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: MHSAA 3A-3        (MS33) (ID: 1a11t) (Sort: Div) (Playoffs: 4)
    Team: East Side                (ID: t1hke)
    Team: Elzy                     (ID: t1hhs)
    Team: Humphreys County         (ID: t1hhu)
    Team: Ruleville Central        (ID: t1hhv)
    Team: Velma Jackson            (ID: t1hht)
    Team: Yazoo County             (ID: t1hhw)
  Kind: high school
  Sport: football
  Gender: male
  Country: USA
  State: MS
  Level: 3A
  Season: 2015 (current: True)
  Author: PMC
  Note: None.
  LotteryNote: 
LeagueEnd

SortBegin
Div: Wins, IfSomeTiesBrokenReturnHere, Wins HeadToHead, Wins
SameParent,Wins CommonOpponent, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.5
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.56
  WeightType:  Pythagorean
  WeightExponent:  2.37
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
10/2/15    Humphreys County       Ruleville Central   (ID: g1mpdy)
10/2/15    Velma Jackson          East Side           (ID: g1mpdz)
10/2/15    Yazoo County           Elzy                (ID: g1mpe0)
10/9/15    East Side              Humphreys County    (ID: g1mpe1)
10/9/15    Elzy                   Velma Jackson       (ID: g1mpe2)
10/9/15    Ruleville Central      Yazoo County        (ID: g1mpe3)
10/16/15   East Side              Elzy                (ID: g1mpe4)
10/16/15   Humphreys County       Yazoo County        (ID: g1mpe5)
10/16/15   Ruleville Central      Velma Jackson       (ID: g1mpe6)
10/23/15   Elzy                   Ruleville Central   (ID: g1mpe7)
10/23/15   Velma Jackson          Humphreys County    (ID: g1mpe8)
10/23/15   Yazoo County           East Side           (ID: g1mpe9)
10/30/15   East Side              Ruleville Central   (ID: g1mpea)
10/30/15   Humphreys County       Elzy                (ID: g1mpeb)
10/30/15   Yazoo County           Velma Jackson       (ID: g1mpec)
GamesEnd