International Young Physicists' Tournament

The International Young Physicists' TournamentThe International Young Physicists' Tournament (IYPT), sometimes referred to as "Physics World Cup", is a team-oriented competition between secondary school students.


The Tournament has grown since its establishment in 1988, from a Soviet-based Russian-language competition, into one of the World’s largest and most prestigious international physics contests with nations from all regions of the World competing annually.

The Regulations of the International
Young Physicists’ Tournament
I.International Young Physicists’ Tournament
The International Young Physicists’ Tournament (IYPT) is a competition among teams of
secondary school students in their ability to solve complicated scientific problems, to present
solutions to these problems in a convincing form and to defend them in scientific discussions,
called Physics Fights (PF).
II.The problems of the IYPT
The 17 problems are formulated by the International Organizing Committee (IOC) and sent to
the participating countries not later than in October. These problems may be used in any
competition that could lead to selection of a national team. They may be used in International
tournaments that involve foreign teams not taking part in IYPT.
III.The participants of the IYPT
1. The national teams
Any invited country, as well as the host country, is represented by one team. A country
can only take part in the IYPT if it is nominated and accompanied either by the country’s
IOC representative or by the representative of a candidate IMO.
2. The membership of the teams
A team is composed of five secondary school students. All members of the team must
either be citizens of the country they represent, or be enrolled as students in a school of
the country they represent. Secondary school graduates can participate in the IYPT in the
year of their graduation. The participation of university students is not allowed. The
LOC may allow participation of teams of four or three students. The composition of the
team cannot be changed during the Tournament. The team is headed by a Captain who is
the official representative of the team during the PFs.
3. The team is accompanied by one or two team leaders.
IV.The Jury
The Jury is nominated and organized by the LOC in cooperation with EC. The Jury consists
of at least five members, if possible from different countries. Team leaders, at least one from
each team, are included in the Jury. The team leaders cannot be members of the Jury in the PF
where their teams participate and should not, if possible, grade the same team more than
twice.V.The agenda of the IYPT
The IYPT is carried out in a period determined by the LOC (from May to July).
All teams participate in five Selective PFs. Selective PFs are carried out according to a fixed
schedule as detailed in the attachment to these Regulations. Numbers are ascribed to teams by
lot. The best teams participate in the Final PF.
The host country provides a cultural program for the participants.
VI.The Physics Fight regulations
Three or four teams participate in a PF, depending on the total number of teams. In the course
of a PF the members of a team communicate only with each other.
Before the beginning of a PF, the Jury and the teams are introduced.
The PF is carried out in three (or four) Stages. In each Stage, a team plays one of the three
(four) roles: Reporter, Opponent, Reviewer (Observer). In the subsequent Stages of the PF,
the teams change their roles according to the schemes:
Three teams PF Four teams PF
Stage 1 2 3 Stage 1 2 3 4
Team Team
1 Rep Rev Opp 1 Rep Obs Rev Opp
2 Opp Rep Rev 2 Opp Rep Obs Rev
3 Rev Opp Rep 3 Rev Opp Rep Obs
4 Obs Rev Opp Rep
VII.The Stage regulations
The performance order in the Stage of a PF: Reserved time in minutes
The Opponent challenges the Reporter for the problem . . . . . . . . . 1
The Reporter accepts or rejects the challenge . . . . . . . . . . . . . . . . . 1
Preparation of the Reporter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Presentation of the report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Questions of the Opponent to the Reporter
and answers of the Reporter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preparation of the Opponent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
The Opponent takes the floor, maximum 4 min.
and discussion between the Reporter and the Opponent . . . . . . . . . 14
The Opponent summarizes the discussion . . . . . . . . . . . . . . . . . . . . 1
Questions of the Reviewer to the Reporter
and the Opponent and answers to the questions . . . . . . . . . . . . . . . . 3
Preparation of the Reviewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The Reviewer takes the floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Concluding remarks of the Reporter . . . . . . . . . . . . . . . . . . . . . . . . 2
Questions of the Jury . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
In the Final PF the procedure of challenge is omitted.
The official language of the IYPT is English.VIII.The team performance in the Stages
The Reporter presents the essence of the solution to the problem, attracting the attention of
the audience to the main physical ideas and conclusions.
The Opponent puts questions to the Reporter and criticizes the report, pointing to possible
inaccuracy and errors in the understanding of the problem and in the solution. The Opponent
analyses the advantages and drawbacks of both the solution and the presentation of the
Reporter. The discussion of the Opponent should not become a presentation of his/her own
solution. In the discussion, the solution presented by the Reporter is discussed.
The Reviewer presents a short estimation of the presentations of Reporter and Opponent.
The Observer does not participate actively in the PF.
During one PF only one member of a team takes the floor as Reporter, Opponent or
Reviewer; other members of the team are allowed to make brief remarks or to help with the
presentation technically. No member of a team may take the floor more than twice during one
Selective PF or, as Reporter, more than three times in total during all Selective PFs. During
the Final PF any team member can take the floor only once.
The LOC must inform about the devices available for presentations not later than two months
before the IYPT.
IX.The rules of problem-challenge and rejection
1. All problems presented in the same PF must be different.
2. Selective PF
The Opponent may challenge the Reporter on any problem with the exception for a
problem that:
a) was rejected by the Reporter earlier;
b) was presented by the Reporter earlier;
c) was opposed by the Opponent earlier;
d) was presented by the Opponent earlier.
If there are less than five problems left to challenge, the bans d), c), b), a) are
successively removed, in that order.
During the Selective PFs the Reporter may reject the challenge of three different
problems in total without penalty. For every subsequent rejection the coefficient of the
Reporter (see section X) is decreased by 0.2. This reduction continues to apply during
the following selective PFs. The maximal number of different problems a team is
allowed to reject during the whole competition is 8.
The following special rules apply to the last Selective PF:
• The procedure of challenge is omitted. All teams may choose the problem to
present. The only exception is that a team may not present a problem, which they
presented earlier in the Selective Fights, and all problems presented in one group
must be different. In case teams of one group choose the same problem, priority
is given to the team with the higher TSP (see section XI).
• Teams must choose their problems for the last Selective Fight at the end of the
preceding Selective Fight. The choice must be made public immediately.
• The problem which a team presents in this PF may not be presented again in the
Final PF by the same team.
3. Final PF
Within four hours after the announcement of the results of the Selective PFs the teams
participating in the Final choose their problems. In case teams choose the same problem, priority is given according to the order of presentation in the Final (see section
XII). The choice should be made public immediately.
X.The grading
After each stage the Jury grades the teams, taking into account all presentations of the
members of the team, questions and answers to the questions, and participation in the
discussion. Each Jury member shows integer marks from 1 to 10. The mean of the highest and
the lowest marks is counted as one mark which is then added to the remaining marks. This
sum is used to calculate the mean mark for the team. The mean marks are multiplied by
various coefficients: 3.0 or less (see section IX) for the Reporter, 2.0 for the Opponent, 1.0 for
the Reviewer and then transformed into points.
XI.The resulting parameters
1. For a team in the PF
The sum of points (SP) is the sum of mean marks, multiplied by the corresponding
coefficients and rounded to one decimal.
2. For a team in the Tournament
The total sum of points (TSP) equals the sum of SP of the team in all Selective PFs. The
number of fights won (FW) is the number of Selective PFs, in which a team received
the highest SP from all three or four teams participating in the same PFs.
XII.The Final
The three teams having the highest TSP in the Selective PFs participate in the Final. In case
teams have equal TSP, their participation in the Final is decided by FW. If team(s) winning all
their Selective PFs (FW=5) did not reach the Final by TSP, the best of them (determined by
TSP) takes part in the final as fourth team.
The order of presentation in the Final is determined by position by entering the final: the
higher the position, the higher the number in the scheme of section VI.
XIII.The final team ranking of the IYPT
Students in the top half (rounded up) of participating teams receive medals. The students of
the team winning the Final are awarded the winners’ cup. If two or three teams have the same
SP result in the Final, the winner is nominated according to the highest TSP, in case of
equality by FW. All teams participating in the final are awarded 1st place certificates and gold
medals. The five best teams not participating in the final are awarded 2nd place certificates
and silver medals. 3rd place certificates and bronze medals are awarded to students in all other
teams finishing in the top half. All other students receive certificates of participation. Team
leaders obtain certificates indicating the ranking of their team.
XIV.The status of the regulations of the IYPT
The regulations are established by the IOC and may be changed only by the IOC.