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: GYSA BU18 Classic I              (GYSA BU18 Class) (ID: 1a1ca) (Sort: Div) (Playoffs: 1)
    Team: Atlanta Fire - 1999 Elite        (Atlanta Fire -)  (ID: t1ngz)
    Team: GS 99B Gold                                        (ID: t1nh0)
    Team: GSA 99 Premier                                     (ID: t1nh1)
    Team: Impact SC 99B Elite              (Impact SC 99B E) (ID: t1nh2)
    Team: Inter Atlanta FC 99B Blues Elite (Inter Atlanta F) (ID: t1nh3)
    Team: KSA 99 Elite                                       (ID: t1nh4)
    Team: SSA Che Eli                                        (ID: t1nh5)
    Team: SSA Che Pre Bl                                     (ID: t1nh6)
    Team: UFA 99B Red                                        (ID: t1nh7)
    Team: UFA Norcross 99B Premier         (UFA Norcross 99) (ID: t1nh8)
  Kind: rec
  Sport: soccer
  Gender: male
  Country: USA
  State: GA
  Level: Division 1
  Season: Fall2016 (current: True)
  Author: CT
  Note: Unofficial
  LotteryNote: 
LeagueEnd

SortBegin
Div: Points, GoalsDelta, Least GoalsAgainst
SortEnd

RulesBegin
  PointsForWinInRegulation:  5
  PointsForWinInOvertime:  5
  PointsForWinInShootout:  5
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  2
  PercentOfGamesThatEndInTie:  0.16
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagenpat
  WeightExponent:  0.6
  WhatDoYouCallATie:  draw
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  promoted
  Promote:  2
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  relegated
  Demote:  2
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: home
9/10/16    11:00 AM   SSA Che Eli       0-1   GS 99B Gold       (ID: g1rdy9)
9/10/16    3:00 PM    GSA 99 Premier    1-1   Inter Atlanta F   (ID: g1rdya)
9/10/16    3:00 PM    UFA Norcross 99   6-1   Impact SC 99B E   (ID: g1rdyb)
9/11/16    4:30 PM    Inter Atlanta F   3-1   Impact SC 99B E   (ID: g1rdyc)
9/11/16    5:00 PM    UFA 99B Red       2-2   SSA Che Eli       (ID: g1rdyd)
9/17/16    3:00 PM    KSA 99 Elite      1-3   Atlanta Fire -    (ID: g1rdye)
9/17/16    5:15 PM    SSA Che Pre Bl    2-4   UFA Norcross 99   (ID: g1rdyf)
9/18/16    11:00 AM   KSA 99 Elite      1-3   GS 99B Gold       (ID: g1rdyg)
9/18/16    5:00 PM    UFA Norcross 99   1-0   Atlanta Fire -    (ID: g1rdyi)
9/24/16    6:30 PM    UFA Norcross 99   1-2   GS 99B Gold       (ID: g1rdyj)
9/24/16    7:00 PM    Inter Atlanta F   1-0   SSA Che Pre Bl    (ID: g1rdyk)
9/30/16    7:30 PM    SSA Che Eli       6-2   SSA Che Pre Bl    (ID: g1rdym)
10/1/16    9:00 AM    GSA 99 Premier    2-0   KSA 99 Elite      (ID: g1rdyn)
10/1/16    4:30 PM    GS 99B Gold       1-4   Inter Atlanta F   (ID: g1rdyp)
10/2/16    3:00 PM    Atlanta Fire -    3-5   UFA 99B Red       (ID: g1rdyq)
10/2/16    5:30 PM    GS 99B Gold       1-0   Impact SC 99B E   (ID: g1rdyr)
10/8/16    9:30 AM    Impact SC 99B E   2-0   KSA 99 Elite      (ID: g1rdys)
10/8/16    3:00 PM    GSA 99 Premier    2-2   UFA 99B Red       (ID: g1rdyt)
10/9/16    1:00 PM    KSA 99 Elite      0-3   SSA Che Eli       (ID: g1rdyu)
10/9/16    1:45 PM    Impact SC 99B E   1-4   UFA 99B Red       (ID: g1rdyv)
10/15/16   2:30 PM    GSA 99 Premier    1-1   Atlanta Fire -    (ID: g1rdyx)
10/15/16   2:30 PM    Inter Atlanta F   0-2   UFA Norcross 99   (ID: g1rdyw)
10/15/16   5:00 PM    KSA 99 Elite      0-0   SSA Che Pre Bl    (ID: g1rdyy)
10/16/16   1:00 PM    Atlanta Fire -    2-2   GS 99B Gold       (ID: g1rdyz)
10/16/16   5:00 PM    SSA Che Pre Bl    1-3   Impact SC 99B E   (ID: g1rdz0)
10/16/16   7:00 PM    UFA 99B Red       6-1   KSA 99 Elite      (ID: g1rdz1)
10/22/16   1:00 PM    Impact SC 99B E   3-1   GSA 99 Premier    (ID: g1rdz3)
10/23/16   11:00 AM   SSA Che Eli       0-2   GSA 99 Premier    (ID: g1rdyh)
10/23/16   5:00 PM    SSA Che Pre Bl    1-4   UFA 99B Red       (ID: g1rdz4)
10/29/16   9:00 AM    Impact SC 99B E   2-0   Atlanta Fire -    (ID: g1rdz5)
10/29/16   3:00 PM    SSA Che Pre Bl    2-2   GSA 99 Premier    (ID: g1rdz6)
10/29/16   5:00 PM    GS 99B Gold       1-5   UFA 99B Red       (ID: g1rdz7)
10/29/16   7:00 PM    SSA Che Eli       2-1   Inter Atlanta F   (ID: g1rdz8)
10/30/16   5:00 PM    SSA Che Eli       1-3   UFA Norcross 99   (ID: g1rdz9)
11/5/16    1:00 PM    GSA 99 Premier          GS 99B Gold       (ID: g1rdza)
11/5/16    4:30 PM    Atlanta Fire -          SSA Che Eli       (ID: g1rdzb)
11/5/16    4:30 PM    UFA Norcross 99         KSA 99 Elite      (ID: g1rdzc)
11/6/16    12:00 PM   Impact SC 99B E         SSA Che Eli       (ID: g1rdzd)
11/6/16    3:00 PM    Atlanta Fire -          Inter Atlanta F   (ID: g1rdz2)
11/12/16   11:00 AM   SSA Che Pre Bl          Atlanta Fire -    (ID: g1rdze)
11/12/16   3:00 PM    UFA 99B Red             UFA Norcross 99   (ID: g1rdzf)
11/12/16   6:00 PM    Inter Atlanta F         KSA 99 Elite      (ID: g1rdzg)
11/13/16   9:00 AM    UFA 99B Red             Inter Atlanta F   (ID: g1rdzh)
11/13/16   1:00 PM    UFA Norcross 99         GSA 99 Premier    (ID: g1rdzi)
11/13/16   5:30 PM    GS 99B Gold             SSA Che Pre Bl    (ID: g1rdzj)
GamesEnd