Brazil, Greece and Indonesia are among five countries who may be added to the World Anti-Doping Agency's "non-compliant" list.
Ed Whitlock, 85, is a new world record holder after the English-born Canadian finished the Toronto Waterfront Marathon in under four hours.
Russian Sports Minister Vitaly Mutko is promoted despite allegations of state-sponsored doping during his time in office.
Mo Farah is nominated for the IAAF's male athlete of the year award, with Caster Semenya a contender for the women's equivalent.
Audio & Video
Great Britain's Jessica Ennis-Hill says she wants to stay involved in athletics following her retirement from the sport.
At a crucial time for the anti-doping movement, the ramifications of the hacking of medical records are widespread, writes BBC sports editor Dan Roan.
How to get into Athletics
How to get into athletics - one of the widest ranges of choice in sport, from jumps and throws to sprints or distance running.
What's on BBC Sport this week
This week's sport on the BBC includes the first Test between Bangladesh and England in Chittagong plus commentary on five Premier League games.