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: Continental Indoor Football League (CIFL)         (ID: 1ay) (Playoffs: 2)
    Team: Chicago Pythons                    (Chicago)      (ID: t1132)
    Team: Dayton Silverbacks                 (Dayton)       (ID: t1133)
    Team: Evansville Rage                    (Evansville)   (ID: t1134)
    Team: Indianapolis Enforcers             (Indianapolis) (ID: t1135)
    Team: Port Huron Patriots                (Port Huron)   (ID: t1136)
    Team: Saginaw Sting                      (Saginaw)      (ID: t1137)
  Kind: pro
  Sport: football
  Gender: male
  Country: USA
  State: 
  Level: C
  Season: 2012 (current: False)
  Author: Brian Reiss
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, Wins HeadToHead, Average Points, DrawLots

Conf: MoveClinchedToFrontBySeed, Points, Wins HeadToHead, Average Points, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0.00689655172413793
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.52
  WeightType:  PercentOfPointsWon
  WeightExponent:  0
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: away
3/10/12   Chicago        9-52    Port Huron     (ID: g12sqv)
3/11/12   Indianapolis   7-48    Dayton         (ID: g12sqw)
3/17/12   Indianapolis   35-63   Evansville     (ID: g12sqx)
3/17/12   Dayton         50-22   Port Huron     (ID: g12sqy)
3/18/12   Chicago        32-64   Saginaw        (ID: g12sqz)
3/23/12   Chicago        13-48   Dayton         (ID: g12sr0)
3/24/12   Evansville     44-34   Port Huron     (ID: g12sr1)
3/25/12   Indianapolis   18-91   Saginaw        (ID: g12sr2)
3/30/12   Evansville     29-72   Saginaw        (ID: g12sr3)
3/31/12   Port Huron     24-32   Dayton         (ID: g12sr4)
3/31/12   Chicago        34-40   Indianapolis   (ID: g12sr5)
4/7/12    Dayton         52-39   Evansville     (ID: g12sr6)
4/7/12    Port Huron     37-0    Indianapolis   (ID: g12sr7)
4/14/12   Dayton         62-15   Indianapolis   (ID: g12sr8)
4/14/12   Saginaw        49-15   Port Huron     (ID: g12sr9)
4/15/12   Chicago        29-39   Evansville     (ID: g12sra)
4/20/12   Port Huron     20-42   Saginaw        (ID: g12srb)
4/21/12   Chicago        21-50   Dayton         (ID: g12src)
4/21/12   Indianapolis   21-65   Evansville     (ID: g12srd)
4/27/12   Chicago        16-61   Saginaw        (ID: g12sre)
4/28/12   Evansville     34-41   Dayton         (ID: g12srf)
4/28/12   Indianapolis   8-62    Port Huron     (ID: g12srg)
5/5/12    Port Huron     7-28    Evansville     (ID: g12srh)
5/5/12    Saginaw        62-0    Indianapolis   (ID: g12sri)
5/11/12   Dayton         25-41   Saginaw        (ID: g12srj)
5/12/12   Evansville     41-18   Indianapolis   (ID: g12srk)
5/12/12   Chicago        17-23   Port Huron     (ID: g12srm)
GamesEnd