[10] Trinity opened its doors in 1953, when Archbishop John Floersh anticipated the growth of Louisville's eastern suburbs by choosing the site of Holy Trinity School, a former Roman Catholic church and grade school in St.

[8] The school is named after the Christian doctrine of the Trinity,[10] which holds that God is three consubstantial persons.

[12] On September 1, 1882, Bishop William McClosky established a new parish for the benefit of the farming community of St. Matthews.

This new parish, named Holy Trinity, was the first Catholic Church in eastern Jefferson County, and the twentieth in the area.

At that time, the parish donated its property to the Archdiocese for the purpose of establishing Trinity High School.

[13] Before the school opened in the fall of 1953, Shamrock Hall and the Trinity Football Field were added to the campus, as well as a rectory for the resident priest.

In 2001, Alumni Hall was added to the main building, which serves as the school's cafeteria and administrative hub, as well as hosting the Trinity Campus Store.

In November 2004, it was announced that Trinity would be razing its athletic stadium to build a brand new one at the end of the season.

[23] Later that year, Head Football Coach Bob Beatty was voted the 2011 USA Today Coach of the Year[24] In December 2016, Trinity defeated Lafayette High School 56–21, giving Trinity their 24th State Football Title.

The game made Trinity the most successful high school football team in the state's history.

[21] In 2017, Trinity followed up this victory by producing a second continuous undefeated season in a row, and winning their 25th State Football Title by beating rival St. X 38–21.

After the ceremony, Head Coach Bob Beatty stated: "Any time you are recognized by a group (MaxPreps) that represents your profession it's like you belong among the very best.

MaxPreps is very important in the world of high school football and to be selected to the Tour of Champions means you're good.

In 2008, NFL Films produced a documentary about the rivalry that was nationally broadcast on CBS on Thanksgiving Day.

After losing the regular season game 48–16 in September 2005, Trinity defeated St. Xavier in the Class 4A state championship 14–6 in December.

The series is dedicated to featuring the greatest high school football rivalries in the United States and bringing them to the national spotlight.

[44] In 2005, Trinity won the Louisville Invitational Tournament (LIT) for the first time in school history.

Over the years, Trinity's cross country program has compiled a total of 20 Kentucky state team titles.

[49] These teams were coached by Jerry Denny, Ken Combs, Dick Bealmear, Rich Rostel, Chad Waggoner, and Scott Holzknecht.

Taking place each fall In Louisville, the meet has evolved into a large event that is currently held over two different days in late September - on a Friday evening and Saturday morning.