St Joseph's School in Port Lincoln cheer on Kyle Chalmers

Just as they did in 2016 when he swam for gold, students at St Joseph's School in Port Lincoln joined the chorus of supporters cheering on Kyle Chalmers in the 100m freestyle final at the Olympics in Tokyo Thursday.

Chalmers swam in the final of the 100m freestyle, the event he won gold in at the Rio de Janeiro Olympics in 2016, and despite a spirited sprint in the back 50 finished second by 0.06 seconds behind winner Caeleb Dressel of the United States.

However the students of St Joseph's School, where Chalmers completed his primary schooling before moving to Immanuel College in Adelaide, showed their support and cheered him

Students from St Joseph's School in Port Lincoln send their congratulations to Kyle Chalmers after his swim in the 100m freestyle. Students featured are Mitch Davidson, Amelia Giddings, Saxon Hawkins, Freya Hawkins, Jimmy Doudle, Hugh Reichstein and Connor Rutherford. Video clips courtesy of St Joseph's School.

Chalmers completed primary school at St Joseph's before moving to Immanuel College in Adelaide to accommodate his progressing

The school posted to Facebook a video of one of its year 4 classes cheering Chalmers on while holding up green and gold signs that read 'Go Kyle'.

In the post the school said "Kyle is an incredible young man both in and out of the water. What an awesome role model for our students and the youth of Australia. We are sure he will inspire many."