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:       New England Senior Hockey League - South Boston (NESHL-South Boston)       (ID: 1a18i) (Sort: Lottery)
    Conference: B                                                                          (ID: d15mm) (Sort: Conf) (Playoffs: 10)
      Team:     ATC Jets                                        (ATCJets)                  (ID: t1xy4)
      Team:     Bash Bros                                       (BashBros)                 (ID: t1xy5)
      Team:     Bevman                                                                     (ID: t1xy6)
      Team:     Blackbeers                                                                 (ID: t1xy7)
      Team:     Brewskis                                                                   (ID: t1x84)
      Team:     Ducks                                                                      (ID: t1wjs)
      Team:     Haulers                                                                    (ID: t1khv)
      Team:     Kill Test                                       (KillTest)                 (ID: t1xyc)
      Team:     Lucky Dawgs                                     (LuckyDawgs)               (ID: t1x7y)
      Team:     Rippers                                                                    (ID: t1wkd)
      Team:     SS Flyers                                       (SSFlyers)                 (ID: t1xyf)
      Team:     Woodford Law Boxers                             (WoodfordLawBoxers)        (ID: t1kit)
    Conference: C                                                                          (ID: d15t6) (Sort: Conf) (Playoffs: 4)
      Team:     Dynamo                                                                     (ID: t1xy8)
      Team:     Hot Nut                                         (HotNut)                   (ID: t1xya)
      Team:     Jagr Bombs                                      (JagrBombs)                (ID: t1xyb)
      Team:     Silky Mitts                                     (SilkyMitts)               (ID: t1xye)
      Team:     Surge                                                                      (ID: t1xyg)
      Team:     WFD                                                                        (ID: t1xyh)
    Conference: D                                                                          (ID: d15t7) (Sort: Conf) (Playoffs: 17)
      Team:     Chiefs                                                                     (ID: t1wjn)
      Team:     Cyclones                                                                   (ID: t1y36)
      Team:     Fighting Squirrels                              (FightingSquirrels)        (ID: t1wjv)
      Team:     GLP                                                                        (ID: t1x8k)
      Team:     Goon Squad                                      (GoonSquad)                (ID: t1xy9)
      Team:     High & Wide                                     (HighWide)                 (ID: t1xyr)
      Team:     Hogbuffs                                                                   (ID: t1wjz)
      Team:     Ice Age                                         (IceAge)                   (ID: t1wk3)
      Team:     Magoos                                                                     (ID: t1x7s)
      Team:     Moose Knuckles                                  (MooseKnuckles)            (ID: t1wk6)
      Team:     Rangers                                                                    (ID: t1wkb)
      Team:     Rockland Liquors                                (RocklandLiquors)          (ID: t1x7t)
      Team:     Royal Dangle Berries                            (RoyalDangleBerries)       (ID: t1wke)
      Team:     Sharks                                                                     (ID: t1xyd)
      Team:     Sullivans                                                                  (ID: t1wkk)
      Team:     Surge South                                     (SurgeSouth)               (ID: t1xap)
      Team:     Three Fat Guys & One Skinny Guy                 (ThreeFatGuysOneSkinnyGuy) (ID: t1wkp)
      Team:     Ticklefight                                                                (ID: t1wkq)
      Team:     Triceratopshelf                                                            (ID: t1xyq)
  Kind: rec
  Sport: hockey
  Gender: coed
  Country: USA
  State: MA
  Level: Adult
  Season: SBSummer2019 (current: True)
  Author: Jason Breslau
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div:     Points, Average Points HeadToHead, Least GoalsAgainst, Wins, Least Losses, GoalsFor, GoalsDelta
Conf:    Points, Average Points HeadToHead, Least GoalsAgainst, Wins, Least Losses, GoalsFor, GoalsDelta
Lottery: Points, Average Points HeadToHead, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  2
  PointsForWinInOvertime:  2
  PointsForWinInShootout:  2
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  1
  PointsForLossInShootout:  1
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.1
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  PythagenpatIgnoreShootOutWinningGoals
  WeightExponent:  0.458
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Chowder Cup
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
10/7/19    Magoos                        Hogbuffs             (ID: g1zcf6)
10/7/19    SurgeSouth                    Sullivans            (ID: g1zqyt)
10/8/19    Ducks                         HotNut               (ID: g1zqyu)
10/8/19    Rangers                       RoyalDangleBerries   (ID: g1zqyv)
10/9/19    GLP                           Chiefs               (ID: g1zqyw)
10/9/19    JagrBombs                     Dynamo               (ID: g1zqyx)
10/9/19    ThreeFatGuysOneSkinnyGuy      Ticklefight          (ID: g1zqyy)
10/10/19   BashBros                      ATCJets              (ID: g1zqyz)
10/10/19   MooseKnuckles                 GoonSquad            (ID: g1zqz0)
10/10/19   Rippers                       SSFlyers             (ID: g1zqz1)
10/10/19   Sharks                        IceAge               (ID: g1zqz2)
GamesEnd