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: Sports Forum Frisbee League (SFFL) Division: Major    (ID: 1ag6) (Sort: League) (ID: 1a177) (Sort: Div) (Playoffs: 3)
    Team: Brompton Blackout                                                (Brompton)     (ID: t17vj)
    Team: Las Vegas Dancers                                                (Las Vegas)    (ID: t17vk)
    Team: New Orleans Jazz                                                 (New Orleans)  (ID: t17vm)
    Team: Seattle Wind                                                     (Seattle)      (ID: t17vn)
  Kind: rec
  Sport: ultimate frisbee
  Gender: male
  Country: USA
  State: 
  Level: A
  Season: Season5 (current: True)
  Author: Wisky Wiskeh
  Note: Scores are updated daily by the league commissioner
  LotteryNote: We do not use lotteries in the SFFL!
LeagueEnd

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

Top4:
IfSomeTiesBrokenReturnHere,
DrawLots

Lottery:
GoalsDelta,
DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0.05
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagorean
  WeightExponent:  14
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: away
12/26/15   Seattle       8-16   Brompton      (ID: g1pkmk)
12/26/15   New Orleans   9-1    Seattle       (ID: g1pkmm)
12/30/15   Brompton      7-12   New Orleans   (ID: g1pkmn)
12/31/15   New Orleans   7-9    Brompton      (ID: g1pkmp)
1/8/16     Seattle       1-8    Las Vegas     (ID: g1pkmq)
1/17/16    Brompton      6-13   Seattle       (ID: g1pkmr)
1/23/16    Las Vegas     9-7    Brompton      (ID: g1pkms)
1/24/16    Brompton      8-10   Las Vegas     (ID: g1pkmt)
1/24/16    Seattle       1-15   New Orleans   (ID: g1pkmw)
1/25/16    Las Vegas     8-10   Seattle       (ID: g1pkmx)
1/26/16    New Orleans          Las Vegas     (ID: g1pkmu)
1/26/16    Las Vegas            New Orleans   (ID: g1pkmv)
GamesEnd