This is the Mixed-double draw of Wimbledon 2017.
How are the seeds determined in Mixed Double tournaments considering that there is no general rankings?
The 2017 Grand Slam Rule Book makes no difference between Men's, Women's or Mixed Doubles (see page 30). Therefore the same seeding system is used for all three.
The selection of seeds is based on the team ranking, which is calculated by adding the better of each player's singles or doubles ranking.
Ties are broken in the following way: