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: PRO Rugby          (ID: 1aez) (Sort: League) (Playoffs: 1)
    Team: Denver             (ID: t1m45)
    Team: Ohio               (ID: t1m46)
    Team: Sacramento         (ID: t1m47)
    Team: San Diego     (SD) (ID: t1m48)
    Team: San Francisco (SF) (ID: t1m49)
  Kind: pro
  Sport: rugby
  Gender: male
  Country: USA
  State: 
  Level: A
  Season: 2016 (current: True)
  Author: Matt Grande
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
League: Points, GoalsDelta, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  4
  PointsForWinInOvertime:  4
  PointsForWinInShootout:  4
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0.028
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  PercentOfPointsWon
  WeightExponent:  0.458
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
4/17/16   Denver       37-25   Ohio         (ID: g1qc7q) (AwayBonus: 1)
4/17/16   Sacramento   37-25   SF           (ID: g1qc7r) (HomeBonus: 1)
4/23/16   SD           37-24   Sacramento   (ID: g1qc7s) (HomeBonus: 1)
4/24/16   SF           18-35   Denver       (ID: g1qc7t) (AwayBonus: 1)
5/1/16    Ohio         51-17   SF           (ID: g1qc7u) (HomeBonus: 1)
5/1/16    SD           16-22   Denver       (ID: g1qc7v) (HomeBonus: 1)
5/8/16    Sacramento   11-31   Ohio         (ID: g1qc7w) (AwayBonus: 1)
5/8/16    SF           33-46   SD           (ID: g1qc7x) (HomeBonus: 1) (AwayBonus: 1)
5/15/16   Sacramento   13-35   Denver       (ID: g1qc7y) (AwayBonus: 1)
5/15/16   SD           24-20   Ohio         (ID: g1qc7z) (AwayBonus: 1)
5/20/16   Denver               SF           (ID: g1qc80)
5/22/16   Ohio                 Sacramento   (ID: g1qc81)
5/28/16   SD                   Sacramento   (ID: g1qc82)
5/29/16   SF                   Ohio         (ID: g1qc83)
6/5/16    SD                   Denver       (ID: g1qc84)
6/12/16   Ohio                 SD           (ID: g1qc85)
6/18/16   SD                   SF           (ID: g1qc86)
6/19/16   Denver               Ohio         (ID: g1qc87)
6/26/16   Denver               Sacramento   (ID: g1qc88)
6/26/16   Ohio                 SF           (ID: g1qc89)
7/3/16    Ohio                 SD           (ID: g1qc8a)
7/3/16    SF                   Sacramento   (ID: g1qc8b)
7/9/16    Sacramento           Ohio         (ID: g1qc8c)
7/10/16   Denver               SD           (ID: g1qc8d)
7/16/16   SF                   SD           (ID: g1qc8e)
7/17/16   Denver               Sacramento   (ID: g1qc8f)
7/23/16   Sacramento           SD           (ID: g1qc8g)
7/24/16   SF                   Denver       (ID: g1qc8h)
7/30/16   Sacramento           SF           (ID: g1qc8i)
7/31/16   Ohio                 Denver       (ID: g1qc8j)
GamesEnd