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 Upper Div (DPC South Ameri) (ID: 1a23q) (Sort: Conf) (Playoffs: 2)
    Team: beastcoast                  (bc)              (ID: t110hj)
    Team: Latam Defenders             (DEF)             (ID: t110hk)
    Team: EgoBoys                     (EGB)             (ID: t110hm)
    Team: Infamous                    (INF)             (ID: t110hn)
    Team: NoPing e-sports             (NoPing)          (ID: t110hp)
    Team: SG e-sports                 (SG)              (ID: t110hq)
    Team: Thunder Predator            (TP)              (ID: t110hr)
    Team: Team Unknown                (UNK)             (ID: t110hs)
  Kind: pro
  Sport: dota
  Gender: coed
  Country: SA
  State: 
  Level: A
  Season: 2021Season1 (current: True)
  Author: Poddo
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Conf: Seed [(1-8) Call Standard]
Standard: Points, Points HeadToHead, GoalsDelta HeadToHead, GoalsFor
HeadToHead, DrawLots
Bubble: Points, (side) DrawLots, Playoff
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:  Major Playoff
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  demoted
  Demote:  2
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
1/20/21   bc       2-0   EGB      (ID: g111n3e)
1/20/21   NoPing   1-2   SG       (ID: g111n3f)
1/22/21   EGB      1-2   DEF      (ID: g111n3g)
1/22/21   INF      2-0   TP       (ID: g111n3h)
1/23/21   bc       2-0   UNK      (ID: g111n3i)
1/27/21   EGB      2-1   NoPing   (ID: g111n3j)
1/27/21   UNK      1-2   TP       (ID: g111n3k)
1/29/21   bc       2-0   DEF      (ID: g111n3m)
1/29/21   INF      0-2   UNK      (ID: g111n3n)
1/30/21   SG       0-2   TP       (ID: g111n3p)
2/3/21    DEF      1-2   NoPing   (ID: g111n3q)
2/3/21    INF      0-2   SG       (ID: g111n3r)
2/5/21    bc       2-0   TP       (ID: g111n3s)
2/5/21    EGB      0-2   UNK      (ID: g111n3t)
2/6/21    DEF      0-2   SG       (ID: g111n3u)
2/10/21   bc       2-0   INF      (ID: g111n3v)
2/10/21   NoPing   1-2   TP       (ID: g111n3w)
2/12/21   DEF      0-2   UNK      (ID: g111n3x)
2/12/21   EGB      2-0   SG       (ID: g111n3y)
2/13/21   INF      1-2   NoPing   (ID: g111n3z)
2/17/21   EGB      0-2   TP       (ID: g111n40)
2/17/21   UNK      0-2   NoPing   (ID: g111n41)
2/19/21   INF      2-0   DEF      (ID: g111n42)
2/19/21   NoPing   2-0   bc       (ID: g111n43)
2/20/21   UNK      1-2   SG       (ID: g111n44)
2/24/21   INF            EGB      (ID: g111n45)
2/24/21   TP             DEF      (ID: g111n46)
2/26/21   bc             SG       (ID: g111n47)
GamesEnd