| Event: | Men's decathlon |
| Competition: | 2018 World U20 Championships |
| Venue: | Ratina Stadium |
| Dates: | 10–11 July |
| Competitors: | 14 |
| Nations: | 10 |
| Win Label: | Winning points |
| Win Value: | 8190 |
| Gold: | Ashley Moloney |
| Goldnoc: | AUS |
| Silver: | Gary Haasbroek |
| Silvernoc: | AUS |
| Bronze: | Simon Ehammer |
| Bronzenoc: | SUI |
| Prev: | 2016 |
| Next: | 2021 |
The men's decathlon at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 10 and 11 July.[1]
| Standing records prior to the 2018 IAAF World U20 Championships in Athletics | |||||
|---|---|---|---|---|---|
| World U20 Record | 8435 | Grosseto, Italy | 23 July 2017 | ||
| Championship Record | 8162 | Bydgoszcz, Poland | 20 July 2016 | ||
| World U20 Leading | 7817 | Adler, Russia | 21 May 2018 | ||
| Rank | Athlete | Nationality | 100m | 400m | 1500m | Points | Notes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left |  | 10.51 | 7.06 | 12.83 | 2.10 | 46.86 | 14.13 | 47.39 | 4.60 | 53.67 | 4:42.65 | 8190 | CR, OCU20R, | ||||
| align=left | | 10.92 | 7.26 | 13.28 | 2.01 | 49.20 | 14.26 | 40.54 | 4.30 | 55.25 | 4:35.48 | 7798 | |||||
| align=left | 11.14 | 7.45 | 13.44 | 2.01 | 50.15 | 14.13 | 36.22 | 4.70 | 49.09 | 4:47.36 | 7642 | ||||||
| Manuel Wagner | 11.08 | 6.81 | 12.01 | 1.83 | 49.72 | 14.72 | 44.74 | 4.50 | 57.43 | 4:29.45 | 7552 | ||||||
| Finley Gaio | 10.97 | 7.28 | 14.58 | 1.86 | 49.94 | 13.90 | 36.96 | 4.30 | 48.65 | 4:55.46 | 7455 | ||||||
| Leon Okafor |  | 11.41 | 6.62 | 14.03 | 1.92 | 50.27 | 14.98 | 44.63 | 4.50 | 56.44 | 4:46.50 | 7454 | |||||
| Kyle Garland |  | 10.97 | 6.40 | 15.11 | 2.01 | 50.59 | 13.99 | 42.56 | 4.00 | 53.00 | 4:58.42 | 7451 | |||||
| Andreas Bechmann | 11.30 | 6.81 | 14.17 | 1.92 | 48.92 | 14.97 | 42.74 | 4.40 | 41.96 | 4:43.48 | 7333 | ||||||
| Manuel Dias | 11.23 | 6.93 | 12.86 | 1.83 | 49.81 | 15.06 | 37.64 | 4.60 | 46.82 | 4:40.25 | 7212 | ||||||
| 10 | Juuso Toivonen |  | 11.41 | 6.66 | 12.12 | 1.98 | 50.67 | 15.42 | 32.11 | 4.80 | 51.67 | 4:43.53 | 7113 | ||||
| 11 | Stepan Kekin | 11.06 | 6.90 | 14.25 | 1.83 | 50.81 | 14.19 | 48.65 | 4.60 | 50.11 | 6984 | ||||||
| 12 | align=left | 10.67 | 6.94 | 13.71 | 1.92 | 13.74 | 42.72 | 4.30 | 43.06 | 4:44.76 | 6744 | ||||||
| align=left | align=left |  | 10.82 | 6.98 | 16.03 | 1.98 | |||||||||||
| align=left | align=left | | 11.08 | 6.91 | 12.86 | 1.92 |