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: DPC South America Lower Div (DPC SA Lower) (ID: 1a23v) (Sort: Conf) (Playoffs: 1)
    Team: 0-900                                      (ID: t110jf)
    Team: Crewmates                   (Crwmts)       (ID: t110jg)
    Team: Gorillaz-Pride              (GP)           (ID: t110jh)
    Team: Hokori                      (HKR)          (ID: t110ji)
    Team: Incubus Club                (Incubus)      (ID: t110jj)
    Team: Infinity Esports            (INF)          (ID: t110jk)
    Team: Inverse                                    (ID: t110jm)
    Team: Mad Kings                   (MK)           (ID: t110jn)
  Kind: pro
  Sport: dota
  Gender: coed
  Country: SA
  State: 
  Level: B
  Season: 2021Season1 (current: True)
  Author: Poddo
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Conf: Points
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  PercentOfPointsWon
  WeightExponent:  0
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Upper Division
  Promote:  2
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  demoted
  Demote:  2
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
1/18/21   HKR       2-1   Incubus   (ID: g111n1s)
1/21/21   Crwmts    0-2   GP        (ID: g111n1t)
1/21/21   INF       2-0   MK        (ID: g111n1u)
1/22/21   0-900     0-2   Inverse   (ID: g111n1v)
1/23/21   GP        0-2   Incubus   (ID: g111n1w)
1/25/21   0-900     0-2   HKR       (ID: g111n1x)
1/28/21   Crwmts    2-0   Inverse   (ID: g111n1y)
1/28/21   INF       1-2   Incubus   (ID: g111n1z)
1/29/21   HKR       2-0   MK        (ID: g111n20)
1/30/21   0-900     0-2   GP        (ID: g111n21)
2/1/21    Incubus   2-0   Inverse   (ID: g111n22)
2/4/21    HKR       2-0   Crwmts    (ID: g111n23)
2/4/21    MK        0-2   GP        (ID: g111n24)
2/5/21    INF       2-0   Inverse   (ID: g111n25)
2/6/21    0-900     0-2   Crwmts    (ID: g111n26)
2/8/21    0-900     0-2   INF       (ID: g111n27)
2/11/21   HKR       2-1   GP        (ID: g111n28)
2/11/21   MK        0-2   Inverse   (ID: g111n29)
2/12/21   INF       2-0   Crwmts    (ID: g111n2a)
2/13/21   MK        0-2   Incubus   (ID: g111n2b)
2/15/21   Incubus   2-0   Crwmts    (ID: g111n2c)
2/18/21   Crwmts    2-0   MK        (ID: g111n2d)
2/18/21   INF       2-1   HKR       (ID: g111n2e)
2/19/21   0-900     0-2   Incubus   (ID: g111n2i)
2/19/21   GP        2-0   Inverse   (ID: g111n2f)
2/20/21   0-900     0-2   MK        (ID: g111n2g)
2/22/21   GP              INF       (ID: g111n2h)
2/25/21   Inverse         HKR       (ID: g111n2j)
GamesEnd