| U20 European Championships decathlon records of all-time |
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| Event | Result | Decathlete | Nation | Points | Venue |
| 100 m (<=2.0 m/s) | 10,65 (-1.0) | Jaakko Ojaniemi | FIN | 7763 | Riga 1999 |
| 100 m (>2.0 m/s) | 10,31 (+3.5) | Roko Farkaš | CRO | 7220 | Jerusalem 2023 |
| Long jump | 7.73 (+1.8) | Ladji Doucoure |
FRA | 7747* | Grosseto 2001 |
| Shot put (6 kg) | 16.68 | Ludovic Besson |
FRA | 7823 | Grosseto 2017 |
| Shot put (7.26 kg) | 15.27 | Michael Kohnle | FRG | 8114* | Varaždin 1989 |
| High jump | 2.17 | Mauri Kaattari | FIN | 7427 | Kaunas 2005 |
| 400 m | 46,21 | Hubert Trościanka |
POL | 8514 | Tampere 2025 |
| 110 m hurdles (99 cm) | 13,57 (-0.1) | Simon Ehammer | SUI | 7851 | Boras 2019 |
| 110 m hurdles (107 cm) | 13,87 (-1.2) | Ladji Doucoure |
FRA | 7747* | Grosseto 2001 |
| Discus throw (1.75 kg) | 54.75 | Jan Doležal | CZE | 7929 | Eskilstuna 2015 |
| Discus throw (2.0 kg) | 48.74 | Valter Külvet | URS | 7880* | Schwechat 1983 |
| Pole vault | 5.10 | Amadeus Gräber | GER | 8209 | Jerusalem 2023 |
| Javelin throw | 68.87 | Hubert Trościanka |
POL | 8514 | Tampere 2025 |
| 1500 m | 4.09,09 | Benjamin Fenrich |
FRA | 7009 | Novi Sad 2009 |
| 1st day | 4361 | Hubert Trościanka |
POL | 8514 | Tampere 2025 |
| 10,74 - 7.26 - 15.48 - 1.94 - 46,21 | |||||
| 2nd day | 4265 | Niklas Kaul | GER | 8435 | Grosseto 2017 |
| 14,55 - 48.49 - 4.70 - 68.05 - 4.15,52 | |||||
| Running events | 3558 | Andrin Huber | SUI | 8009 | Jerusalem 2023 |
| 10,82 - 48,37 - 14,14 - 4.20,40 | |||||
| Running events | 3495 | Ladji Doucoure | FRA | 7747* | Grosseto 2001 |
| 10,77 - 47,99 - 13,87* - 4.39,67 | |||||
| Jumping events | 2689 | Yevgeniy Likhanov |
RUS | 7975 | Rieti 2013 |
| 7.54 - 2.13 - 4.70 | |||||
| Throwing events | 2514 | Karel Tilga | EST | 8002 | Grosseto 2017 |
| 15.56 - 49.34 - 66.30 | |||||
| Throwing events | 2340 | Michael Kohnle | FRG | 8114* | Varaždin 1989 |
| 15.27* - 45.82* - 60.82 | |||||
| Decathlon | 8514 | Hubert Trościanka |
POL | 8514 | Tampere 2025 |
| 10,74 - 7.26 - 15.48 - 1.94 - 46,21 - 14,23 - 43.36 - 4.80 - 68.87 - 4.28,59 | |||||
* - senior implements (shot 7.26 kg, 110m hurdles 107 cm, discus 2.0 kg)
U20 implements shot 6.0 kg and discus 1.75 kg introduced in 2002. 110m hurdles 99 cm introduced in 2006