3. Sri Lanka, Oman - Lost 4

Sri Lanka and Oman have four defeats each in T20 Asia Cup history. The Lankan Lions lost three matches in the inaugural edition of the tournament. However, they performed brilliantly in 2022. Under Dasun Shanaka's inspirational leadership, Sri Lanka went on to win the title, losing just one game in the campaign.
On the other hand, Oman lost two games in the 2016 edition of the tournament. However, they didn't make it to the following edition in 2022. This year, under Jatinder Singh's leadership, Oman has encountered two defeats, and will be up against the might of the Men in Blue in their next at Abu Dhabi.