I think the translation done for that statement made a lot of people miss the meaning behind Mihawk's words.
What Mihawk wanted to test wasn't his strength or distance but he wanted to see if WB was actually stronger/what made WB to be concided stronger, and he found his answer, in that unlike him or the Shichibukai WB has nakama and Mihawk saw the difference between him and WB that time that is why he didn't bother aiming for him again because someone would get in the way, Marco even made this clear when he told Kizaru they (Aokiji, Kizaru, Mihawk) cant aim straight for the king when they (Marco, Jozu, and the rest) are around their king.
To make it clear Mihawk wanted to see what is the difference between him and WB and the difference was that WB is a king with subject that will fight alongside him while Mihawk didn't have that
On topic
Mihawk should win this