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: Canadian Premier League CONCACAF League Qualification (CanPL CL Qual) (ID: 1a1wh) (Sort: League) (Playoffs: 1)
    Team: FC Edmonton                                           (Edmonton)      (ID: t1wwv)
    Team: Forge FC                                              (Forge)         (ID: t1www)
    Team: Valour FC                                             (Valour)        (ID: t1wwz)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: Canada
  State: 
  Level: B
  Season: 2019 (current: True)
  Author: Grande
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
League: Points, Average GoalsDelta, Average GoalsFor, Average Points
HeadtoHead, Average GoalsDelta HeadtoHead, Average GoalsFor HeadtoHead,
DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.25
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5195
  WeightType:  Pythagorean
  WeightExponent:  1.4
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  CONCACAF League
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Wooden Spoon
  Demote:  1
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
5/4/19    Valour     1-2   Edmonton   (ID: g1yqx0)
5/16/19   Valour     0-2   Forge      (ID: g1yqx1)
5/29/19   Forge      2-0   Edmonton   (ID: g1yqx2)
6/2/19    Edmonton   0-1   Valour     (ID: g1yqx3)
6/15/19   Forge      2-1   Valour     (ID: g1yqx4)
6/26/19   Edmonton         Forge      (ID: g1yqx5)
GamesEnd