![DOHA - QATAR - OCT 3: Maicel Uibo of Estonia competing in the 1500m Decathlon on day 7 of the 17th IAAF World Athletics Championships Doha 2019 at Kha Stock Photo - Alamy DOHA - QATAR - OCT 3: Maicel Uibo of Estonia competing in the 1500m Decathlon on day 7 of the 17th IAAF World Athletics Championships Doha 2019 at Kha Stock Photo - Alamy](https://c8.alamy.com/comp/2AK0M9X/doha-qatar-oct-3-maicel-uibo-of-estonia-competing-in-the-1500m-decathlon-on-day-7-of-the-17th-iaaf-world-athletics-championships-doha-2019-at-kha-2AK0M9X.jpg)
DOHA - QATAR - OCT 3: Maicel Uibo of Estonia competing in the 1500m Decathlon on day 7 of the 17th IAAF World Athletics Championships Doha 2019 at Kha Stock Photo - Alamy
![Japan's Hiromasa Tanaka competes in the Decathlon Long Jump at the Asian Games in Doha, Qatar, Sunday Dec. 10, 2006. (AP Photo/Lee Jin-man Stock Photo - Alamy Japan's Hiromasa Tanaka competes in the Decathlon Long Jump at the Asian Games in Doha, Qatar, Sunday Dec. 10, 2006. (AP Photo/Lee Jin-man Stock Photo - Alamy](https://c8.alamy.com/comp/2NG79NP/japans-hiromasa-tanaka-competes-in-the-decathlon-long-jump-at-the-asian-games-in-doha-qatar-sunday-dec-10-2006-ap-photolee-jin-man-2NG79NP.jpg)
Japan's Hiromasa Tanaka competes in the Decathlon Long Jump at the Asian Games in Doha, Qatar, Sunday Dec. 10, 2006. (AP Photo/Lee Jin-man Stock Photo - Alamy
![DOHA - QATAR - OCT 3: Niklas Kaul of Germany competing in the 1500m Decathlon on day 7 of the 17th IAAF World Athletics Championships Doha 2019 at Kha Stock Photo - Alamy DOHA - QATAR - OCT 3: Niklas Kaul of Germany competing in the 1500m Decathlon on day 7 of the 17th IAAF World Athletics Championships Doha 2019 at Kha Stock Photo - Alamy](https://c8.alamy.com/comp/2AK0MDM/doha-qatar-oct-3-niklas-kaul-of-germany-competing-in-the-1500m-decathlon-on-day-7-of-the-17th-iaaf-world-athletics-championships-doha-2019-at-kha-2AK0MDM.jpg)