Hi, Rusty!
Right...the tie-break......
A tie -break is played if the no of games in the set reaches 6-all.
The player due to serve the 13th game serves first, then the other player serves the next two points.
After the third point, the players take turns, serving two points each.
They change ends after the first 6 points have been played.
The first player to reach 7 points wins the tie-break.
But if the tie-break score reaches 6 all, then the winner is whoever gets two clear points ahead.
Is that making sense to you?
Jo plays Simona Halep in the Quarter- final
(Halep just put out Azarenka)