Student Life

Athletics - Staff & Resources



Athletic Director

Gary Bricker has been a member of the Trinity High School staff since 1993. Mr. Bricker has coached baseball, football and track and field and was assistant athletic director for 13 years prior to taking the lead as Athletic Director. Presently, he serves as President of the Mid Penn Conference and is chairperson of the sport of Cross Country for the conference.  In addition Mr. Bricker officiates PIAA and NCAA track and field competition.

B.S., Education – Millersville University

M.Ed., Education – NorthCentral University


Assistance Athletic Director

Terrence Mull has been around Trinity High School athletics most of his life. As a Trinity graduate himself (2002), and the sibling of four Trinity graduates, the Trinity tradition in his family is longstanding. While a Trinity student, Mr. Mull played five sports and received a varsity letter in four. After graduating from Slippery Rock in 2009, he joined the Trinity staff as a teacher, coach, and assistant athletic director. Currently, Mr. Mull teaches health and physical education and coaches girls soccer and baseball, in addition to his Assistant Athletic Director duties. He also officiates soccer at the collegiate and professional level.

B.S., Sports Management, Misericordia University

B.S., Health & Physical Education, Slippery Rock University

M.Ed., Educational Leadership, Shippensburg University

Mr. LARRY KOSTELAC ‘76, P’01, 02, 06

Director of Athletic Advancement

In addition to being one of the most successful basketball coaches in the area, Larry Kostelac also works to further the athletic programing of the school as the Director of Athletic Advancement. Larry has long been ingrained in the culture of Trinity: his father was Dean of Students for many years, he’s an alumnus himself, and his children attended the school. This in addition to running one of the most successful high school basketball programs for decades. Larry’s devotion to Trinity extends to all students and all sporting programs at the school.


Athletic Trainer

Matt O’Brien has been the head Athletic Trainer at Trinity High School since August 2015, in addition to being employed by Select Medical Physical Therapy. Matt has been a NATA-BOC Certified Athletic Trainer since 2004 and is licensed by the state of Pennsylvania as both a Certified Athletic Trainer and a Physical Therapy Assistant. His duties include providing quality athletic training service at home athletic events and away football games, coordinating rehabilitation for all student-athletes, and providing educational tools for injury prevention and awareness.

B.S., Sports Medicine, King’s College

A.S., Physical Therapy Assistant, The Pennsylvania State University

M.S., Excercise Science, California University of Pennsylvania

Athletic Advancement


Create a legacy for yourself, your loved ones, your team or your class with an engraved brick placed in the walkway to Trinity’s COBO field. Each brick costs $50. A brick engraved with a shamrock costs $100. By purchasing a brick (or more than one), you give a lasting gift and help the school as well. The brick walkway helps to fund continued improvements on COBO Field.


Promote your business on our new digital banners, located both at COBO Field and the gymnasium. Contact Larry Kostelac with questions.

Student Life

Athletics - Concussion Protocols

Trinity High School takes seriously the physical, emotional and academic consequences of concussions. We strongly encourage students who may have sustained a concussion to see a physician who specializes in treatment of concussions and head trauma and we work with those physicians to help students fully recover so that they may not only return to play, but fully access their academic course of study.

Of primary importance in recovery of head injury is rest. Therefore, our first suggestion for students is to remain at home for at least two days after sustaining a concussion. That time at home should be spent away from studies, and all screens (computers, televisions, cell phones, I-pads).

Once a student has been seen by a concussion specialist:

• The student should be given a list of suggested academic accommodations to present to the school.

• The school, through the Instructional Support Specialist, will create a Return to Learn Protocol that will be shared with all the student’s teachers.

• Should the accommodations suggest extended time on assignments and tests, the student will have all study halls moved to the Instructional Support classroom. This move is temporary; the student will return to their regular study hall/commons as soon as cleared of the concussion and all back academic work is complete.

During the time the student is under Academic Accommodations, the following additional Trinity requirements will be in place. These requirements cannot be negated by a doctor’s suggested accommodations.

• Student will be encouraged to go to the nurse’s suite for a short rest period during their study halls/commons and for the last 15-20 minutes of lunch

• Student will be required to eat lunch outside of the cafeteria. The level of noise & amount of light in the cafeteria can cause symptoms to return or get worse. A separate table will be set up outside of the lunch lines & the student can invite friends to eat with them at that table.

• Student will not be permitted to attend games or practices until they are able to attend full days of school for at least five days in a row. Outside practices in the sun, or indoor practices with excessive noise can cause symptoms to return or get worse. Additionally, the student should be leaving school at the end of the school day to go home to rest. Adequate rest is the only way a concussion can improve

• Student will not be permitted to attend any school sponsored dances, including THON. Flashing lights, loud music and for THON the length of the event could make symptoms worse, thus prolonging recovery

• Student will not be permitted to attend Kairos. The intensity of the program, including later evenings and few chances for the student to rest quietly on their own, does not promote and environment of recovery and will prolong their symptoms.

• Student participation in field trips may be restricted. The type of field trip, location, duration and physical activity (including amount of expected walking) will be evaluated with the teacher sponsoring the field trip to determine if such an activity could cause symptoms to be exacerbated.

If student is attending school on a part-time basis during recovery, he/she will not be permitted to attend any school functions. After the student has demonstrated full-day attendance on five consecutive days, the student will be permitted to have limited access to assemblies, and classes previously restricted by noise.

If student is attending school on a part-time basis during recovery, he/she will not be permitted to attend any school functions. After the student has demonstrated full-day attendance on five consecutive days, the student will be permitted to have limited access to assemblies, and classes previously restricted by noise.

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