You can add leagues, big or small, to Sports Club Stats.
   It's free.
   It's easy.
   Just email import@sportsclubstats.com the:
      structure
      schedule
      and rules
   In a few minutes you'll get back a link to the league.
   Play around, have fun, you won't break anything.
   I look forward to seeing what you create.

Info about the various settings:
   https://docs.google.com/document/d/1-UneDNk6tkOrc_B-WBnGnc5KGiy2kttXC2fW8dR7QzM/edit?hl=en

For example, here is what created this league:

LeagueBegin
  League:     National Derf League (NDL) (ID: 1ar5) (Sort: League) (Playoffs: 2)
    Division: 3 Man Teams                (ID: d1291) (Sort: Division) (Playoffs: 2)
      Team:   JCI                        (ID: t1bkk)
      Team:   JTS                        (ID: t1bkm)
  Kind: rec
  Sport: derf
  Gender: coed
  Country: USA
  State: Ohio
  Level: A
  Season: 2014 (current: True)
  Author: Carson
  Note: Derf is a fast-paced game in which the offensive team must score points by throwing a ball into a goal/end zone while the defense tries to prevent them from doing so. The first team to score 7 points and win by 2 wins the round. Each match is made of 3 best-of-five sets.
  LotteryNote: 
LeagueEnd

SortBegin
League: MoveClinchedToFront, Points, Average Points HeadToHead, GoalsDelta, DrawLots
Division: Points, Points, Average Points HeadToHead, GoalsDelta, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.5
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.6
  WeightType:  Pythagorean
  WeightExponent:  14
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
6/26/14   JCI   2-3   JTS   (ID: g1fp4z)
GamesEnd