|Date of birth||10 December 1968|
|Place of birth||Rio de Janeiro, Brazil|
|Height||1.78 m (5 ft 10 in)|
|1993||→ Santa Cruz (loan)|
|2014||América de Natal|
|2017||Santa Cruz |
|* Senior club appearances and goals counted for the domestic league only
Known as Marcelo in his playing days, Martelotte was born in Rio de Janeiro. A Taubaté youth graduate, he made his debut for the club in 1987. In 1989, he moved to Bragantino, being a regular starter in Vanderlei Luxemburgo's Série B and Campeonato Paulista winning campaigns.
After a short spell at Santa Cruz, Marcelo returned to Bragantino before joining Santos in 1997. A backup to Zetti at Peixe, he returned to Santa in 1999, and subsequently represented Sport Recife and his first club Taubaté, whom he retired in 2002 at the age of 34.
In 2010 Martelotte returned to Santos, being named Dorival Júnior's assistant. On 22 September 2010, after the latter's dismissal, he was appointed interim manager; he was also in charge of the club in March of the following year, as a replacement to sacked Adílson Batista.
On 24 May 2013 Martelotte moved to Santa Cruz's fierce rival Sport, after being crowned champions of the year's Campeonato Pernambucano. Sacked on 8 September, he was subsequently in charge of Náutico, Atlético Goianiense (two stints) and América-RN before returning to Santa Cruz on 13 June 2015; with the club in the relegation zone, he ended the year with a top level promotion, finishing second and winning all of the club's last six matches.
- Santa Cruz
- Campeonato Pernambucano: 1993
- Santa Cruz
- Campeonato Pernambucano: 2013
- Atlético Goianiense
- Campeonato Goiano: 2014
- "Santa Cruz anuncia Marcelo Martelotte como novo treinador" (in Portuguese). GloboEsporte.com. Retrieved 27 August 2017.
- "Marcelo Martelotte" (in Portuguese). Terceiro Tempo. Retrieved 6 December 2015.
- "Depois de demitir Dorival, Santos será dirigido por Marcelo Martelotte no clássico contra o Corinthians" [After dismissing Dorival, Santos will be managed by Marcelo Martelotte in derby against Corinthians] (in Portuguese). R7. 22 September 2010. Retrieved 6 December 2015.
- "Santos demite Adílson Batista" [Santos dismisses Adílson Batista] (in Portuguese). O Estado de S. Paulo. 27 February 2011. Retrieved 6 December 2015.
- "Marcelo Martelotte, ex-Santos, vai dirigir o Ituano na Copa Paulista" [Marcelo Martelotte, ex-Santos, will manage Ituano in Copa Paulista] (in Portuguese). Globo Esporte. 9 May 2012. Retrieved 6 December 2015.
- "Marcelo Martelotte deixa o comando do Ituano" [Marcelo Martelotte leaves Ituano] (in Portuguese). Itu. 4 September 2012. Retrieved 6 December 2015.
- "Marcelo Martelotte deixa o Santa Cruz e assume o comando do Sport" [Marcelo Martelotte leaves Santa Cruz and takes the reins of Sport] (in Portuguese). Globo Esporte. 24 May 2013. Retrieved 6 December 2015.
- "Sport anuncia demissão do técnico Marcelo Martelotte" [Sport announces dismissal of manager Marcelo Martelotte] (in Portuguese). IG Esporte. 8 September 2013. Retrieved 6 December 2015.
- "Atlético-GO negocia volta de Marcelo Martelotte, campeão goiano em 2014" [Atlético-GO negotiates return of Marcelo Martelotte, champion of goiano in 2014] (in Portuguese). Globo Esporte. 17 March 2015. Retrieved 6 December 2015.
- "Após demitir Ricardinho, Santa Cruz anuncia volta de Marcelo Martelotte" [After sacking Ricardinho, Santa Cruz announces the return of Marcelo Martelotte] (in Portuguese). Globo Esporte. 13 June 2015. Retrieved 6 December 2015.