You could still reasonably assume that the other person cancelled first when the confirmation comes through. People may be able to figure out how long it takes, or they’ll just imagine that’s what happened and that’ll be enough for them to get upset.
You wouldn’t know who cancelled before whom. I twould only declare results at every 15 minutes thats atleast 10 minute since last someone voted.
You could still reasonably assume that the other person cancelled first when the confirmation comes through. People may be able to figure out how long it takes, or they’ll just imagine that’s what happened and that’ll be enough for them to get upset.