The men's decathlon at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 28 and 29 August.

The winning margin was 350 points which as of 2024 is the only time the decathlon has been won by more than 300 points at these championships.

The overwhelming favorite here had to be the World Record Holder, Olympic Champion and defending Champion, Ashton Eaton. This was Eaton's first decathlon of the year. American Trey Hardee entered as the world leader. Pan American Games and Commonwealth Games champion and returning bronze medalist Damian Warner and returning silver medalist and Götzis winner Michael Schrader were also medal contenders.

Eaton won the first event, the 100 metres in 10.23, a World Championship Decathlon best and #139 in the world, but slightly off world record pace. Warner, Rico Freimuth, and Felipe Dos Santos were right behind him in that fourth heat. In the long jump, again Eaton led, his 7.88 slightly off world record pace and behind his seasonal best but still equal to the #93 jump in the world. Schrader was the second-best jumper of the day but Dos Santos held on to third place.

Freimuth took over third place by winning the shot put in 15.50, Eaton's 14.52 a foot improvement over world record pace. A 2.10 high jump moved Kurt Felix into third position, while Eaton's 2.01 lost a little ground to the world record.

In the 400 metres, Eaton set a World Decathlon Best at 45.00 seconds. It was equal to the #34 time in the world. This was Eaton's third World Decathlon Best after the 100 metres and Long Jump he set during his world record in Eugene in 2012. The 400 was also a 1.70 second improvement over his world record pace. Freimuth moved back into third place.

At the end of the first day, Eaton held a 173-point advantage over Warner, with three Germans, Freimuth, Kai Kazmirek and Schrader bunched behind.

The second day began with Warner running the 110 metres hurdles in 13.63, equal to the #100 time in the world, with Eaton right with him in 13.69 (#110 in the world) and Freimuth next in the same race. Eaton only gained .01 over record pace.

Freimuth won the discus with a 50.17, Eaton's 43.34 gained a half a metre on the world record. Eaton's 5.20 pole vault lost 10 cm to the world record, Ilya Shkurenyov used the same height to move up to fourth place. But the world record became a possibility when Eaton's 63.63 season best improved almost 5 meters on his world record pace. Simply a solid 1500 metres could do it.

In the 1500, Eaton had a perfect pace set by Larbi Bourrada who was in the process of setting the African Record, tying up at the end he crossed in 4:17.52, 3 seconds slower than Eugene but good enough for a 6-point world record improvement. 350 points behind, Warner improved upon his Canadian Record for silver. Freimuth continued to the bronze, Bouraada got fifth place with his record and in eighth place Felix improved his Grenadian National Record.

Records Prior to the competition, the records were as follows:

World record9039Eugene, OR, United States23 June 2012Championship record8902Edmonton, Canada7 August 2001World leading8725 Eugene, OR, United States26 June 2015African record8398 Götzis, Austria31 May 2015Asian record8725Athens, Greece24 August 2004North, Central American and Caribbean record9039Eugene, OR, United States23 June 2012South American record8393São Paulo, Brazil8 June 2013European record9026Götzis, Austria27 May 2001Oceanian record8490Kuala Lumpur, Malaysia18 September 1998The following records were established during the competition:World record9045Beijing, China 29 August 2015Championship recordWorld leadingNorth, Central American and Caribbean recordAfrican record8461

Qualification standards Entry standards 8075

Schedule Date Time Round28 August 2015 09:00 100 metres28 August 2015 10:05 Long jump28 August 2015 11:55 Shot put28 August 2015 16:15 High jump28 August 2015 20:20 400 metres29 August 2015 09:00 110 metres hurdles29 August 2015 10:05 Discus throw29 August 2015 13:15 Pole vault29 August 2015 17:00 Javelin throw29 August 2015 20:10 1500 metres

Results 100 metres The 100 metres was held on 28 August at 09:00.

Rank Heat Athlete Nationality Result Points Notes 1 4 Ashton Eaton 10.23 1040 2 4 Damian Warner 10.31 1020 3 4 Rico Freimuth 10.51 973 4 4 Felipe dos Santos 10.53 968 5 4 Trey Hardee 10.56 961 6 3 Eelco Sintnicolaas 10.62 947 7 3 Oleksiy Kasyanov 10.73 922 8 3 Yordanis García 10.77 912 9 4 Michael Schrader 10.78 910 10 4 Zachery Ziemek 10.81 903 11 3 Larbi Bourrada 10.83 899 12 4 Akihiko Nakamura 10.86 892 13 3 Kai Kazmirek 10.90 883 14 3 Luiz Alberto de Araújo 10.92 878 15 2 Willem Coertzen 10.98 865 16 2 Jorge Ureña 10.99 863 17 2 Ilya Shkurenyov 11.01 858 18 2 Kurt Felix 11.02 856 19 3 Jeremy Taiwo 11.06 847 20 2 Paweł Wiesiołek 11.07 845 21 1 Adam Helcelet 11.09 841 22 2 Pieter Braun 11.11 836 23 2 Bastien Auzeil 11.22 812 24 1 Maicel Uibo 11.25 806 25 1 Pau Tonnesen 11.26 804 26 1 Niels Pittomvils 11.39 776 27 1 Thomas van der Plaetsen 11.44 765 28 1 Janek Õiglane 11.51 750 28 1 Keisuke Ushiro 11.51 750

Long jump The long jump was held on 28 August at 10:05.

Rank Group Athlete Nationality No. 1 No. 2 No. 3 Result Points Notes Overall Overall Rank 1 A Ashton Eaton 7.88 7.62 7.88 1030 2070 1 2 A Michael Schrader 7.71 7.71 7.71 987 1897 5 3 B Kurt Felix 7.20 7.66 7.66 975 1831 11 4 A Damian Warner 7.65 7.65 972 1992 2 5 A Oleksiy Kasyanov 7.58 7.58 955 1877 7 6 B Zachery Ziemek 7.19 7.57 7.57 952 1855 8 7 A Felipe dos Santos 5.26 7.54 7.40 7.54 945 1913 3 8 A Rico Freimuth 7.32 7.37 7.51 7.51 937 1910 4 9 B Larbi Bourrada 7.16 7.31 7.51 7.51 937 1836 10 10 A Eelco Sintnicolaas 7.43 7.50 7.50 935 1882 6 11 A Ilya Shkurenyov 7.50 7.50 935 1793 12 12 B Thomas van der Plaetsen 7.32 7.42 7.42 915 1680 22 13 A Kai Kazmirek 7.40 7.40 910 1793 13 14 A Jorge Ureña 7.29 7.30 7.30 886 1749 15 15 B Trey Hardee 7.30 7.20 7.30 886 1847 9 16 A Adam Helcelet 7.22 7.29 7.21 7.29 883 1724 17 17 A Pieter Braun 7.22 7.29 7.29 883 1719 18 18 B Akihiko Nakamura 7.26 7.20 7.26 876 1768 14 19 B Bastien Auzeil 7.13 7.26 7.26 876 1688 20 20 B Willem Coertzen 7.22 7.25 7.25 874 1739 16 21 B Pau Tonnesen 7.20 7.21 7.21 864 1668 25 22 A Jeremy Taiwo 7.14 7.15 7.15 850 1697 19 23 A Maicel Uibo 7.13 7.13 845 1651 26 24 A Paweł Wiesiołek 7.08 7.08 7.08 833 1678 23 25 B Luiz Alberto de Araújo 6.94 6.94 799 1677 24 26 B Niels Pittomvils 6.86 6.86 781 1557 27 27 B Yordanis García 6.82 6.82 771 1683 21 28 B Janek Õiglane 6.75 6.78 6.78 762 1512 28 29 B Keisuke Ushiro 6.73 4.86 6.73 750 1500 29

Shot put The shot put was held on 28 August at 11:55.

Rank Group Athlete Nationality No. 1 No. 2 No. 3 Result Points Notes Overall Overall Rank 1 A Rico Freimuth 15.23 15.50 14.86 15.50 820 2730 3 2 A Bastien Auzeil 14.69 15.38 15.38 813 2501 14 3 A Adam Helcelet 15.11 15.29 15.30 15.30 808 2532 12 4 A Kurt Felix 13.81 15.02 14.39 15.02 791 2622 6 5 A Keisuke Ushiro 13.30 14.36 14.93 14.93 785 2285 27 6 A Luiz Alberto de Araújo 14.84 14.35 14.84 780 2457 15 7 A Eelco Sintnicolaas 14.13 14.65 14.60 14.65 768 2650 4 8 A Yordanis García 14.54 14.35 14.49 14.54 761 2444 17 9 A Ashton Eaton 14.33 14.52 14.52 760 2830 1 10 B Maicel Uibo 14.42 14.37 14.45 14.45 756 2407 20 11 B Damian Warner 14.44 14.17 14.01 14.44 755 2747 2 12 A Janek Õiglane 13.76 14.43 14.30 14.43 755 2267 28 13 A Michael Schrader 12.11 14.32 14.32 748 2645 5 14 B Kai Kazmirek 13.90 13.85 14.27 14.27 745 2538 11 15 B Oleksiy Kasyanov 13.98 14.25 14.25 744 2621 7 16 A Jeremy Taiwo 14.04 14.18 14.18 739 2436 19 17 B Ilya Shkurenyov 14.03 13.54 14.09 14.09 734 2527 13 18 B Pieter Braun 13.51 13.90 13.90 722 2441 18 19 B Thomas van der Plaetsen 13.60 13.56 13.83 13.83 718 2398 22 20 B Willem Coertzen 13.66 13.75 13.75 713 2452 16 21 A Pau Tonnesen 13.54 13.74 13.74 712 2380 23 22 B Larbi Bourrada 13.44 12.88 13.73 13.73 712 2548 9 23 B Felipe dos Santos 13.20 13.61 13.32 13.61 704 2617 8 24 B Paweł Wiesiołek 13.50 13.50 698 2376 24 25 A Zachery Ziemek 13.28 13.38 13.21 13.38 690 2545 10 26 B Niels Pittomvils 12.13 12.77 12.77 653 2210 29 27 B Jorge Ureña 11.01 12.74 12.74 651 2400 21 28 B Akihiko Nakamura 11.14 11.67 10.94 11.67 586 2354 25 29 A Trey Hardee 10.20 10.20 498 2345 26

High jump The high jump was held on 28 August at 16:15.

Rank Group Athlete Nationality 1.86 1.89 1.92 1.95 1.98 2.01 2.04 2.07 2.10 2.13 2.16 Result Points Notes Overall Overall Rank 1 A Maicel Uibo – – – – o – xo o o o xxx 2.13 925 3332 14 1 A Thomas van der Plaetsen – – – o – o o o xo o xxx 2.13 925 3323 16 3 A Jeremy Taiwo – – – – o – o – xo xxx 2.10 896 3332 15 4 A Kai Kazmirek – – – o – o – – xo xxx 2.10 896 3434 6 4 A Kurt Felix – – – o – o xo xo xo xxx 2.10 896 3518 3 6 A Ilya Shkurenyov – – o – o o xo o xxo xxx 2.10 896 3423 8 7 B Larbi Bourrada o o o o o o xxo xo xxx 2.07 868 3416 9 8 A Adam Helcelet – o – o xo o o xxx 2.04 840 3372 13 8 A Pau Tonnesen – – – o o xo o xxx 2.04 840 3220 20 10 B Damian Warner o o o o o xxo o xxx 2.04 840 3587 2 11 A Zachery Ziemek – – – xo xo xxo o xxx 2.04 840 3385 11 12 B Yordanis García – o o xo o xxo xo xxx 2.04 840 3284 18 13 B Pieter Braun – o – o o xo xxo xxR 2.04 840 3281 19 14 B Bastien Auzeil – – o o o o xxx 2.01 813 3314 17 15 A Jorge Ureña – o – o xo o xxx 2.01 813 3213 21 16 B Oleksiy Kasyanov – – o xo xxo o xxx 2.01 813 3434 5 17 A Ashton Eaton – – o o o xo xxx 2.01 813 3643 1 18 B Felipe dos Santos o – o o xo xo xxx 2.01 813 3430 7 19 A Paweł Wiesiołek – o xxo xo o xxx 1.98 785 3161 23 20 B Willem Coertzen – o o o xxx 1.95 758 3210 22 20 B Akihiko Nakamura – o o o xxx 1.95 758 3112 24 20 B Rico Freimuth o o o o xxx 1.95 758 3488 4 23 B Michael Schrader xo o o o xxx 1.95 758 3403 10 24 A Janek Õiglane – o o xxx 1.92 731 2998 25 25 A Niels Pittomvils – o xo xxx 1.92 731 2941 27 25 B Eelco Sintnicolaas o – xo xxx 1.92 731 3381 12 27 B Keisuke Ushiro xo o xxx 1.89 705 2990 26 B Trey Hardee 0 B Luiz Alberto de Araújo 0

400 metres The 400 metres was held on 28 August at 20:20.

Rank Heat Athlete Nationality Result Points Notes Overall Overall Rank 1 4 Ashton Eaton 45.00 1060 4703 1 2 4 Kai Kazmirek 46.83 967 4401 4 3 4 Michael Schrader 47.12 952 4355 5 4 4 Damian Warner 47.30 943 4530 2 5 3 Larbi Bourrada 47.60 929 4345 6 6 4 Akihiko Nakamura 47.81 918 4030 22 7 2 Rico Freimuth 47.82 918 4406 3 8 2 Ilya Shkurenyov 47.88 915 4338 9 9 3 Felipe dos Santos 47.89 914 4344 7 10 3 Eelco Sintnicolaas 47.93 913 4294 11 11 4 Jeremy Taiwo 47.94 912 4244 12 12 3 Oleksiy Kasyanov 48.13 903 4337 10 13 4 Pieter Braun 48.24 898 4179 16 14 2 Paweł Wiesiołek 48.55 883 4044 21 15 2 Bastien Auzeil 48.66 877 4191 15 16 3 Yordanis García 48.67 877 4161 17 17 2 Jorge Ureña 49.17 853 4066 20 18 2 Niels Pittomvils 49.45 840 3781 24 19 1 Adam Helcelet 49.66 830 4202 14 20 1 Zachery Ziemek 49.89 820 4205 13 20 3 Kurt Felix 49.89 820 4338 8 22 1 Pau Tonnesen 50.24 804 4024 23 23 1 Maicel Uibo 50.24 804 4136 18 24 1 Thomas van der Plaetsen 50.28 802 4125 19 25 2 Keisuke Ushiro 50.85 776 3766 26 26 1 Janek Õiglane 50.95 771 3769 25 3 Willem Coertzen 0

110 metres hurdles The 110 metres hurdles was held on 29 August at 09:00.