St.Thomas' are the current All-Ireland Senior Club Hurling champions having defeated O'Loughlin Gaels of Kilkenny in the final in January 2024.

They were crowned Galway Senior Champions for the first time in 2012 by defeating Loughrea in the final on a scoreline of 3–11 to 2–11 in Pearse Stadium.

They followed this up by taking the All-Ireland Senior Club Hurling Championship by defeating Kilcormac-Killoughy on St Patrick's Day.

St Thomas' led at half time however Gort rallied, scoring two late points to secure a replay.

[10] They faced Antrim side and Ulster Champions Loughgiel Shamrocks in the All Ireland semi-final in Parnell Park.

[12] St Thomas' won their first All-Ireland Club Championship title on 17 March 2013 after defeating Kilcormac-Killoughey of Offaly on a scoreline of 1–11 to 1–09.

[16][17] On 21 January 2024, St Thomas' won the final by 0-18 to 0-17 against O'Loughlin Gaels in Croke Park to win their second All-Ireland Senior Club Hurling Championship title.

O'Loughlin Gaels appeared to have scored a goal in the first half when a low shot from Owen Wall looked to have gone over the goal-line before being cleared by Fintan Burke.