Ghani's surprise decision came after Abdullah had already taken the stage for the event, which would have been the first debate, broadcast live, before the September 28 polls.
Abdullah stood at a lectern. A second lectern remained empty beside him. The journalist who was to have moderated the debate was left simply to state the obvious: that Ghani did not show up.
The debate quickly turned into an interview with Abdullah, who is Ghani's chief executive under an awkward power-sharing arrangement brokered by the United States after the 2014 election.
"Ghani cannot debate here. This is his first escape -- his second escape will happen after the election," Abdullah said.
A spokesman for Ghani, Shah Hussein Murtazawi, explained the president's absence by saying: "Abdullah didn't have a plan to talk about; that is why he didn't show up."
Until the debate hiccup, the election campaign has been somewhat lackluster, and relegated to second-tier news behind the state of the talks between the Taliban and the United States.
Abdullah is running for the presidency for a third time, after coming in second place in 2009 and again in 2014.
The 2014 election was tainted by irregularities that were serious enough for Ghani to eventually accept the unorthodox power-sharing deal, with the post of chief executive created especially for Abdullah.
The campaign only sparked a bit of interest for the first time last week when US President Donald Trump said talks with the Taliban on a deal for withdrawing US troops from the country were dead.
But the security situation in Afghanistan is unstable -- insurgent attacks have largely prevented candidates from campaigning on the ground and sparked fears about lower voter turnout.
Monday 16 September 2019 22:49