As a junior player, Schreefel won the Dutch Stroke-Play Championship five times, in 1999, 2000, 2002, 2003 and 2004.

She attended the University of Southern California where she was a member of the 2008 NCAA National Championship winning team, was the 2006 NCAA Individual champion, a three-time All-American and finished in the top-10 14 times.

[citation needed] Schreefel was part of the Dutch team finishing silver medalists at the 2008 European Ladies' Team Championship after host nation Sweden at Stenungsund Golf Club.

[3][4] Schreefel turned professional in 2008, and joined the Futures Tour on 27 January 2009.

She had one win on the Futures Tour in her rookie season and finished tenth on the season-ending money list to earn LPGA Tour status for 2010, although she was unable to gain entry into any LPGA events in 2010 because of her low status on the LPGA priority list and she played a second full season on the Futures Tour that year.