From the Middle States Rules and Regs
http://assets.usta.com/assets/649/15/2013_Section_Rules_Final.pdf
"DISTRICT CHAMPIONSHIPS: The area shall determine the progression from local league to Section Championship. This process – including the structure for any playoffs or championships (flight, area, for example) ‐ shall be distributed in writing to team captains prior to the start ofthe local league season."
And then:
"Wild Card Procedure
In any district where an additional team is needed to even out the flights, the following procedure will be used to determine who will receive the wild card invitation.
If all teams in contention played the same number of matches with the same schedule format(e.g., allteams played a double round robin, or all teams played againstthe same number ofteams,the teamwith the best statistics in TennisLink will be the wild card).
When the flights have different formats, we will take the percentage of match wins vs matches played; add the percentage of individual courts won vsthe number of individual courts played and average them. If one team has the best average by at least 5%, that teamwill advance. If not the top two will have a playoff
If no championship is held, the winner will be the No. 1 team in the final standings in TennisLink TennisLink uses national rule: 2.03H Procedures in the Event of a Tie in the nationalrulebook to break ties."