He is a powerful wicketkeeper batsman and came into limelight during the BCCI Corporate Trophy where he played alongside the likes of Yuvraj Singh, Suresh Raina and Robin Uthappa and single-handedly guided his team Air-India Red to victory in the semi-finals.
He was also used as an opening batsman by Mumbai cricket team in the Vijay Hazare Trophy and was the highest scorer for them in the 2009-2010 tournament. Prior to this he captained the Mumbai U-22 team and led them to victory in the 2007-2008 C. K. Nayudu Trophy.
In the 2011-2012 season he topped the batting averages for Mumbai in the Syed Mushtaq Ali Trophy. On the basis of this performance after dissolution of Kochi Tuskers Kerala, he got new contract from Mumbai Indians for 2012 Indian Premier League
He was also one of the leading scorers in Mumbai Club Cricket in 2012-2013 season scoring as many as 7 hundreds  and on the basis on his performances made it back to the Mumbai Ranji team, a spot that he had lost due to injury a year before.
He has started off the 2013-2014 season on a high note again having recently achieved the highest ever score in Kanga League history when he made 232* playing for Cricket Club of India. He recently broke the record of the most runs scored in a single season in the Kanga League.
In August, 2016, Sushant begun his MBA at London Business School.
- Sushant Marathe | India Cricket | Cricket Players and Officials | ESPN Cricinfo
- Tenacious Marathe carries Air India Red through | Air India Red v ONGC, BCCI Corporate Trophy 1st semi-final, Bangalore Report | Cricket News | ESPN Cricinfo
- Mumbai win CK Nayudu Trophy | Cricket News | Indian Domestic Season, 2007-08 | ESPN Cricinfo
- Sushant Marathe Profile