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: Ivy League Football 2018 (Ivy 2018) (ID: 1av8) (Sort: Lottery) (Playoffs: 1)
    Team: Brown                               (ID: t1a0k)
    Team: Columbia                            (ID: t1a0q)
    Team: Cornell                             (ID: t1a0r)
    Team: Dartmouth                           (ID: t1a0m)
    Team: Harvard                             (ID: t1a0j)
    Team: Penn                                (ID: t1a0p)
    Team: Princeton                           (ID: t1a0n)
    Team: Yale                                (ID: t1a0i)
  Kind: college
  Sport: football
  Gender: male
  Country: USA
  State: CT
  Level: A
  Season: 2018 (current: True)
  Author: Walter Camp
  Note: None.
  LotteryNote: 
LeagueEnd

SortBegin
Lottery: Wins, DrawLots
SortEnd

RulesBegin
  PointsForWinInRegulation:  1
  PointsForWinInOvertime:  1
  PointsForWinInShootout:  1
  PointsForLossInRegulation:  0
  PointsForLossInOvertime:  0
  PointsForLossInShootout:  0
  PointsForTie:  0.5
  PercentOfGamesThatEndInTie:  0
  PercentOfGamesThatEndInOvertimeWin:  0
  PercentOfGamesThatEndInShootoutWin:  0
  HomeFieldAdvantage:  0.5
  WeightType:  Pythagenpat
  WeightExponent:  2.5
  WhatDoYouCallATie:  tie
  WhatDoYouCallLottery:  lottery
  WhatDoYouCallPromoted:  First Division
  Promote:  4
  PromotePlus:  0
  PromotePlusPercent:  0
  WhatDoYouCallDemoted:  Last Place
  Demote:  1
  DemotePlus:  0
  DemotePlusPercent:  0
RulesEnd

GamesBegin
TeamListedFirst: away
9/21/18    Harvard     31-17   Brown       (ID: g1y24m)
9/22/18    Yale        30-24   Cornell     (ID: g1y24n)
9/28/18    Princeton   45-10   Columbia    (ID: g1y24p)
9/29/18    Penn        14-37   Dartmouth   (ID: g1y24q)
10/5/18    Dartmouth   41-18   Yale        (ID: g1y24r)
10/6/18    Harvard     24-28   Cornell     (ID: g1y24s)
10/13/18   Columbia    10-13   Penn        (ID: g1y24t)
10/13/18   Brown       10-48   Princeton   (ID: g1y24u)
10/19/18   Yale        23-10   Penn        (ID: g1y24v)
10/20/18   Cornell     34-16   Brown       (ID: g1y24w)
10/20/18   Dartmouth   28-12   Columbia    (ID: g1y24x)
10/20/18   Princeton   29-21   Harvard     (ID: g1y24y)
10/27/18   Penn        13-7    Brown       (ID: g1y24z)
10/27/18   Yale        10-17   Columbia    (ID: g1y250)
10/27/18   Harvard     17-24   Dartmouth   (ID: g1y251)
10/27/18   Cornell     0-66    Princeton   (ID: g1y252)
11/2/18    Penn        20-7    Cornell     (ID: g1y253)
11/3/18    Columbia    18-52   Harvard     (ID: g1y254)
11/3/18    Dartmouth   9-14    Princeton   (ID: g1y255)
11/3/18    Brown       16-46   Yale        (ID: g1y256)
11/10/18   Columbia            Brown       (ID: g1y257)
11/10/18   Dartmouth           Cornell     (ID: g1y258)
11/10/18   Harvard             Penn        (ID: g1y259)
11/10/18   Princeton           Yale        (ID: g1y25a)
11/17/18   Cornell             Columbia    (ID: g1y25b)
11/17/18   Brown               Dartmouth   (ID: g1y25c)
11/17/18   Yale                Harvard     (ID: g1y25d)
11/17/18   Penn                Princeton   (ID: g1y25e)
GamesEnd