| World Championships all-time decathlon records | |||||
| Event | Result | Decathlete | Nation | Points | Venue |
| 100 m | 10,23 (-0.4) | Ashton Eaton | USA | 9045 | Beijing 2015 |
| Long jump | 8.07 (+0.9) | Tomaš Dvorak | CZE | 8902 | Edmonton 2001 |
| Shot put | 17.54 | Michael Smith | CAN | 8307 | Athens 1997 |
| High jump | 2.25 | Christian Schenk | GDR | 8304 | Roma 1987 |
| 400 m | 45,00 WB | Ashton Eaton | USA | 9045 | Beijing 2015 |
| 110 m hurdles | 13,55 (+0.8) | Frank Busemann | GER | 8652 | Athens 1997 |
| Discus throw | 56.15 | Leo Neugebauer | GER | 8804 | Tokyo 2025 |
| Pole vault | 5.50 | Sebastien Levicq | FRA | 8524 | Sevilla 1999 |
| Javelin throw | 79.05 | Niklas Kaul | GER | 8691 | Doha 2019 |
| 1500 m | 4.11,82 | Beat Gähwiler | SUI | 8011 | Tokyo 1991 |
| 1st day | 4707 | Kyle Garland | USA | 8703 | Tokyo 2025 |
| 10,51 - 7.92 - 17.02 - 2.11 - 48,73 | |||||
| 2nd day | 4527 | Niklas Kaul | GER | 8691 | Doha 2019 |
| 14,64 - 49.20 - 5.00 - 79.05 - 4.15,70 | |||||
| Running events | 3944 WB | Ashton Eaton | USA | 9045 | Beijing 2015 |
| 10,23 - 45,00 - 13,69 - 4.17,52 | |||||
| Jumping events | 2923 | Maicel Uibo | EST | 8604 | Doha 2019 |
| 7.46 - 2.17 - 5.40 | |||||
| Throwing events | 2734 | Bryan Clay | USA | 8732 | Helsinki 2005 |
| 16.25 - 53.68 - 72.00 | |||||
| Decathlon | 9045 WR | Ashton Eaton | USA | 9045 | Beijing 2015 |
| 10,23 - 7.88 - 14.52 - 2.01 - 45,00 - 13,69 - 43.34 - 5.20 - 63.63 - 4.17,52 | |||||
| World Championships all-time decathlon champions | |||
| Championships | Decathlete | Nation | Points |
| Helsinki 1983 | Daley Thompson | GBR | 8714 CR |
| Roma 1987 | Torsten Voss | GDR | 8680 |
| Tokyo 1991 | Dan O’Brien | USA | 8812 NR CR |
| Stuttgart 1993 | Dan O’Brien | USA | 8817 CR |
| Göteborg 1995 | Dan O’Brien | USA | 8695 |
| Athens 1997 | Tomaš Dvorak | CZE | 8837 NR CR |
| Sevilla 1999 | Tomaš Dvorak | CZE | 8744 |
| Edmonton 2001 | Tomaš Dvorak | CZE | 8902 CR |
| Paris 2003 | Tom Pappas | USA | 8750 |
| Helsinki 2005 | Bryan Clay | USA | 8732 |
| Osaka 2007 | Roman Šebrle | CZE | 8676 |
| Berlin 2009 | Trey Hardee | USA | 8790 |
| Daegu 2011 | Trey Hardee | USA | 8607 |
| Moscow 2013 | Ashton Eaton | USA | 8809 |
| Beijing 2015 | Ashton Eaton | USA | 9045 WR |
| London 2017 | Kevin Mayer | FRA | 8768 |
| Doha 2019 | Niklas Kaul | GER | 8691 |
| Eugene 2022 | Kevin Mayer | FRA | 8816 |
| Budapest 2023 | Pierce LePage | CAN | 8909 |
| Tokyo 2025 | Leo Neugebauer | GER | 8804 |
| World Championships all-time decathlon medal table | ||||||
| Country | Nation | Flag | Gold | Silver | Bronze | Total |
| USA | USA | 9 | 1 | 3 | 13 | |
| Czech Republic | CZE | 4 | 2 | - | 6 | |
| Germany | GER | 2 | 2 | 5 | 9 | |
| France | FRA | 2 | - | - | 2 | |
| Canada | CAN | 1 | 4 | 3 | 8 | |
| Great Britain | GBR | 1 | 1 | 1 | 3 | |
| East Germany | GDR | 1 | - | - | 1 | |
| West Germany | FRG | - | 2 | 1 | 3 | |
| Estonia | EST | - | 2 | - | 2 | |
| Belarus | BLR | - | 2 | - | 2 | |
| Cuba | CUB | - | 1 | 1 | 2 | |
| Finland | FIN | - | 1 | - | 1 | |
| Jamaica | JAM | - | 1 | - | 1 | |
| Puerto Rico | PUR | - | 1 | - | 1 | |
| Kazakhstan | KAZ | - | - | 2 | 2 | |
| Soviet Union | URS | - | - | 1 | 1 | |
| Hungary | HUN | - | - | 1 | 1 | |
| Ukraine | UKR | - | - | 1 | 1 | |
| Grenada | GRN | - | - | 1 | 1 | |
WR – world record
NR – national record
CR – championship record
WB – world best