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: WCC                       (ID: 1a1sn) (Sort: League) (Playoffs: 1)
    Team: Magnus Carlsen  (Carlsen) (ID: t1us2)
    Team: Fabiano Caruana (Caruana) (ID: t1us3)
  Kind: pro
  Sport: chess
  Gender: male
  Country: UK
  State: 
  Level: Top
  Season: 2018 (current: True)
  Author: Kevin Hartley
  Note: White is the "home team" and I need to work out the tiebreakers still.
  LotteryNote: 
LeagueEnd

SortBegin
League:

    Average Points,

    Average Points HeadToHead,

    Average Points CommonOpponentEqual,

    Average GoalsDelta HeadToHead,

    Average GoalsDelta,

    DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.5
  PercentOfGamesThatEndInTie:  0.436166229876451
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.487786824574389
  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: away
11/9/18    Carlsen      Caruana   (ID: g1wqp2)
11/10/18   Caruana      Carlsen   (ID: g1wqp3)
11/12/18   Carlsen      Caruana   (ID: g1wqp4)
11/13/18   Caruana      Carlsen   (ID: g1wqp5)
11/15/18   Carlsen      Caruana   (ID: g1wqp6)
11/16/18   Caruana      Carlsen   (ID: g1wqp7)
11/18/18   Carlsen      Caruana   (ID: g1wqp8)
11/19/18   Caruana      Carlsen   (ID: g1wqp9)
11/21/18   Carlsen      Caruana   (ID: g1wqpa)
11/25/18   Caruana      Carlsen   (ID: g1wqpb)
11/27/18   Carlsen      Caruana   (ID: g1wqpc)
11/28/18   Caruana      Carlsen   (ID: g1wqpd)
GamesEnd