Lake Karapiro
Tew took up rowing in 2008 while at Queen Margaret College. She attended her first Maadi Cup in 2009 at Lake Karapiro but did not get into any of the A-finals. At the 2010 Maadi Cup at Lake Ruataniwha, she won a bronze medal in the girls U16 double sculls. At the 2011 Maadi Cup at Lake Karapiro, she reached B-finals in all three of her boat classes.