[1] Marumani made his first-class debut on 18 March 2021, for Rocks, in the 2020–21 Logan Cup.
[2] Prior to his first-class debut, he was named in Zimbabwe's squad for the 2020 Under-19 Cricket World Cup.
[4] In April 2021, Marumani was named in Zimbabwe's squad for their Twenty20 International (T20I) series against Pakistan.
[7] In July 2021, Marumani was named in Zimbabwe's One Day International (ODI) squad for their series against Bangladesh.
[9] In February 2022, during the 2021–22 Logan Cup, Marumani scored his maiden century in first-class cricket, with 102 runs.