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:       Taca Rio                                          (ID: 1adt) (Sort: Div)
    Conference: Grupo B                                           (ID: d13p0) (Sort: Div) (Playoffs: 2)
      Team:     Bangu Atletico Clube              (Bangu)         (ID: t16dq)
      Team:     Associacao Desportiva Cabofriense (Cabofriense)   (ID: t16zc)
      Team:     Clube de Regatas do Flamengo      (Flamengo)      (ID: t11hk)
      Team:     Nova Iguacu Futebol Clube         (Nova Iguacu)   (ID: t16dz)
      Team:     Club de Regatas Vasco da Gama     (Vasco da Gama) (ID: t11i2)
      Team:     Volta Redonda Futebol Clube       (Volta Redonda) (ID: t16e4)
    Conference: Grupo C                                           (ID: d13p1) (Sort: Div) (Playoffs: 2)
      Team:     Boavista Sport Club               (Boavista)      (ID: t16dr)
      Team:     Botafogo de Futebol e Regatas     (Botafogo)      (ID: t11hg)
      Team:     Fluminense Football Club          (Fluminense)    (ID: t11hm)
      Team:     Macae Esporte Futebol Clube       (Macae)         (ID: t16p0)
      Team:     Madureira Esporte Clube           (Madureira)     (ID: t16dy)
      Team:     Associacao Atletica Portuguesa    (Portuguesa)    (ID: t16dv)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: Rio de Janeiro
  State: 
  Level: B
  Season: 2018 (current: True)
  Author: Vilhena
  Note: 
  LotteryNote: 
LeagueEnd

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

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.24
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.52
  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
2/17/18   6:00 PM   Bangu              Fluminense      (ID: g1w057)
2/17/18   6:00 PM   Cabofriense        Boavista        (ID: g1w065)
2/17/18   6:00 PM   Flamengo           Madureira       (ID: g1w05m)
2/17/18   6:00 PM   Nova Iguacu        Botafogo        (ID: g1w05k)
2/17/18   6:00 PM   Vasco da Gama      Macae           (ID: g1w059)
2/17/18   6:00 PM   Volta Redonda      Portuguesa      (ID: g1w05t)
2/24/18   6:00 PM   Boavista           Nova Iguacu     (ID: g1w05a)
2/24/18   6:00 PM   Botafogo           Cabofriense     (ID: g1w067)
2/24/18   6:00 PM   Fluminense         Flamengo        (ID: g1w05y)
2/24/18   6:00 PM   Macae              Bangu           (ID: g1w05u)
2/24/18   6:00 PM   Madureira          Volta Redonda   (ID: g1w05f)
2/24/18   6:00 PM   Portuguesa         Vasco da Gama   (ID: g1w05v)
3/3/18    6:00 PM   Bangu              Portuguesa      (ID: g1w05j)
3/3/18    6:00 PM   Cabofriense        Macae           (ID: g1w064)
3/3/18    6:00 PM   Flamengo           Botafogo        (ID: g1w05q)
3/3/18    6:00 PM   Fluminense         Volta Redonda   (ID: g1w05n)
3/3/18    6:00 PM   Nova Iguacu        Madureira       (ID: g1w066)
3/3/18    6:00 PM   Vasco da Gama      Boavista        (ID: g1w05w)
3/7/18    6:00 PM   Boavista           Flamengo        (ID: g1w05x)
3/7/18    6:00 PM   Botafogo           Bangu           (ID: g1w05p)
3/7/18    6:00 PM   Macae              Volta Redonda   (ID: g1w05z)
3/7/18    6:00 PM   Madureira          Cabofriense     (ID: g1w062)
3/7/18    6:00 PM   Portuguesa         Nova Iguacu     (ID: g1w05g)
3/7/18    6:00 PM   Vasco da Gama      Fluminense      (ID: g1w061)
3/10/18   6:00 PM   Boavista           Bangu           (ID: g1w05b)
3/10/18   6:00 PM   Fluminense         Nova Iguacu     (ID: g1w05c)
3/10/18   6:00 PM   Macae              Flamengo        (ID: g1w05d)
3/10/18   6:00 PM   Madureira          Vasco da Gama   (ID: g1w05i)
3/10/18   6:00 PM   Portuguesa         Cabofriense     (ID: g1w063)
3/10/18   6:00 PM   Volta Redonda      Botafogo        (ID: g1w056)
3/17/18   6:00 PM   Bangu              Madureira       (ID: g1w060)
3/17/18   6:00 PM   Botafogo           Vasco da Gama   (ID: g1w05e)
3/17/18   6:00 PM   Cabofriense        Fluminense      (ID: g1w05s)
3/17/18   6:00 PM   Flamengo           Portuguesa      (ID: g1w058)
3/17/18   6:00 PM   Nova Iguacu        Macae           (ID: g1w05r)
3/17/18   6:00 PM   Volta Redonda      Boavista        (ID: g1w05h)
GamesEnd