Updated 8.35pm: Bali nine members Andrew Chan and Myuran Sukumaran have lost their appeal against an Indonesian presidential decision to deny them clemency.

The lawyers for him and fellow Australian Myuran Sukumaran have said they do have other options if they fail to win an appeal today.

Lawyer Peter Morrisey, who's part of their legal team, says there are other avenues they can look at to try to spare the men's lives.

However, the appeal is likely to be the pair's last legal avenue to save them from the firing squad.

Jakarta is waiting for all 10 prisoners in line for the firing squad to run out of options for court appeals before setting an execution date.