There is no St. Hailey. However, there is a Blessed John Haile. He has not yet been canonized so would not yet be considered as a patron.
There is no patron saint of golf. St. Sebastian is the patron saint of athletics. Another opinion: The patron saint of golfers is St. Andrew.
Saint Kiara is a saint but she is not the patron of anything at this time sorry
St. Lucia Filippini is a saint but not a patron saint at this time.
The closest I can find is St Bernard of Menthon who is the patron saint of mountaineers.
David of Wales is the patron saint of doves.
The patron saint of all sports is St. Sebastian.
I don't know if runners have their own saint, but St. Sebastian is the Patron Saint of Athletes.
Saint Zama is not a patron saint.
St. Isidore of Seville is the patron saint of the Internet.
There is no patron saint of tennis or tennis balls. All we have is St. Sebastian who is the patron saint of athletics and athletes.
Oh, dude, Saint Hailey? Like, no way! There isn't a Saint Hailey in the traditional Catholic saints lineup. Maybe she's the patron saint of messy hair and late-night pizza runs, but as far as official recognition goes, she's not on the list.
Pope Saint Leo the Great is not a patron saint.