The magic number is 5, if you have 5 matches completed you can start challenge matches on June 28, however, please prioritize your Schedule matches as Josh, Dhana, Raja are getting caught up.

The Challenge match rules are as follows, as you need 8 matches to qualify for playoffs and can play up to 15 matches. note: Scoring is different for matches 11-15:

Challenge Matches—You can play any  person up to 2x total including challenge and scheduled matches.   You must total of 8 matches to qualify for playoffs.  Match 9 and 10 (optional) are a regular challenge matches with usual scoring.  Matches 11-15 (optional) for player with +10 matches will be scored as follows with different victory points to balance the loophole of point stacking to move up in rankings:

MATCHES 11-15

• W over a +.500 player at time of match= +1.0
• L  against a +500 player = -.5
• W over a .500 or below = +.5
• L against a .500 or below = -1.0