|2011 Kobe||400 m hurdles|
|World Junior Championships|
|2010 Moncton||400 m hurdles|
|2011 Shenzhen||4x400 m relay|
Born in Okayama Prefecture, Abe initially contested both the 110 metres hurdles and the 400 m hurdles, winning silver and gold medals at the Japanese high school championships in 2009. He chose to specialise in the latter event from mid-2009 onwards. Abe ran a personal best of 49.46 seconds to claim the silver medal at the 2010 World Junior Championships in Athletics, finishing closely behind the strong favourite Jehue Gordon. He also ran with the Japanese 4×400 metres relay team, helping them to fifth place. His hurdles time made him the third best Asian in the event that year, after compatriots Kenji Narisako and Takayuki Koike.
Abe made his second ever sub-50-second clocking at the 2011 Japanese Athletics Championships, where he took third with a time of 49.81 seconds. He was selected to represent Japan at the 2011 Asian Athletics Championships in Kobe and he came away with his first regional title, ending the race with a time of 49.64 seconds to win the gold medal.
- 安部 孝駿 Takatoshi Abe (in Japanese). JAAF. Retrieved on 2011-08-14.
- Men's 400m Hurdles. IAAF (2010-07-24). Retrieved on 2011-08-14.
- 400 Metres Hurdles 2010. IAAF (2011-01-15). Retrieved on 2011-08-14.
- Nakamura, Ken (2011-06-12). Murofushi wins 17th straight national title. IAAF. Retrieved on 2011-08-14.
- Barshim improves to 2.35m in Kobe - Asian champs, day 3. IAAF (2011-07-10). Retrieved on 2011-08-14.