Hailey Dunham played basketball for Winward High School and in the 2006/07 season she joined USC, playing 4 seasons for the trojans.
In the 2010/11 season, Hailey Dunham signed with Ulriken and she averaged 22.8 points, 7.7 rebounds, 4.3 assists and 3.6 steals per game, becoming Norwegian League Champion and MVP.
In the 2011/12 season, Hailey Duhnam signed in Greece with Esperides and she averaged 11.3 points and 7.5 rebounds per game, reaching the Greek Cup Final and the Greek League Semifinals.
Hailey Dunham continued her professional career in Portugal during the 2012/13 season and playing for Quinta Dos Lombos she averaged 14.8 points and 6.5 rebounds per game, becoming Portuguese Supercup Champion and Portuguese Cup Finalist.
After averaging 27 points and 10.3 rebounds per game in Argentina, Hailey Dunham returned to Greece in november 2013 and she averaged 13.9 points and 8.1 rebounds per game playing for Ikaros.
In the 2014/15 season, Hailey Dunham signed in Luxembourg with Basket Esch and she averaged 24.3 points and 13.1 rebounds per game.
In the 2015/16 season, Hailey Dunham returned to Greece and playing for Athinaikos she averaged 19.6 points and 11.1 rebounds per game, being the best scorer and the second best rebounder in Greek league.
In the 2016/17 season, Hailey Dunham signed in Spain with Mann Filter and she averaged 7.6 points and 4.6 rebounds in 25 minutes per game. In december 2016, Hailey moved to CREF and she averaged 11.9 points and 4.5 rebounds per game in Spanish top division.
In the 2017/18 season, Hailey Dunham signed in Greece with Niki Lefkadas and she avearaged 16.3 points and 9.3 rebounds per game with 58% from the 3 point line.
|2018/19||FEMENÍ SANT ADRIÀ||SPAIN-D1||5.4||5.2||0.9||27||28%||16%||56%||0.7||0.1|
|2012/13||QUINTA DOS LOMBOS||PORTUGAL-D1||14.8||6.5||1.5||29||46%||8%||71%||1.3||0.4|