| Austria 1 (Boys Squad 01 | Startlane: 15 | Next lanes: 11, 33, 29, 25, 21) |
| Athlete 1: Kai-Jürgen Eder Jun. |
| Athlete 2: Gregory Gabrielian |
| Coach: Ivonne Groß |
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Austria 2 (Boys Squad 02 | Startlane: 29 | Next lanes: 25, 21, 17, 13, 33) |
| Athlete 1: Dominic Groß |
| Athlete 2: Fabian Groß |
| Coach: Ivonne Groß |
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Belgium 1 (Boys Squad 01 | Startlane: 23 | Next lanes: 19, 15, 11, 33, 29) |
| Athlete 1: Wout Wouters |
| Athlete 2: William Dillen |
| Coach: Véronique Perniaux |
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Belgium 2 (Boys Squad 02 | Startlane: 19 | Next lanes: 15, 11, 31, 27, 23) |
| Athlete 1: Tuur Vercauteren |
| Athlete 2: Gabin Roman |
| Coach: Mélissa Vallons |
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Croatia 1 (Boys Squad 01 | Startlane: 17 | Next lanes: 13, 9, 31, 27, 23) |
| Athlete 1: Ian Jambrović |
| Athlete 2: Marko Kovačević |
| Coach: Igor Habljak |
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Croatia 2 (Boys Squad 02 | Startlane: 26 | Next lanes: 30, 34, 14, 18, 22) |
| Athlete 1: Jakov Kovačević |
| Athlete 2: Vedran Barunčić |
| Coach: Igor Habljak |
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Czech Republic 1 (Boys Squad 01 | Startlane: 32 | Next lanes: 10, 14, 18, 22, 26) |
| Athlete 1: Jakub Sedláček |
| Athlete 2: David Mojka |
| Coach: Ivan Burian |
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Czech Republic 2 (Boys Squad 02 | Startlane: 17 | Next lanes: 13, 33, 29, 25, 21) |
| Athlete 1: Jaroslav Zapletal |
| Athlete 2: Ondrej Prekop |
| Coach: Ivan Burian |
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Denmark 1 (Boys Squad 01 | Startlane: 26 | Next lanes: 30, 34, 12, 16, 20) |
| Athlete 1: Magnus Rehnquist |
| Athlete 2: Benjamin Kjærsgaard Kristensen |
| Coach: Kasper Astrup Johansen |
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Denmark 2 (Boys Squad 02 | Startlane: 27 | Next lanes: 23, 19, 15, 11, 31) |
| Athlete 1: David Günther |
| Athlete 2: Tobias Kastfelt Bryde |
| Coach: Jimmy Dan Mortensen |
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England 1 (Boys Squad 01 | Startlane: 21 | Next lanes: 17, 13, 9, 31, 27) |
| Athlete 1: Frank Stephenson |
| Athlete 2: Kallum Peach |
| Coach: Callum Simons |
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England 2 (Boys Squad 02 | Startlane: 22 | Next lanes: 26, 30, 34, 14, 18) |
| Athlete 1: Louie Dawson |
| Athlete 2: Charlie Upton |
| Coach: Tristan Hinchliffe |
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Estonia 1 (Boys Squad 01 | Startlane: 34 | Next lanes: 12, 16, 20, 24, 28) |
| Athlete 1: Kert Isakar |
| Athlete 2: Kermo Porovardja |
| Coach: Priit Alep |
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Estonia 2 (Boys Squad 02 | Startlane: 13 | Next lanes: 33, 29, 25, 21, 17) |
| Athlete 1: Robin Miklas |
| Athlete 2: Karl Martin Veiderpass |
| Coach: Priit Alep |
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Finland 1 (Boys Squad 01 | Startlane: 25 | Next lanes: 21, 17, 13, 9, 31) |
| Athlete 1: Antonio Valtonen |
| Athlete 2: Nooa Vilokkinen |
| Coach: Juha Immonen |
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Finland 2 (Boys Squad 02 | Startlane: 23 | Next lanes: 19, 15, 11, 31, 27) |
| Athlete 1: Jussi Laine |
| Athlete 2: Markus Lahti |
| Coach: Juha Immonen |
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France 1 (Boys Squad 01 | Startlane: 31 | Next lanes: 27, 23, 19, 15, 11) |
| Athlete 1: Timeo Dujardin |
| Athlete 2: Alexandre Pedejouan |
| Coach: Patrice Serradeil |
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France 2 (Boys Squad 02 | Startlane: 34 | Next lanes: 14, 18, 22, 26, 30) |
| Athlete 1: Raphael Durivault |
| Athlete 2: Thomas Laymet Carre |
| Coach: Patrice Serradeil |
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Germany 1 (Boys Squad 01 | Startlane: 20 | Next lanes: 24, 28, 32, 10, 14) |
| Athlete 1: Robin Reincke |
| Athlete 2: Phil Baumeister |
| Coach: Tobias Gäbler |
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Germany 2 (Boys Squad 02 | Startlane: 25 | Next lanes: 21, 17, 13, 33, 29) |
| Athlete 1: Max Lorenz |
| Athlete 2: Shane Wanzke |
| Coach: Tobias Gäbler |
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Iceland 1 (Boys Squad 01 | Startlane: 19 | Next lanes: 15, 11, 33, 29, 25) |
| Athlete 1: Matthías Leó Sigurðsson |
| Athlete 2: Ásgeir Karl Gústafsson |
| Coach: Mark Heathorn |
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Iceland 2 (Boys Squad 02 | Startlane: 16 | Next lanes: 20, 24, 28, 32, 12) |
| Athlete 1: Tristan Máni Nínuson |
| Athlete 2: Mikael Aron Vilhelmsson |
| Coach: Mark Heathorn |
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Ireland 1 (Boys Squad 01 | Startlane: 18 | Next lanes: 22, 26, 30, 34, 12) |
| Athlete 1: Colum Staines |
| Athlete 2: Dillon Mckeown |
| Coach: David Stains |
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Italy 1 (Boys Squad 01 | Startlane: 28 | Next lanes: 32, 10, 14, 18, 22) |
| Athlete 1: Christian Forte |
| Athlete 2: David Giantomassi |
| Coach: Claudio Valentini |
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Italy 2 (Boys Squad 02 | Startlane: 33 | Next lanes: 29, 25, 21, 17, 13) |
| Athlete 1: Gabriele Caiti |
| Athlete 2: Marco Rosellini |
| Coach: Claudio Valentini |
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Lithuania 1 (Boys Squad 01 | Startlane: 33 | Next lanes: 29, 25, 21, 17, 13) |
| Athlete 1: Joris Remeika |
| Athlete 2: Emilijus Grigoraitis |
| Coach: Andrius Gasparavicius |
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Malta 1 (Boys Squad 01 | Startlane: 11 | Next lanes: 33, 29, 25, 21, 17) |
| Athlete 1: Nicolai Mallia |
| Athlete 2: Kayden Lagana |
| Coach: Mark Spiteri |
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Malta 2 (Boys Squad 02 | Startlane: 11 | Next lanes: 31, 27, 23, 19, 15) |
| Athlete 1: Chris Fenech |
| Athlete 2: Julian Baldacchino |
| Coach: Mark Spiteri |
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Netherlands 1 (Boys Squad 01 | Startlane: 27 | Next lanes: 23, 19, 15, 11, 33) |
| Athlete 1: Milan Kunst |
| Athlete 2: Radin Alizade |
| Coach: Jord Van Weeren |
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Netherlands 2 (Boys Squad 02 | Startlane: 31 | Next lanes: 27, 23, 19, 15, 11) |
| Athlete 1: Lucas Dollevoet |
| Athlete 2: Floris Dollevoet |
| Coach: Jord Van Weeren |
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Norway 1 (Boys Squad 01 | Startlane: 22 | Next lanes: 26, 30, 34, 12, 16) |
| Athlete 1: Christian Danielsen Otting |
| Athlete 2: Tian Solum Vallestad |
| Coach: Joakim Biehl |
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Norway 2 (Boys Squad 02 | Startlane: 20 | Next lanes: 24, 28, 32, 12, 16) |
| Athlete 1: Magnus Haram Mittet |
| Athlete 2: Mathias Danielsen Otting |
| Coach: Joakim Biehl |
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Poland 1 (Boys Squad 01 | Startlane: 12 | Next lanes: 16, 20, 24, 28, 32) |
| Athlete 1: Tymon Zboralski |
| Athlete 2: Daniel Krajewski |
| Coach: Iga Ryngwelska |
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Poland 2 (Boys Squad 02 | Startlane: 12 | Next lanes: 16, 20, 24, 28, 32) |
| Athlete 1: Patryk Dudziński |
| Athlete 2: Patryk Antosiak |
| Coach: Iga Ryngwelska |
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Romania 1 (Boys Squad 01 | Startlane: 9 | Next lanes: 31, 27, 23, 19, 15) |
| Athlete 1: Adrian Balos |
| Athlete 2: Radu-Gabriel Tufan |
| Coach: Marius Piticariu |
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Romania 2 (Boys Squad 02 | Startlane: 21 | Next lanes: 17, 13, 33, 29, 25) |
| Athlete 1: Mihai-Alin Dragnia |
| Athlete 2: Mate Balazs-Becsi |
| Coach: Marius Piticariu |
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Scotland 1 (Boys Squad 01 | Startlane: 29 | Next lanes: 25, 21, 17, 13, 9) |
| Athlete 1: Thomas Carver |
| Athlete 2: Kevin Shaw |
| Coach: Calvin Murray |
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Scotland 2 (Boys Squad 02 | Startlane: 32 | Next lanes: 12, 16, 20, 24, 28) |
| Athlete 1: Aaron Claxton |
| Athlete 2: Ben Wallace |
| Coach: James Claxton |
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Slovakia 1 (Boys Squad 01 | Startlane: 10 | Next lanes: 14, 18, 22, 26, 30) |
| Athlete 1: Lukas Spacek |
| Athlete 2: Filip Juhas |
| Coach: Costas Mitsingas |
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Slovakia 2 (Boys Squad 02 | Startlane: 24 | Next lanes: 28, 32, 12, 16, 20) |
| Athlete 1: Matus Hrusovsky |
| Athlete 2: David Barak |
| Coach: Costas Mitsingas |
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Slovenia 1 (Boys Squad 01 | Startlane: 30 | Next lanes: 34, 12, 16, 20, 24) |
| Athlete 1: Tomo Gaber Pinteric |
| Athlete 2: Adrian Gal Del Piero |
| Coach: Robert Godnic |
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Spain 1 (Boys Squad 01 | Startlane: 13 | Next lanes: 9, 31, 27, 23, 19) |
| Athlete 1: Daniel Aguilar |
| Athlete 2: Jensen Bourricaudy |
| Coach: Luz Adriana Leal |
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Sweden 1 (Boys Squad 01 | Startlane: 24 | Next lanes: 28, 32, 10, 14, 18) |
| Athlete 1: Albin Gullstrand |
| Athlete 2: Robin Noberg |
| Coach: Robin Skans |
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Sweden 2 (Boys Squad 02 | Startlane: 14 | Next lanes: 18, 22, 26, 30, 34) |
| Athlete 1: Carl Eklund |
| Athlete 2: Emil Svensson |
| Coach: Robin Skans |
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Switzerland 1 (Boys Squad 01 | Startlane: 14 | Next lanes: 18, 22, 26, 30, 34) |
| Athlete 1: Alessandro Ambauen |
| Athlete 2: Luca Zen |
| Coach: Dario Ancarani |
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Switzerland 2 (Boys Squad 02 | Startlane: 18 | Next lanes: 22, 26, 30, 34, 14) |
| Athlete 1: Leandro Keel |
| Athlete 2: Tobias Klingler |
| Coach: Dario Ancarani |
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Turkey 1 (Boys Squad 01 | Startlane: 16 | Next lanes: 20, 24, 28, 32, 10) |
| Athlete 1: Ömer Faruk Kul |
| Athlete 2: Muhammed Yasir Kul |
| Coach: Ümit Yıldırım |
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Turkey 2 (Boys Squad 02 | Startlane: 28 | Next lanes: 32, 12, 16, 20, 24) |
| Athlete 1: Cemal Batu Pinar |
| Athlete 2: Tuna Böncü |
| Coach: Gediz Ege |
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Ukraine 1 (Boys Squad 02 | Startlane: 30 | Next lanes: 34, 14, 18, 22, 26) |
| Athlete 1: Viktor Miroshnychenko |
| Athlete 2: Andrii Gadiatskyi |
| Coach: Iurii Grynyk |
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