St Columban’s is a member of The Associated Schools (TAS) inter-school sporting competition which gives students the opportunity to compete in a variety of team sports.  Both experienced and beginner players are encouraged to particpate with the competition being an element of the College's extensive co-curricular offerings.  The aim of The Assocaited Schools is to promote and conduct various forms of inter-school acticity, with a view of fostering a spirit of fellowship.  The competition is divided into trimesters, each of ine weeks duration, with matches being played on Satuday mornings.  TAS also holds carnivals for Swimming, Cross Country and Athletics. Students who perform well in these may also compete at Zone or Regional level.  Similar representative teams are also selected in the trimester sports.

TAS comprises 8 independent schools.  The schools that compete in this competition with St Columban's College include:

• Canon Hill Anglican College
• Canterbury College
• St John's Anglican College
• Ormiston College
• John Paul College
• St Paul's School
• West Moreton Anglican College

At the end of each trimester the College hosts an Awards night where trophies are presented to outstanding athletes and big improvers. Any premiership winning teams are also presented with pennants. 

St Columban’s prides itself on commitment, resilience and dedication.  Students learn the value of teamwork through healthy competition.

The following sports are played in each trimester:

Trimester 1 : Boys Cricket and Volleyball; Girls Basketball and Tennis

Trimester 2 : Boys Rugby Union and Tennis; Girls Netball and Hockey

Trimester 3 : Boys Basketball and Soccer: Girls Volleyball and Touch Football

The sports carnivals are scheduled:

Trimester 1 : TAS Swimming Carnival

Trimester 2 : TAS Cross Country Carnival

Trimester 3 : TAS Athletics Carnival