About the tournaments

In every tournament, a set of scientific problems is published each academic year and the teams are asked to solve these open-ended problems in any way they desire. All these international tournaments are composed of so called Fights (Science Fights for IYNT, Physics Fights for IYPT & YPL). Throughout the Fights, each Team meets other contestants (usually groups of 3 teams are created). These competition rounds are played in parallel all-play-all Groups. The Teams are rotated after each Fight to ensure as far as possible that no two Teams meet more than once.

Overview of a Fight

Discussion of the problems during the Fights has a form of scientific discussions. A Fight resembles a scientific seminar or a graduate thesis defense. Their performance is then graded by professional jury of research scientists and educators.

Roles In A Fight

In a Fight, the Teams switch their roles and take the floor as Reporters, Opponents, and Reviewers.

Reporter

Three Teams of 3-6 members each (depending on the tournament) are seated in a Fight Room before a panel of jurors.
The Team of Opponents challenges the Team of Reporters on one of the problems. If the challenge is accepted by the Reporters, one Team member takes the floor and presents their solution in an 8-12 minutes talk.

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Opponent

The Team of Opponents poses clarifying questions to the Reporter and briefly prepares.
A Team member of the Opposing Team takes the stage, criticizes the Report, and draws attention to possible shortcomings and errors in the understanding of the problem and in the solution.
This leads to a discussion between the Reporter and the Opponent in which the Reporter defends their results.

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Reviewer

The Team of Reviewers assesses the outcome of the debate and draws impartial conclusions.

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Jurors

The Jurors hold up their scores and the Chairperson concludes the first Stage which lasts around 50 minutes (each Fight usually consists of 3 Stages).
After a short break, second and third Stages continue, and all Teams switch their roles.

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Info about all tournaments

Information about each tournament is presented below.

HellenicYNT
6th HellenicYNT (Hellenic Young Naturalists Tournament) will be held in Thessaloniki (not final yet), 12-15 of April 2025 (April 12th arrival day for everyone, April 15th departure day for greek teams, 16th of April departure day for foreign teams).
You can find this year's set of problems here.
Starting early October, Express Science Solutions, a team of experts in scientific, inquiry-based tournaments, will prepare all Greek teams with online sessions once per week. HellenicYNT also accepts foreign teams as guests and they could also receive online help in english language.
If you are interested in participating this year, please fill the registration form bellow. Please also talk to your teachers in case your school wants to participate. You must be 12-16 years old (for example, for 2025, you must be born January 1st, 2009 and after).

BulgarianYNT
BulgarianYNT (Bulgarian Young Naturalists Tournament) is a strong mini tournament, which is hosted every year in Sofia, Bulgaria. The set of problems is the same as the HellenicYNT. There are two types of BulgarianYNT, one is usually on May, with many countries participating, and the other one is usually in July, only between Greece and Bulgaria. If you are interested in participating this year, please fill the registration form bellow.
You must be 12-16 years old (for example, for 2025, you must be born January 1st, 2009 and after).

IYNT
IYNT (International Young Naturalists Tournament) is the best, most exciting high-school tournament for Science, since 2013. Each year is hosted in a different country, and usually is contacted in July-August. If you are interested in participating this year, please fill the registration form bellow.
You must be 12-16 years old (for example, for 2025, you must be born January 1st, 2009 and after) AND you must participate in this year's HellenicYNT first.

HellenicYPT
HellenicYPT (Hellenic Young Physicists Tournament) is the process in which the Hellenic team is formed, in order to represent our country in IYPT. All contestants are trained (online) together each week on both theory and experiments, by Express Science Solutions. In January-February, HellenicYPT is contacted online in order to evaluate each one seperately. A team of 5 members is then trained together for IYPT. The set of problems is the same as the IYPT.
You can find this year's set of problems here.
If you are interested in participating this year, please fill the registration form bellow. You must be 16-18 years old (for example, for 2025, you must be born January 1st, 2007 and after).

Y.P.L.
YPL (Young Physicists League) is a new and exciting mini international IYPT-style tournament hosted by Greece, since 2024. The set of problems is the same as the IYPT. It is contacted the same dates as HellenicYNT. The diference with IYPT is that the teams play only 3 PFs and they choose the desired problems they wish to present. YPL is a god chance for foreign teams to visit Greece and also gain experience in IYPT, or just participate in an international but more friendly environment. Foreign teams are welcomed to participate. A full schedule with accommodation, 3 meals per day, transportation in Greece and excursions will be organized by us. If you are interested in participating this year, please fill the registration form bellow.
There is no age limit, since it is a good opportunity even for younger students to gain experience, or for students that didn't make it to the national team, in order to have an international experience.

BulgarianYPT
BulgarianYPT (Bulgarian Young Physicists Tournament) is a mini IYPT tournament, which is hosted every year in Sofia, Bulgaria. The set of problems is the same as the IYPT. If you are interested in participating this year, please fill the registration form bellow.
There is no age limit, since it is a good opportunity even for younger students to gain experience, or for students that didn't make it to the national team, in order to have an international experience.

IYPT
IYPT (International Young Physicists Tournament) is the best and most popular inquiry-based tournament in the world! National teams of 5 members compete each year, in so called Physics Fights, by presenting their solutions to 17 known problems, defending their solutions against the critique of other teams, question other teams' solutions and review the work of others. IYPT creates opportunities to the contestants to stand out and opens doors of respected universities all around the globe. If you are interested in participating this year, please fill the registration form bellow. You must be 16-18 years old (not turn 19 in the year of the tournament).

CupExS
CupExS (Cup of Experimental Science) is a new and exciting inquiry-based tournament! It is organized every summer in Georgia. What is great about CupExS in comparison with other inquiyry-based tournaments is the so called Experimental Race, one for Physics and one for Chemistry, where teams compete each other on an Experimental problem and they try to solve it faster or optimize it better than the others. More info here. If you are interested in participating this year, please fill the registration form bellow.

Get Involved

If you are interested in participating in any of the above mentioned tournaments, please fill the Regisrtation form bellow and we will contact you.
Registration begins in August of each year after the problems are published. Students all over Greece can register and start working on the problems.
It is not necessary that a team consists of students from the same school.
Hellenic Physical Society (EEF) is responsible for organizing the students in teams and help them through the problems.
Students of a different nationality that study in schools (private or public) in Greece have also the right to participate.

Latest News

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CupExS 2024

  • 1st and 2nd place for the Greek teams!
  • 1st place Gold D.B.M.B.
  • 2nd place Silver Overreactors
  • Batumi - Georgia
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12th IYNT 2024

  • 2 Greek teams in the Final Fight for the first time!
  • 2nd place Silver 4th Dimension
  • 3rd place Silver Cosmic Ballers
  • 4th place Bronze G.G.A.
  • 7th place Bronze Atom Avengers
  • Batumi - Georgia
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37th IYPT 2024

  • 24th place for the Greek team
  • Budapest - Hungary
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11th IYNT 2023

  • 2 Bronze Medals for Greek teams!
  • team Shockwave
  • team Casper
  • Almaty - Kazakhstan
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10th IYNT 2022

  • Bronze Medal for Greek Team!
  • team LaGrands
  • Tiblisi - Georgia
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9th IYNT 2021

  • 2 Bronze Medals for Greek Teams!
  • team Fryganiotis
  • team Alliance (Anatolia, Raptou, Hellenic College)
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8th IYNT 2020

  • 3 Bronze Medals for Greek Teams!
  • team Fryganiotis
  • team Anatolia College
  • team Pinewood

Contact Information