--- 2001 started coaching Anna Smashnova from Israel until 2004 (Anna, also former Claudio's wife, started the year 2002 with the WTA ranking of No. 88 and ended 15th inthe world. She never went out of the Top 20 for the years 2002, 2003 and a long part of 2004)
--- 2002 coaching for 2 years Mara Santangelo from Italy (reached the WTA ranking of No. 120 at the end of 2003 starting from #350)
--- 1996 1997 1998 1999 2000 2001 2002 coach of the Japanese Davis Cup team
--- 2005 Captain of the tennis team in the Mediterranean Games in Almeria (Spain) - Italy got 2 bronze medals
--- 2005 Captain of the Italian team in the European Cup in Ceski Krumlov (Czech Rep.) by Tennis Europe - Italy finished 2nd, losing in the final

2006 -May 2009
Coached Simone Bolelli
Simone started with Claudio with the ranking of No. 248 and now is at his best ranking ATP #36 and No. 1 in Italy

August 2009-to-date
coaching Michael Berrer from Germany (his current job as a professional coach) - Michael started as No. 125 in the ATP rankings and achieved his career best ranking of No. 42 (ATP Zagreb finalist in 2010 and semifinalist in Vienna in 2010)

In 2011 Claudio teamed up with Robin Soderling, ranked 5th in the world, as his coach
In the first 2 months of 2011 Robin won 3 ATP titles (Brisbane, Marseille and Rotterdam) and won 20 out of 21 matches reaching his best ranking position #4 in the world

In 2012 Claudio returned to the WTA circuit coaching Daniela Hantuchova and is currently coaching her.
In the first part of 2012 Daniela won a WTA title in Pattaya, Thailand, reached the final in Brisbane and quartefinal in Sydney and Dubai.

In 2011 Claudio got the position at Scheckprobase in Munich, Germany, as director (www.scheckprobase.com)

In June 2010 he was elected as an ATP coach representative in the ATP Players Council until 2012

In 2012 he won the election again and still serves as a coach representative in the ATP Player Council until 2014

1997-now
Contributor to all the Italian Tennis magazines such as IL TENNIS ITALIANO, MATCH POINT, TENNIS OGGI and also to national daily newspapers (L'UNITA', IL TEMPO).

2004-2007 - official commentator for MEDIASET, a national channel ITALIA 1, during the Italian Open ATP Masters Series

Liceo Classico (Classical Lyceum), a secondary school in Italy

Tecnico Nazionale position in the Italian Tennis Federation (4th level) from 2001 until 2009

Belongs to the official state list of Giornalista Pubblicista in Italy