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: OWVAA Season 2                          (ID: 1a1xy) (Sort: League) (Playoffs: 10)
    Team: The Alexyoshis        (Alexyoshis)      (ID: t1xk0)
    Team: Ascendancy                              (ID: t1xk1)
    Team: Astral                                  (ID: t1xk2)
    Team: Chivalrous                              (ID: t1xk3)
    Team: Cosmic                                  (ID: t1xk4)
    Team: ExPandable Bamboozler (ExPandable Bamb) (ID: t1xk5)
    Team: Frantic LavaCats                        (ID: t1xk6)
    Team: The Golden Boys       (Golden Boys)     (ID: t1xk7)
    Team: Lijiang Legion                          (ID: t1xk8)
    Team: Nano Me! Academy                        (ID: t1xk9)
    Team: No Potential                            (ID: t1xka)
    Team: One Last Ride                           (ID: t1xkb)
    Team: RGT                                     (ID: t1xkc)
    Team: Safe Haven                              (ID: t1xkd)
    Team: Storm eSports                           (ID: t1xke)
    Team: Team Rage                               (ID: t1xkf)
  Kind: rec
  Sport: overwatch
  Gender: coed
  Country: USA
  State: 
  Level: T4
  Season: 2019 (current: True)
  Author: Alexyoshi
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
League: Points, GoalsDelta, Average Points HeadToHead, Playoff, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.5
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0.2
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagenpat
  WeightExponent:  0.208
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Bye
  Promote:  2
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
7/21/19   7:00 PM   Astral             2-1        One Last Ride      (ID: g1zfpa)
7/21/19   7:00 PM   ExPandable Bamb    2-3 (ot)   Lijiang Legion     (ID: g1zfpb)
7/21/19   7:00 PM   Frantic LavaCats   4-0        Safe Haven         (ID: g1zfpc)
7/21/19   7:00 PM   Golden Boys        4-0        Team Rage          (ID: g1zfpd)
7/21/19   7:00 PM   Nano Me! Academy   3-1        Alexyoshis         (ID: g1zfpe)
7/21/19   7:00 PM   No Potential       4-0        Chivalrous         (ID: g1zfpf)
7/21/19   7:00 PM   RGT                0-4        Ascendancy         (ID: g1zfpg)
7/21/19   7:00 PM   Storm eSports      0-4        Cosmic             (ID: g1zfph)
7/28/19   7:00 PM   Alexyoshis         3-1        No Potential       (ID: g1zfpi)
7/28/19   7:00 PM   Ascendancy         4-0        ExPandable Bamb    (ID: g1zfpj)
7/28/19   7:00 PM   Chivalrous         0-4        Cosmic             (ID: g1zfpk)
7/28/19   7:00 PM   Frantic LavaCats   4-0        RGT                (ID: g1zfpm)
7/28/19   7:00 PM   Lijiang Legion     0-4        Astral             (ID: g1zfpn)
7/28/19   7:00 PM   One Last Ride      1-3        Nano Me! Academy   (ID: g1zfpp)
7/28/19   7:00 PM   Safe Haven         0-3        Golden Boys        (ID: g1zfpq)
7/28/19   7:00 PM   Team Rage          4-0        Storm eSports      (ID: g1zfpr)
8/3/19    7:00 PM   Alexyoshis         0-4        One Last Ride      (ID: g1zfps)
8/3/19    7:00 PM   Astral             4-0        Ascendancy         (ID: g1zfpt)
8/3/19    7:00 PM   Chivalrous         0-4        Team Rage          (ID: g1zfpu)
8/3/19    7:00 PM   Cosmic             0-4        No Potential       (ID: g1zfpv)
8/3/19    7:00 PM   ExPandable Bamb    0-4        Frantic LavaCats   (ID: g1zfpw)
8/3/19    7:00 PM   Golden Boys        4-0        RGT                (ID: g1zfpx)
8/3/19    7:00 PM   Nano Me! Academy   4-0        Lijiang Legion     (ID: g1zfpy)
8/3/19    7:00 PM   Storm eSports      4-0        Safe Haven         (ID: g1zfpz)
8/10/19   7:00 PM   Ascendancy         3-1        Nano Me! Academy   (ID: g1zfq0)
8/10/19   7:00 PM   Cosmic             0-4        Team Rage          (ID: g1zfq1)
8/10/19   7:00 PM   Frantic LavaCats   3-2        Astral             (ID: g1zfq3)
8/10/19   7:00 PM   No Potential       4-0        One Last Ride      (ID: g1zfq5)
8/10/19   7:00 PM   Safe Haven         0-4        Chivalrous         (ID: g1zfq7)
8/13/19   7:00 PM   RGT                4-0        Storm eSports      (ID: g1zfq6)
8/13/19   9:00 PM   Lijiang Legion     1-3        Alexyoshis         (ID: g1zfq4)
8/14/19   7:00 PM   ExPandable Bamb    0-4        Golden Boys        (ID: g1zfq2)
8/17/19   7:00 PM   Ascendancy         4-0        Alexyoshis         (ID: g1zfq8)
8/17/19   7:00 PM   Astral                        Golden Boys        (ID: g1zfq9)
8/17/19   7:00 PM   Chivalrous         0-4        RGT                (ID: g1zfqa)
8/17/19   7:00 PM   Cosmic             4-0        Safe Haven         (ID: g1zfqb)
8/17/19   7:00 PM   Nano Me! Academy   3-1        Frantic LavaCats   (ID: g1zfqc)
8/17/19   7:00 PM   One Last Ride      0-4        Lijiang Legion     (ID: g1zfqd)
8/17/19   7:00 PM   Storm eSports      0-4        ExPandable Bamb    (ID: g1zfqe)
8/17/19   7:00 PM   Team Rage          0-4        No Potential       (ID: g1zfqf)
GamesEnd