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: CONCACAF 2018 WCQ Hexagonal Stage (CONCACAF 2018 WCQ) (ID: 1a1i3) (Sort: Div) (Playoffs: 3)
    Team: Costa Rica                                            (ID: t1r30)
    Team: Honduras                                              (ID: t1r31)
    Team: Mexico                                                (ID: t1r32)
    Team: Panama                                                (ID: t1r33)
    Team: Trinidad and Tobago               (T&T)               (ID: t1r34)
    Team: United States                     (USA)               (ID: t1r35)
  Kind: pro
  Sport: soccer
  Gender: male
  Country: CONCACAF 2018 WCQ
  State: 
  Level: A
  Season: 2018 (current: True)
  Author: Vinik
  Note: 
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, GoalsDelta, GoalsFor, Average Points HeadToHead,
GoalsDelta HeadToHead, GoalsFor HeadToHead, GoalsFor Away HeadToHead
SortEnd

RulesBegin
  PointsForWinInRegulation:  3
  PointsForWinInOvertime:  3
  PointsForWinInShootout:  3
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  1
  PercentOfGamesThatEndInTie:  0.258
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.7
  WeightType:  Pythagorean
  WeightExponent:  1.4
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  Advance to Next Stages
  Promote:  4
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Eliminated
  Demote:  0
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
11/11/16   Honduras     0-1   Panama       (ID: g1t77t)
11/11/16   T&T          0-2   Costa Rica   (ID: g1t77u)
11/11/16   USA          1-2   Mexico       (ID: g1t77v)
11/15/16   Costa Rica   4-0   USA          (ID: g1t77w)
11/15/16   Honduras     3-1   T&T          (ID: g1t77x)
11/15/16   Panama       0-0   Mexico       (ID: g1t77y)
3/24/17    Mexico       2-0   Costa Rica   (ID: g1t77z)
3/24/17    T&T          1-0   Panama       (ID: g1t780)
3/24/17    USA          6-0   Honduras     (ID: g1t781)
3/28/17    Honduras     1-1   Costa Rica   (ID: g1t782)
3/28/17    Panama       1-1   USA          (ID: g1t783)
3/28/17    T&T          0-1   Mexico       (ID: g1t784)
6/8/17     Costa Rica   0-0   Panama       (ID: g1t785)
6/8/17     Mexico       3-0   Honduras     (ID: g1t786)
6/8/17     USA          2-0   T&T          (ID: g1t787)
6/11/17    Mexico       1-1   USA          (ID: g1t789)
6/13/17    Costa Rica   2-1   T&T          (ID: g1t788)
6/13/17    Panama       2-2   Honduras     (ID: g1t78a)
9/1/17     Mexico       1-0   Panama       (ID: g1t78b)
9/1/17     T&T          1-2   Honduras     (ID: g1t78c)
9/1/17     USA          0-2   Costa Rica   (ID: g1t78d)
9/5/17     Costa Rica   1-1   Mexico       (ID: g1t78e)
9/5/17     Honduras     1-1   USA          (ID: g1t78f)
9/5/17     Panama       3-0   T&T          (ID: g1t78g)
10/6/17    Costa Rica   1-1   Honduras     (ID: g1t78h)
10/6/17    Mexico       3-1   T&T          (ID: g1t78i)
10/6/17    USA          4-0   Panama       (ID: g1t78j)
10/10/17   Honduras           Mexico       (ID: g1t78k)
10/10/17   Panama             Costa Rica   (ID: g1t78m)
10/10/17   T&T                USA          (ID: g1t78n)
GamesEnd