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:       NHL Stanley Cup Playoffs (NHL Stanley Cup) (ID: 1aqa) (Sort: league)
    Conference: Eastern Conference       (Eastern)         (ID: d125x) (Sort: Conf) (Playoffs: 2)
      Division: Eastern E                                  (ID: d126u) (Sort: Div) (Playoffs: 1)
        Team:   Boston Bruins            (Boston)          (ID: t1b51)
        Team:   Montreal Canadiens       (Montreal)        (ID: t1b59)
      Division: Eastern F                                  (ID: d126v) (Sort: Div) (Playoffs: 1)
        Team:   New York Rangers         (NY Rangers)      (ID: t1b5a)
        Team:   Pittsburgh Penguins      (Pittsburgh)      (ID: t1b5c)
    Conference: Western Conference       (Western)         (ID: d1262) (Sort: Conf) (Playoffs: 2)
      Division: Western E                                  (ID: d126w) (Sort: Div) (Playoffs: 1)
        Team:   Chicago Blackhawks       (Chicago)         (ID: t1b52)
        Team:   Minnesota Wild           (Minnesota)       (ID: t1b58)
      Division: Western F                                  (ID: d126x) (Sort: Div) (Playoffs: 1)
        Team:   Anaheim Ducks            (Anaheim)         (ID: t1b50)
        Team:   Los Angeles Kings        (Los Angeles)     (ID: t1b57)
  Kind: fantasy
  Sport: hockey
  Gender: male
  Country: Canada
  State: 
  Level: A
  Season: 2014R2 (current: True)
  Author: Noah Gilbert
  Note: Scores are updated when available<br/>Teams who win four games first will advance to next round/win the Stanley Cup.
  LotteryNote: None
LeagueEnd

SortBegin
League:
Points,
Average Points HeadToHead,
DrawLots
Div:
IfSomeTiesBrokenReturnHere,
GoalsDelta,
GoalsFor,
Playoff
Conf:
(Side) MoveClinchedToFront,
Seed [(4-End) Call Div][(1-4) Call Top4]

Top4:
IfSomeTiesBrokenReturnHere,
Average Points,
Least PositionInParent,
Average Points HeadToHead,
If [(All=SameParent) Average Points SameParent],
Average Points SameGrandParent,
Average Points PlayoffEligible SameGrandParent,
If [(Size=2) Average Points PlayoffEligible DifferentGrandParent],
GoalsDelta,
DrawLots

Lottery:
GoalsDelta,
DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0.120237087214225
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.56
  WeightType:  Pythagorean
  WeightExponent:  14
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Conf Finals
  Promote:  4
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Eliminated
  Demote:  4
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: away
5/1/14    Montreal      4-3 (ot)   Boston        (ID: g1fgvs)
5/2/14    Minnesota     2-5        Chicago       (ID: g1fgvt)
5/2/14    NY Rangers    3-2 (ot)   Pittsburgh    (ID: g1fgvu)
5/3/14    Los Angeles   3-2 (ot)   Anaheim       (ID: g1fgvv)
5/3/14    Montreal      3-5        Boston        (ID: g1fgvw)
5/4/14    Minnesota     1-4        Chicago       (ID: g1fgvx)
5/4/14    NY Rangers    0-3        Pittsburgh    (ID: g1fgvy)
5/5/14    Los Angeles              Anaheim       (ID: g1fgvz)
5/5/14    Pittsburgh               NY Rangers    (ID: g1fgw0)
5/6/14    Chicago                  Minnesota     (ID: g1fgw1)
5/6/14    Boston                   Montreal      (ID: g1fgw2)
5/7/14    Pittsburgh               NY Rangers    (ID: g1fgw3)
5/8/14    Anaheim                  Los Angeles   (ID: g1fgw4)
5/8/14    Boston                   Montreal      (ID: g1fgw5)
5/9/14    Chicago                  Minnesota     (ID: g1fgw6)
5/9/14    NY Rangers               Pittsburgh    (ID: g1fgw7)
5/10/14   Montreal                 Boston        (ID: g1fgw8)
5/10/14   Anaheim                  Los Angeles   (ID: g1fgw9)
5/11/14   Minnesota                Chicago       (ID: g1fgwa)
5/11/14   Pittsburgh               NY Rangers    (ID: g1fgwb)
5/12/14   Los Angeles              Anaheim       (ID: g1fgwc)
5/12/14   Boston                   Montreal      (ID: g1fgwd)
5/13/14   Chicago                  Minnesota     (ID: g1fgwe)
5/13/14   NY Rangers               Pittsburgh    (ID: g1fgwf)
5/14/14   Montreal                 Boston        (ID: g1fgwg)
5/14/14   Anaheim                  Los Angeles   (ID: g1fgwh)
5/15/14   Minnesota                Chicago       (ID: g1fgwi)
5/16/14   Los Angeles              Anaheim       (ID: g1fgwj)
GamesEnd