• Felix crushes women's 400m final in 49.68 in Eugene

Beijing 2008 Olympic and three-time men 1500m champion Asbel Kiprop is hoping his doping nightmare will finally end on Thursday when the Athletics Integrity Unit (AIU) is expected to deliver a final ruling on the case that stunned the sport in London. Last year his samples from an out-of-competition test conducted in his home in Iten on November 27, 2017, had returned adverse finding for banned blood booster EPO.

New rules to reduce naturally high testosterone levels in female athletes have been branded "unscientific". Last year, athletics chiefs ruled women with levels of five nanomoles per litre or more must have hormone treatment before being allowed to compete. But experts, reporting in the British Medical Journal, say there is a lack of evidence about testosterone's effects and the cut-off figure is arbitrary.

IAAF last week established a new system qualifying system for the 2020 Tokyo Olympics with the ridiculously high standards and ranking system that will be used to select athletes for the next Olympic and possibly next World championships. What are the positives and which countries will benefit the most from the new IAAF qualification system?

Norway's Sondre Moen, the European Marathon record holder (2:05:48), made a return to road racing after recovering from tendon tear in the groin at the Gdynia Half Marathon in Poland. Moen took a very comfortable win in 1:01:17 which is a new course record. Poland's Krystian Zalewski in his debut took second place in 1:02:36.