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: Old Guard Shield                               (ID: 1a1iy) (Sort: Div) (Playoffs: 1)
    Team: Charleston OGS Battery        (Battery)        (ID: t1r8r)
    Team: Harrisburg OGS City Islanders (City Islanders) (ID: t1r8s)
    Team: Richmond OGS Kickers          (Kickers)        (ID: t1r8t)
    Team: Rochester OGS Rhinos          (Rhinos)         (ID: t1r8u)
    Team: Pittsburgh OGS Riverhounds    (Riverhounds)    (ID: t1r8v)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: OldGuard
  State: 
  Level: S
  Season: 2017 (current: True)
  Author: Rob Hoffmann
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, Total Wins, GoalsDelta, GoalsFor, FairPlay, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.2405
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.6051
  WeightType:  PercentOfPointsWon
  WeightExponent:  0
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Champion
  Promote:  0
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
4/8/17    7:00 PM   Battery          1-2   Riverhounds      (ID: g1tj7f)
4/15/17   7:00 PM   Battery          5-0   Rhinos           (ID: g1tj7g)
4/22/17   5:00 PM   Kickers          2-1   Riverhounds      (ID: g1tj7h)
4/29/17   7:00 PM   Riverhounds      1-0   City Islanders   (ID: g1tj7i)
5/13/17   7:00 PM   Kickers          0-0   City Islanders   (ID: g1tj7j)
5/20/17   7:00 PM   City Islanders   2-2   Battery          (ID: g1tj7k)
5/21/17   4:05 PM   Rhinos           1-1   Kickers          (ID: g1tj7m)
7/8/17    6:05 PM   Rhinos           1-0   City Islanders   (ID: g1tj7n)
7/15/17   7:00 PM   City Islanders   1-0   Kickers          (ID: g1tj7p)
7/22/17   6:05 PM   Rhinos           0-0   Riverhounds      (ID: g1tj7q)
7/26/17   7:00 PM   Riverhounds      2-2   Battery          (ID: g1tj7r)
8/5/17    7:00 PM   Riverhounds      1-1   Kickers          (ID: g1tj7s)
8/8/17    7:00 PM   City Islanders   0-1   Rhinos           (ID: g1tj7t)
8/12/17   7:00 PM   City Islanders   0-3   Riverhounds      (ID: g1tj7u)
8/19/17   6:05 PM   Rhinos                 Battery          (ID: g1tj7v)
8/26/17   7:00 PM   Kickers                Battery          (ID: g1tj7w)
9/16/17   7:00 PM   Battery                Kickers          (ID: g1tj7x)
9/23/17   7:00 PM   Kickers                Rhinos           (ID: g1tj7y)
10/7/17   7:00 PM   Battery                City Islanders   (ID: g1tj7z)
10/7/17   7:00 PM   Riverhounds            Rhinos           (ID: g1tj80)
GamesEnd