- 1995 – Initial tables donated.
- 2007 – Major lighting improvement in gym
- 2008 – Killerspin tables purchased, gym divider system created
- 2008 to 2011 – Four major tournaments held including first Wheelchair singles and exhibition match with Mayor McGinn
- 2010 – Free Kids Ping Pong coaching starts on Saturday afternoons
- 2010 – Rental ends, punch card payment begins
- 2012 – SPTTC Showcase
- 2012 – USATT Sanctioned Green Lake Open
- 2014 – Eric Pattison wins his first US Open
- 2016 – GLTTC collaborates with Seattle Adaptive Sports to create one of 6 para-table tennis programs in the nation
- 2017 – Collaboration with Swedish Hospital MS Center
- 2018 – Innovative kanban system started on Fridays
- 2019 – ARC Fundraiser brings in $5740 from 60 players