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:     OFC Champions League (OFCCL)          (ID: 1a10b) (Sort: Lottery) (Playoffs: 4)
    Division: Group A                               (ID: d130g) (Sort: Div) (Playoffs: 1)
      Team:   Ba F.C.              (Ba)             (ID: t1ggq)
      Team:   Gaïtcha FCN          (Gaïtcha)        (ID: t1ggr)
      Team:   Lupe ole Soaga                        (ID: t1ggt)
      Team:   A.S. Pirae           (Pirae)          (ID: t1ggu)
    Division: Group B                               (ID: d130h) (Sort: Div) (Playoffs: 1)
      Team:   Amicale F.C.         (Amicale)        (ID: t1ggn)
      Team:   Auckland City F.C.   (Auckland City)  (ID: t1ggp)
      Team:   Suva F.C.            (Suva)           (ID: t1ggv)
      Team:   Western United F.C.  (Western United) (ID: t1ggz)
    Division: Group C                               (ID: d130i) (Sort: Div) (Playoffs: 1)
      Team:   PRK Hekari United    (Hekari United)  (ID: t1ggs)
      Team:   Tafea F.C.           (Tafea)          (ID: t1ggw)
      Team:   Team Wellington                       (ID: t1ggx)
      Team:   A.S. Tefana          (Tefana)         (ID: t1ggy)
  Kind: fantasy
  Sport: soccer
  Gender: male
  Country: Fiji
  State: 
  Level: A
  Season: 2014-2015 (current: True)
  Author: Johkey3
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Lottery: Points, Average GoalsDelta, Average GoalsFor, Average Points
HeadToHead, DrawLots
Div: Points, Average GoalsDelta, Average GoalsFor, Average Points
HeadToHead, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.1888888889
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.6355932203
  WeightType:  Pythagorean
  WeightExponent:  1.7
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Playoffs
  Promote:  4
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
4/11/15   4:30 PM   Pirae             3-3   Lupe ole Soaga    (ID: g1kqsy) (Neutral)
4/11/15   4:30 PM   Suva              0-3   Auckland City     (ID: g1kqsz)
4/11/15   7:00 PM   Ba                3-0   Gaïtcha           (ID: g1kqt0)
4/11/15   7:00 PM   Western United    0-1   Amicale           (ID: g1kqt1) (Neutral)
4/12/15   4:30 PM   Tafea             2-3   Hekari United     (ID: g1kqt2) (Neutral)
4/12/15   7:00 PM   Team Wellington   2-1   Tefana            (ID: g1kqt3) (Neutral)
4/14/15   4:30 PM   Auckland City     3-0   Western United    (ID: g1kqt4) (Neutral)
4/14/15   4:30 PM   Ba                3-1   Lupe ole Soaga    (ID: g1kqt5)
4/14/15   7:00 PM   Gaïtcha           5-2   Pirae             (ID: g1kqt6) (Neutral)
4/14/15   7:00 PM   Suva              2-3   Amicale           (ID: g1kqt7)
4/15/15   4:30 PM   Hekari United     0-2   Team Wellington   (ID: g1kqt8) (Neutral)
4/15/15   7:00 PM   Tefana                  Tafea             (ID: g1kqt9) (Neutral)
4/17/15   4:30 PM   Tefana                  Hekari United     (ID: g1kqta) (Neutral)
4/17/15   7:00 PM   Tafea                   Team Wellington   (ID: g1kqtb) (Neutral)
4/18/15   4:30 PM   Gaïtcha                 Lupe ole Soaga    (ID: g1kqtc) (Neutral)
4/18/15   4:30 PM   Suva                    Western United    (ID: g1kqtd)
4/18/15   7:00 PM   Amicale                 Auckland City     (ID: g1kqte) (Neutral)
4/18/15   7:00 PM   Ba                      Pirae             (ID: g1kqtf)
GamesEnd