[1] Raised in Sydney, Chapman attended Newington College[2] where he was coached by Michael Morgan OAM, an Olympian and fellow Old Newingtonian, and Robert Buntine, deputy headmaster.

For twelve of the thirteen years from 2003 to 2015 he was seated in the New South Wales state VIII which contested the King's Cup at the Australian Rowing Championships.

Chapman was first selected to compete for Australia in the two seat of the men's VIII who took the silver medal at the under 23 World Championships in Copenhagen in 2000.

[6] He won a silver medal at the 2011 World Rowing Championships in the men's coxed pair with William Lockwood and David Webster.

Employed as an associate director in the bank's institutional group, Chapman left Westpac in 2015 to commence his MBA at the Macquarie Graduate School of Management.