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 Date of birth: 23 July 1981  | 
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| Personal bests | ||
| 100 m | 10,50 (+2.2) | Athens 2004 | 
| Long jump | 8.05 (+1.2) | Almaty 2002 | 
| Shot put | 16.95 | Guangzhou 2010 | 
| High jump | 2.12 | Karaganda 2002 | 
| 400 m | 46,81 | Athens 2004 | 
| 110 m hurdles | 13,93 (+0.5) | Almaty 2002 | 
| Discus throw | 52.80 | Staiki 2004 | 
| Pole vault | 5.30 | Götzis 2008 | 
| Javelin throw | 60.31 | Ratingen 2006 | 
| 1500 m | 4.32,34 | Ratingen 2006 | 
| Total points based on PB | 
9230 | |
| Total 10 best decathlons | 84783 | |
| Decathlons over 8000 points (18) | |||||
| Pts | Results | 1st day | 2nd day | P | Venue | 
| 8253 | 10,91 - 7.77 - 14.53 - 2.12 - 48,65 -  14,12 - 48.48 - 4.62 - 50.53 - 4.48,79  | 
4437 | 3816 | 1 | Desenzano del Garda 2003 | 
| 8374 | 10,72 - 7.75 - 15.51 - 2.12 - 47,33 -  13,95 - 47.38 - 4.40 - 47.53 - 4.37,70  | 
4599 | 3775 | 3 | Paris 2003 | 
| 8512 | 10,76 - 7.78 - 15.40 - 2.06 - 47,51 -  14,01 - 52.33 - 4.50 - 55.54 - 4.42,77  | 
4526 | 3986 | 3 | Götzis 2004 | 
| 8725 | 10,50 - 7.81 - 15.93 - 2.09 - 46,81 -  13,97 - 51.65 - 4.60 - 55.54 - 4.38,11  | 
4689 | 4036 | 3 | Athens 2004 | 
| 8099 | 11,02 - 7.30 - 14.77 - 2.04 - 48,37 -  14,09 - 48.95 - 4.92 - 50.31 - 5.00,21  | 
4249 | 3850 | 3 | Talence 2004 | 
| 8293 | 10,84 - 7.30 - 16.47 - 2.09 - 47,72 -  14,05 - 51.13 - 4.40 - 48.26 - 4.42,67  | 
4473 | 3820 | 2 | Götzis 2006 | 
| 8414 | 10,69 - 7.33 - 15.98 - 1.97 - 47,58 -  14,12 - 45.12 - 4.75 - 60.31 - 4.32,34  | 
4380 | 4034 | 1 | Ratingen 2006 | 
| 8438 | 10,79 - 7.72 - 15.99 - 2.04 - 48,50 -  14,19 - 47.72 - 4.90 - 54.44 - 4.43,95  | 
4474 | 3964 | 1 | Talence 2006 | 
| 8384 | 10,81 - 7.63 - 16.41 - 2.03 - 48,28 -  14,47 - 47.87 - 4.80 - 56.66 - 4.47,74  | 
4474 | 3910 | 1 | Doha 2006 | 
| 8553 | 10,90 - 7.54 - 16.36 - 2.03 - 47,75 -  14,42 - 52.24 - 5.00 - 55.66 - 4.40,28  | 
4453 | 4100 | 2 | Kladno 2007 | 
| 8586 | 10,70 - 7.19 - 16.08 - 2.06 - 47,44 -  14,03 - 48.95 - 5.00 - 59.84 - 4.39,68  | 
4439 | 4147 | 3 | Osaka 2007 | 
| 8504 | 10,85 - 7.23 - 16.49 - 2.06 - 48,64 -  14,14 - 49.98 - 5.30 - 50.62 - 4.37,93  | 
4382 | 4122 | 1 | Götzis 2008 | 
| 8029 | 
11,07 - 6.97 - 16.02 - 2.00 - 50,64 -  14,63 - 50.79 - 4.90 - 55.89 - 4.53,23  | 
4092 | 3937 | 3 | Kladno 2009 | 
| 8026 | 10,92 - 7.14 - 16.95 - 2.03 - 50,79 -  15,03 - 48.61 - 4.90 - 53.62 - 4.57,80  | 
4245 | 3781 | 1 | Guangzhou 2010 | 
| 8089 | 11,02 - 6.87 - 16.69 - 1.98 - 49,77 -  14,65 - 51.18 - 5.10 - 51.82 - 4.52,73  | 
4143 | 3946 | 4 | Kladno 2011 | 
| 8172 | 11,04 - 7.26 - 16.22 - 2.01 - 49,30 -  14,41 - 50.75 - 5.15 - 50.48 - 5.00,22  | 
4253 | 3919 | 1 | Desenzano del Garda 2012 | 
| 8173 | 11,12 - 7.14 - 16.12 - 2.04 - 48,86 -  14,26 - 51.58 - 4.77 - 50.45 - 4.45,52  | 
4248 | 3925 | 1 | Kladno 2012 | 
| 8037 | 11,01 - 7.01 - 16.18 - 1.98 - 49,36 -  14,46 - 50.37 - 5.10 - 48.40 - 4.57,56  | 
4165 | 3872 | 1 | Pune 2013 | 
| Heptathlons over 6000 points (4) | |||
| 6033 | 7,16 - 7.89 - 14.30 - 2.11 - 7,96 - 4.40 - 2.46,89 | 1 | Karaganda 2002 | 
| 6155 | 7,04 - 7.97 - 14.95 - 1.99 - 7,87 - 4.60 - 2.42,34 | 4 | Budapest 2004 | 
| 6229 | 7,07 - 7.21 - 16.23 - 2.07 - 7,99 - 5.15 - 2.43,69 | 2 | Tallinn 2008 RHC | 
| 6131 | 7,20 - 7.31 - 16.19 - 2.06 - 8,15 - 5.20 - 2.47,45 | 3 | Valencia 2008 | 
| International medals (12) | 
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| Year | Venue | Championships | Event | Total | Medal | 
| 2001 | Osaka 2001 | East Asian Games | Decathlon | 7567 |   Gold | 
| 2002 | Busan 2002 | Asian Games | Decathlon | 7995 | |
| 2003 | Paris 2003 | World | Decathlon | 8374 |   Bronze | 
| 2004 | Athens 2004 | Olympic Games | Decathlon | 8725 |   Bronze | 
| 2006 | Doha 2006 | Asian Games | Decathlon | 8384 |   Gold | 
| 2007 | Osaka 2007 | World | Decathlon | 8586 |   Bronze | 
| 2008 | Valencia 2008 | World Indoor | Heptathlon | 6131 |   Bronze | 
| 2009 | Hanoi 2009 | Asian Indoor Games | Heptathlon | 5691 | |
| 2010 | Guangzhou 2010 | Asian Games | Decathlon | 8026 |   Gold | 
| 2012 | Hangzhou 2012 | Asian Indoor | Heptathlon | 5928 |   Gold | 
| 2013 | Pune 2013 | Asian Athletics | Decathlon | 8037 |   Gold | 
| 2014 | Hangzhou 2014 | Asian Indoor | Heptathlon | 5752 |   Gold | 
| Winner of the IAAF World Combined Events Challenge | |||||
| Year | 1st meeting | 2nd meeting | 3rd meeting | Total | Medal | 
| 2006 | 8293 Götzis 2006 | 8414 Ratingen 2006 | 8438 Talence 2006 | 25145 |   Gold |