Here is an explanation of some abbreviations you will find in the online schedule:
SE Single Elimination — once you lose in the main draw, there are no further matches.
FRLC First Round Loser Consolation — a consolation draw in which only the losers in the first round are entered.
FMLC First Match Loser Consolation — a consolation draw in which only the losers in the first round are entered.
FIC Feed-in Championship — refers to a special form of consolation draw in which the losers from the main draw are fed back into another draw against players who lost in the earlier rounds of the tournament.
MFIC Modified Feed-in Championship — A modified form of a Feed-in Championship that feeds losers from the first several rounds into the consolation.
RR Round Robin — each player in the round robin draw shall play every other player in the round robin draw. Note that any Challenger, Open, or Championship tournament with three participants must run a round robin, even if it doesn't say so in the schedule. Each player in the round robin draw shall play every other player in the round robin draw.
** All Challenger, Open, Championship, and Excellence tournaments and the Sectional Championships singles events are required to hold a playoff for 3rd and 4th places, unless a round robin draw format is used.
Other Abbreviations in the online Schedule:
BG Boys' and Girls'
(18-12) The divisions offered at the tournament (i.e. 18 and under, 14 and under, 12 and under)
s Singles — Singles divisions offered for the ages listed in parentheses
d Doubles — Doubles divisions offered for the ages listed in parentheses
xj Mixed Doubles — Mixed doubles offered for the ages listed in parentheses
e Co-ed — Co-ed divisions listed for the ages in the parentheses
Family Doubles Doubles events offered at Family tournaments juniors may participate in (Father-Son, Father-Daughter, Mother-Son, Mother-Daughter, Brother-Brother, Brother-Sister, and Sister-Sister).