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: Major League Rugby (Major Rugby) (ID: 1aez) (Sort: Div) (Playoffs: 4)
    Team: Austin Elite       (Austin)      (ID: t1v6p)
    Team: Glendale Raptors   (Glendale)    (ID: t1v6q)
    Team: Houston SaberCats  (Houston)     (ID: t1v6r)
    Team: New Orleans Gold   (New Orleans) (ID: t1v6s)
    Team: San Diego Legion   (San Diego)   (ID: t1v6t)
    Team: Seattle Seawolves  (Seattle)     (ID: t1v6u)
    Team: Utah Warriors      (Utah)        (ID: t1v6v)
  Kind: pro
  Sport: rugby
  Gender: male
  Country: USA
  State: 
  Level: A
  Season: 2018 (current: True)
  Author: Matt Grande
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, GoalsDelta, GoalsFor, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  4
  PointsForWinInOvertime:  4
  PointsForWinInShootout:  4
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.667
  WeightType:  PercentOfPointsWon
  WeightExponent:  0
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Champion
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Wooden Spoon
  Demote:  1
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
4/21/18   Glendale      41-26   Austin        (ID: g1x9dr) (HomeBonus: 1) (AwayBonus: 1)
4/21/18   Houston       26-35   New Orleans   (ID: g1x9ds) (HomeBonus: 1) (AwayBonus: 1)
4/22/18   Seattle       39-23   San Diego     (ID: g1x9dt) (HomeBonus: 1)
4/28/18   Houston       50-38   Austin        (ID: g1x9du) (HomeBonus: 1) (AwayBonus: 1)
4/28/18   San Diego     31-24   Utah          (ID: g1x9dv) (HomeBonus: 1) (AwayBonus: 1)
4/28/18   Seattle       15-19   Glendale      (ID: g1x9dw) (HomeBonus: 1)
5/3/18    Austin                New Orleans   (ID: g1x9dx)
5/4/18    San Diego             Houston       (ID: g1x9dy)
5/5/18    Utah                  Glendale      (ID: g1x9dz)
5/12/18   New Orleans           Seattle       (ID: g1x9e0)
5/12/18   Utah                  Austin        (ID: g1x9e1)
5/13/18   Glendale              San Diego     (ID: g1x9e2)
5/19/18   New Orleans           Houston       (ID: g1x9e3)
5/20/18   Seattle               Utah          (ID: g1x9eh)
5/25/18   Seattle               New Orleans   (ID: g1x9ei)
5/26/18   Austin                San Diego     (ID: g1x9e4)
5/26/18   Houston               Utah          (ID: g1x9e5)
5/26/18   San Diego             Glendale      (ID: g1x9e6)
6/2/18    Austin                Utah          (ID: g1x9e7)
6/2/18    Houston               Seattle       (ID: g1x9e8)
6/3/18    New Orleans           Glendale      (ID: g1x9e9)
6/8/18    Glendale              Houston       (ID: g1x9ea)
6/9/18    Austin                Seattle       (ID: g1x9eb)
6/9/18    New Orleans           San Diego     (ID: g1x9ec)
6/16/18   Glendale              Seattle       (ID: g1x9ed)
6/16/18   Utah                  New Orleans   (ID: g1x9ee)
6/17/18   San Diego             Austin        (ID: g1x9ef)
6/23/18   Utah                  Houston       (ID: g1x9eg)
GamesEnd