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:       Confederations Cup (Confederations) (ID: 1afq) (Sort: Conf)
    Conference: Grupo A                             (ID: d11ft) (Sort: Div) (Playoffs: 2)
      Team:     Brasil                              (ID: t17k1)
      Team:     Itália                              (ID: t17k3)
      Team:     Japão                               (ID: t17k4)
      Team:     México                              (ID: t17k5)
    Conference: Grupo B                             (ID: d11fu) (Sort: Div) (Playoffs: 2)
      Team:     Espanha                             (ID: t17k2)
      Team:     Nigéria                             (ID: t17k6)
      Team:     Taiti                               (ID: t17k7)
      Team:     Uruguai                             (ID: t17k8)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: World
  State: 
  Level: B
  Season: 2013 (current: True)
  Author: Vilhena
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, Wins, GoalsDelta, GoalsFor, Points HeadToHead, DrawLots
Conf: MoveClinchedToFrontBySeed, Points, Wins, GoalsDelta, GoalsFor,
Points HeadToHead, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.196875
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagorean
  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
6/15/13   Brasil    3-0    Japão     (ID: g1a3s3)
6/16/13   Espanha   2-1    Uruguai   (ID: g1a3s4)
6/16/13   México    1-2    Itália    (ID: g1a3s5)
6/17/13   Taiti     1-6    Nigéria   (ID: g1a3s6)
6/19/13   Brasil    3-0    México    (ID: g1a3s7)
6/19/13   Itália    4-3    Japão     (ID: g1a3s8)
6/20/13   Espanha   10-0   Taiti     (ID: g1a3s9)
6/20/13   Nigéria   1-2    Uruguai   (ID: g1a3sa)
6/22/13   Itália    2-4    Brasil    (ID: g1a3sb)
6/22/13   Japão     1-2    México    (ID: g1a3sc)
6/23/13   Nigéria          Espanha   (ID: g1a3sd)
6/23/13   Uruguai          Taiti     (ID: g1a3se)
GamesEnd