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:       Copa America Centenario (CAC) (ID: 1ad6)
    Conference: A                             (ID: d13sw) (Sort: Conf) (Playoffs: 2)
      Team:     Colombia                      (ID: t1mbr)
      Team:     Costa Rica                    (ID: t1770)
      Team:     Paraguay                      (ID: t1mbu)
      Team:     USA                           (ID: t1mbx)
    Conference: B                             (ID: d13sx) (Sort: Conf) (Playoffs: 2)
      Team:     Brazil                        (ID: t1mbp)
      Team:     Ecuador                       (ID: t1mbs)
      Team:     Haiti                         (ID: t1mbt)
      Team:     Peru                          (ID: t1mbv)
    Conference: C                             (ID: d13sy) (Sort: Conf) (Playoffs: 2)
      Team:     Jamaica                       (ID: t1772)
      Team:     Mexico                        (ID: t1773)
      Team:     Uruguay                       (ID: t1mbw)
      Team:     Venezuela                     (ID: t1mby)
    Conference: D                             (ID: d13sz) (Sort: Conf) (Playoffs: 2)
      Team:     Argentina                     (ID: t1mbm)
      Team:     Bolivia                       (ID: t1mbn)
      Team:     Chile                         (ID: t1mbq)
      Team:     Panama                        (ID: t1774)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: 
  State: 
  Level: A
  Season: 2016 (current: True)
  Author: Sam J
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Conf: Points, GoalsDelta, GoalsFor, Points HeadToHead, GoalsDelta
HeadToHead, GoalsFor HeadToHead, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.3333333
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagorean
  WeightExponent:  0.458
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
6/3/16    USA          0-2   Colombia     (ID: g1qfgm)
6/4/16    Brazil       0-0   Ecuador      (ID: g1qfgn)
6/4/16    Costa Rica   0-0   Paraguay     (ID: g1qfgp)
6/4/16    Haiti        0-1   Peru         (ID: g1qfgq)
6/5/16    Jamaica      0-1   Venezuela    (ID: g1qfgr)
6/5/16    Mexico       3-1   Uruguay      (ID: g1qfgs)
6/6/16    Argentina    2-1   Chile        (ID: g1qfgt)
6/6/16    Panama       2-1   Bolivia      (ID: g1qfgu)
6/7/16    Colombia           Paraguay     (ID: g1qfgv)
6/7/16    USA          4-0   Costa Rica   (ID: g1qfgw)
6/8/16    Brazil             Haiti        (ID: g1qfgx)
6/8/16    Ecuador            Peru         (ID: g1qfgy)
6/9/16    Mexico             Jamaica      (ID: g1qfgz)
6/9/16    Uruguay            Venezuela    (ID: g1qfh0)
6/10/16   Argentina          Panama       (ID: g1qfh1)
6/10/16   Chile              Bolivia      (ID: g1qfh2)
6/11/16   Colombia           Costa Rica   (ID: g1qfh3)
6/11/16   USA                Paraguay     (ID: g1qfh4)
6/12/16   Brazil             Peru         (ID: g1qfh5)
6/12/16   Ecuador            Haiti        (ID: g1qfh6)
6/13/16   Mexico             Venezuela    (ID: g1qfh7)
6/13/16   Uruguay            Jamaica      (ID: g1qfh8)
6/14/16   Argentina          Bolivia      (ID: g1qfh9)
6/14/16   Chile              Panama       (ID: g1qfha)
GamesEnd