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TeenMediationInternational.com
Home
About
  • What is TMI?
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  • PRINCIPIA NATL 2025
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November 14-15 🌎🤝 🗓️🫂 Register now!

November 14-15 🌎🤝 🗓️🫂 Register now!

November 14-15 🌎🤝 🗓️🫂 Register now!

November 14-15 🌎🤝 🗓️🫂 Register now!

November 14-15 🌎🤝 🗓️🫂 Register now!

November 14-15 🌎🤝 🗓️🫂 Register now!

Winners - Principia 2025 National Tournament

Outstanding Mediation Team (Top 4 Teams)

1st place Mediation Team- Principia Team 4 (Lucy, Sophie, Marley)

2nd place Mediation Team- STEAM Academy Team 1 (Roderick, Gabbie, Kenvaunte) 

3rd place Mediation Team- Principia Team 5 (Ian, David, Rowan)

4th place Mediation Team - STEAM Academy Team 2 (Miyauna, Justin, Rocko)

Outstanding Advocate/Client Pairs (Top 4)

1st Place: Sophie Zinn and Marley Dorsey (Prin 4)

2nd Place: Marley Dorsey and Lucy Keyes (Prin 4)

3rd place: Lucy Keyes and Sophie Zinn (Prin 4)

4th place: Gabbie Griffin and Roderick Willis (STEAM 1)

Outstanding Mediator (Top 6)

1st Place - Kenvaunte Patterson (STEAM 1)

2nd Place- Lucy Keyes (Prin 4)

3rd Place- Tarae Taylor (STEAM 3)

4th Place- Marley Dorsey (Prin 4) 

5th Place- Roderick Willis (STEAM 1)

6th Place- Miyauna Bryant (STEAM 2) 

Outstanding Client (Top 3)

1st Place- Katie Spies (Prin 6)

2nd Place- Rowan Kirkbride (Prin 5)

3rd Place- Roderick Willis (STEAM 1) 

Thank you

A big thank you to all the judges, adult and student volunteers, Principia School adminisrtation, teachers, staff and admissions office.

2025 National High School Mediation Tournament

Join us November 14-15, 2025, at Principia School in St. Louis, Missouri, for an engaging tournament experience. Whether you're a newcomer or a seasoned competitor, this event offers a unique opportunity to hone your negotiation skills, enhance problem-solving abilities, and practice goal-oriented communication. Since 2021, Principia has proudly hosted this tournament, fostering an environment where differences are resolved peacefully and future-ready skills are built. 

Registration Links

Team RegistrationJudges/Volunteer registration

Tournament & Training Schedule

FRIDAY

JUDGES/VOLUNTEER ORIENTATION

SATURDAY

12:00 pm Training & Speed Coaching

2:15 pm Team Check-In

2:45 pm Opening Ceremony

3:15 pm Special Facts

3:45 pm Round 1 Mediation

5:00 pm Concluding Social

SATURDAY

JUDGES/VOLUNTEER ORIENTATION

SATURDAY

7:40 am Check-in

8:00 am Special Facts

8:30 am Round 2 Mediation

10:00 am Special Facts

10:30 am Round 3 Mediation

11:50 am Lunch

1:00 pm Announce Finalists

1:10 pm Special Facts

1:45 pm Final Round Mediation

3:30 pm Awards Ceremony

JUDGES/VOLUNTEER ORIENTATION

JUDGES/VOLUNTEER ORIENTATION

JUDGES/VOLUNTEER ORIENTATION

Online Orientation

Wednesday, November 12, 5:00-6:00 PM

led by Kathleen Ruane Leedy

Make sure you are registered as a volunteer (link above) to receive the Zoom link.

Judges and other volunteers, please arrive 20 minutes before each round begins.

Mediation Scramble

Host: Principia School

JUDGES/VOLUNTEER ORIENTATION

Veterans Day Mediation Scramble

Tuesday, November 11, 3:30 pm Phoenix / 4:30 pm St Louis US/ 5:30 pm New York US / 10:30 pm London / 9:30 am Melbourne. Students who want extra practice can join this free mediation round practice with students from around the world. 

Registration

Contact

Host: Principia School

Host: Principia School

Contact us for more information:

kcalkinskeyes@gmail.com

Host: Principia School

Host: Principia School

Host: Principia School

13201 Clayton Road

St Louis, MO 63131

Resources to Help You Prepare

Learn about each component of the tournament

Learn about each component of the tournament

Learn about each component of the tournament

Teen Mediation International’s John Lag: Series of Tournament Training Sessions for Arizona Mock Mediation

Watch here

Practice an example case: CHOU v. UNI-WORLD

Learn about each component of the tournament

Learn about each component of the tournament

Practice with your team an example case today

access the case here

Student-Led Peer Mediation (SLPM) Resources

Learn about each component of the tournament

Student-Led Peer Mediation (SLPM) Resources

Check out resources from Student-Led Peer Mediation (SLPM)!

See WEBSITE HERE

Tentative Tournament Schedule

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Mediation and Negotiation Program

All are welcome regardless of mediation experience!

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