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: Rugby Championship (Rugby 2016) (ID: 1a1az) (Sort: Lottery) (Playoffs: 1)
    Team: Argentina                       (ID: t1mgt) (FairPlay: 7)
    Team: Australia                       (ID: t1mgu) (FairPlay: 8)
    Team: New Zealand                     (ID: t1mgv) (FairPlay: 24)
    Team: South Africa                    (ID: t1mgw) (FairPlay: 8)
  Kind: pro
  Sport: rugby
  Gender: male
  Country: SANZAAR
  State: 
  Level: A
  Season: 2016 (current: True)
  Author: Johkey3
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Lottery: Points, Wins, Wins HeadToHead, GoalsDelta, GoalsDelta HeadToHead,
Fairplay
SortEnd

RulesBegin
  PointsForWinInRegulation:  4
  PointsForWinInOvertime:  0
  PointsForWinInShootout:  0
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0.04761904762
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.58
  WeightType:  PercentOfPointsWon
  WeightExponent:  0.458
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Championship
  Promote:  1
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
8/20/16   Australia      8-42    New Zealand    (ID: g1qs26) (AwayBonus: 1)
8/20/16   South Africa   30-23   Argentina      (ID: g1qs27) (AwayBonus: 1)
8/27/16   Argentina      26-24   South Africa   (ID: g1qs28) (AwayBonus: 1)
8/27/16   New Zealand    29-9    Australia      (ID: g1qs29) (HomeBonus: 1)
9/10/16   Australia      23-17   South Africa   (ID: g1qs2a) (AwayBonus: 1)
9/10/16   New Zealand    57-22   Argentina      (ID: g1qs2b) (HomeBonus: 1)
9/17/16   Australia      36-20   Argentina      (ID: g1qs2c) (HomeBonus: 1)
9/17/16   New Zealand    41-13   South Africa   (ID: g1qs2d) (HomeBonus: 1)
10/1/16   Argentina              New Zealand    (ID: g1qs2e)
10/1/16   South Africa           Australia      (ID: g1qs2f)
10/8/16   Argentina              Australia      (ID: g1qs2g) (Neutral)
10/8/16   South Africa           New Zealand    (ID: g1qs2h)
GamesEnd