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: 2017-2018 SCAHA Bantam A Playoffs RR (SCAHABTMAPRR) (ID: 1a1s8) (Sort: league) (Playoffs: 2)
    Team: California Golden Bears              (Bears)        (ID: t1ugs)
    Team: California Heat                      (Heat)         (ID: t1ugt)
    Team: Pasadena Maple Leafs                 (Leafs)        (ID: t1ugu)
    Team: Seed 5 TBD                           (Seed5)        (ID: t1ugv)
  Kind: rec
  Sport: hockey
  Gender: coed
  Country: USA
  State: CA
  Level: A
  Season: 2018 (current: True)
  Author: 
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
League: points, Greatest average Points, wins, SweptAll, Average Points
HeadtoHead, GoalsDelta, GoalsFor, Least GoalsAgainst, drawlots
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  2
  PointsForWinInShootout:  2
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  1
  PointsForLossInShootout:  1
  PointsForTie:  0
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0.17
  PercentOfGamesThatEndInShootoutWin:  0.17
  HomeFieldAdvantage:  0.5
  WeightType:  PercentOfPointsWon
  WeightExponent:  0
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
3/3/18   Bears      Heat    (ID: g1wekp)
3/3/18   Heat       Leafs   (ID: g1wekq)
3/3/18   Seed5      Bears   (ID: g1wekr)
3/4/18   Bears      Leafs   (ID: g1weks)
3/4/18   Leafs      Seed5   (ID: g1wekt)
3/4/18   Seed5      Heat    (ID: g1weku)
GamesEnd