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: Rugby Championship (Rugby Champions) (ID: 1a20) (Sort: Conf) (Playoffs: 1)
    Team: New Zealand        (All Blacks)      (ID: t11fz)
    Team: Argentina          (Pumas)           (ID: t11g0)
    Team: South Africa       (Springboks)      (ID: t11g1)
    Team: Australia          (Wallabies)       (ID: t11g2)
  Kind: pro
  Sport: rugby
  Gender: male
  Country: Southern Hemisphere
  State: 
  Level: A
  Season: 2012 (current: False)
  Author: Matt Grande
  Note: Stats are updated approximately once daily, usually around 9AM Eastern.<br/>Let me know if things are wrong: matt dot grande at gmail dot com.<br/><br/>Last Updated: October 07, 2012 - 01:42:45
  LotteryNote: 
LeagueEnd

SortBegin
Conf: Wins, Greatest GoalsDelta
SortEnd

RulesBegin
  PointsForWinInRegulation:  4
  PointsForWinInOvertime:  4
  PointsForWinInShootout:  4
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0.045
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.627
  WeightType:  PercentOfPointsWon
  WeightExponent:  1.4
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
8/18/12   All Blacks   27-19   Wallabies    (ID: g13cyh)
8/18/12   Pumas        6-27    Springboks   (ID: g13cyi)
8/25/12   Wallabies    0-22    All Blacks   (ID: g13cyj)
8/26/12   Springboks   16-16   Pumas        (ID: g13cyk)
9/8/12    Pumas        5-21    All Blacks   (ID: g13cym)
9/8/12    Springboks   19-26   Wallabies    (ID: g13cyn)
9/15/12   Pumas        19-23   Wallabies    (ID: g13cyp)
9/15/12   Springboks   11-21   All Blacks   (ID: g13cyq)
9/29/12   All Blacks   54-15   Pumas        (ID: g13cyr)
9/29/12   Wallabies    8-31    Springboks   (ID: g13cys)
10/6/12   All Blacks   32-16   Springboks   (ID: g13cyt)
10/6/12   Wallabies    25-19   Pumas        (ID: g13cyu)
GamesEnd