|Date of birth||14 January 1989|
|Place of birth||Rimini, Italy|
|Height||1.83 m (6 ft 0 in)|
|2010||→ Südtirol (loan)||15||(3)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15 September 2019|
Rimini was expelled from professional league in 2010, and Marchi joined Chievo on a free transfer. However, he re-joined Südtirol in co-ownership deal for a peppercorn fee of €500 Südtirol bought Marchi outright for another €500 after he scored 9 goals as team top-scorer.
On 14 July 2011 he was signed by Serie A team Novara but re-sold to Pavia on 16 July in another co-ownership deal. He was the joint-topscorer along with Filippo Falco. Marchi also scored once in relegation "play-out" (another goal by Alessandro Cesca), made the club survived from relegation. In June 2012 he returned to Novara and re-sold to Entella on 1 August 2012. In June 2013 Marchi joined Entella outright from Novara for free.
- "L´FC Südtirol domenica in trasferta contro la Pro Vercelli: Mattia Marchi nuovo attaccante dei biancorossi". F.C. Südtirol (in Italian). 8 January 2010. Retrieved 29 November 2010.
- A.C. Chievo-Verona S.r.l. Report and Accounts on 30 June 2011 (in Italian)
- "Classifica Marcatori - 1° Divisione gir. A". Lega Pro (in Italian). ca. End of 2010–11 season. Archived from the original on 3 July 2011. Retrieved 3 July 2011. Check date values in:
- "Alessandro Bassoli e Mattia Marchi in grigiorosso" (in Italian). U.S. Cremonese. 25 July 2014. Retrieved 10 October 2015.
- "Alessio Ruci in grigiorosso. Mattia Marchi ceduto al Pavia" (in Italian). U.S. Cremonese. 23 January 2015. Retrieved 10 October 2015.
- "MATTIA MARCHI ENTRA UFFICIALMENTE NEL REPARTO ATTACCANTI DELLA REGGIO AUDACE F.C." (Press release) (in Italian). Reggio Audace. 30 July 2019.