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:     Canadian Rugby Championship (CRC)      (ID: 1a1u) (Sort: League) (Playoffs: 1)
    Division: East                                   (ID: d1ar) (Sort: Div) (Playoffs: 0)
      Team:   Ontario Blues               (Blues)    (ID: t11e5)
      Team:   Atlantic Rock               (Rock)     (ID: t11e7)
    Division: West                                   (ID: d1as) (Sort: Div) (Playoffs: 0)
      Team:   Pacific Tyee                (Pacific)  (ID: t11e6)
      Team:   Prairie Wolfpack            (Wolfpack) (ID: t11e8)
  Kind: pro
  Sport: rugby
  Gender: male
  Country: Canada
  State: 
  Level: A
  Season: 2012 (current: True)
  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: September 24, 2012 - 08:19:31
  LotteryNote: 
LeagueEnd

SortBegin
League:
	Points, 
	If [(Size=2) Points HeadToHead],
	GoalsDelta,
	GoalsFor,
	DrawLots
Div: Points, Average Points HeadToHead, GoalsDelta, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  4
  PointsForWinInOvertime:  4
  PointsForWinInShootout:  4
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0.05
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  PercentOfPointsWon
  WeightExponent:  0.458
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  MacTier Cup
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Wooden Spoon
  Demote:  1
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: away
8/18/12   Pacific    19-64   Wolfpack   (ID: g13cg5) (HomeBonus: 1)
8/25/12   Rock       19-23   Blues      (ID: g13cg6) (AwayBonus: 1)
8/25/12   Pacific    19-45   Wolfpack   (ID: g13cg7) (HomeBonus: 1)
9/1/12    Pacific    36-31   Blues      (ID: g13cg8) (HomeBonus: 1) (AwayBonus: 1)
9/1/12    Wolfpack   22-18   Rock       (ID: g13cg9) (HomeBonus: 1)
9/4/12    Wolfpack   17-38   Blues      (ID: g13cga) (HomeBonus: 1)
9/4/12    Pacific    20-26   Rock       (ID: g13cgb)
9/15/12   Blues      32-17   Pacific    (ID: g13cgc) (AwayBonus: 1)
9/15/12   Rock       29-26   Wolfpack   (ID: g13cgd) (HomeBonus: 2) (AwayBonus: 1)
9/22/12   Blues      40-16   Rock       (ID: g13cge) (AwayBonus: 1)
GamesEnd