Telfer was a previous member of the champion Southern Sting in the National Bank Cup from 2002 until 2007. With the start of the ANZ Championship in 2008, she remained in Southland playing for the new Southern Steel franchise. Telfer also made her debut for the Silver Ferns that year, against Australia.

Telfer is also a past member of the New Zealand White Sox softball squad.

Born: 15 October 1984, Invercargill
Current Teams: Silver Ferns, Southern Steel
Positions: C, WD, WA
Height: 1.72m
Wendy wears: Netburner Professional II