As of the end of 2021, she had represented the New Zealand national netball team on three occasions.

Monica Falkner was born on 8 April 1996 in Ōpōtiki in the eastern Bay of Plenty in the North Island of New Zealand.

At the end of 2019 she suffered an anterior cruciate ligament injury, a common problem for netball players, and was out of the game for 15 months.

After recovering, she made her debut for the Silver Ferns in October 2020, against England in the 2020 Taini Jamison Trophy Series, being the 176th women to play for the team.

For the 2021 season she joined the Northern Stars but her playing time was limited by a further injury to the same knee.