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IDP League Trends on Sleeper

How do IDP leagues actually configure their rosters and scoring? We crawled the Sleeper ecosystem starting from our synced leagues, following league members to discover their other leagues via BFS traversal.

16,684 leagues found · 4,006 have IDP · Last updated 2026-11-01

IDP Leagues Found

4,006

of 16,684 (24%)

Median IDP Starters

7

slots per league

Most Common Setup

8 IDP

mode value

Have IDP_FLEX

90.9%

of IDP leagues

Dynasty Leagues

82.6%

of IDP leagues

SuperFlex + IDP

70.8%

of IDP leagues

IDP Starter Slots

Distribution of IDP starter slot counts across leagues

1
205 (5.1%)
2
192 (4.8%)
3
254 (6.3%)
4
352 (8.8%)
5
312 (7.8%)
6
382 (9.5%)
7
340 (8.5%)
8
512 (12.8%)
9
279 (7%)
10
220 (5.5%)
11
479 (12%)
12
257 (6.4%)
13+
222 (5.1%)

Wild outliers from the dataset

  • One 4-team league runs 72 IDP starter slots. Seventy-two.
  • One family of leagues averages 52 IDP slots across 5 linked leagues. Respect the commitment.
  • A 4-team league starts 184 offensive + 30 IDP players per roster. The entire NFL is spoken for.

IDP Scoring Settings

How leagues score defensive stats — range and most common values

StatMost CommonMedian
Solo Tackle2(62.6%)2
Assisted Tackle1(63%)1
Sack6(56.7%)6
Interception6(65.5%)6
Forced Fumble3(66.3%)3
Fumble Recovery3(71.6%)3
Pass Defended3(64.3%)3
Safety3(60.2%)3
Defensive TD6(90%)6
Blocked Kick3(68.6%)3
Tackle for Loss2(71.5%)2
QB Hit1(69.6%)1
Total Tackle0(44.2%)0.5

Wild outliers from the dataset

  • One 12-team league scores sacks at 358,368 points each.
  • A 32-team league scores interceptions at -83 points. Defensive players are punished for doing their job.
  • The 4-team league with 184 offensive starters also has 7 scoring stats maxed at 99,999 — solo tackles, total tackles, sacks, interceptions, forced fumbles, pass deflections, and QB hits.

Most Popular IDP Roster Configs

Top configurations by frequency

DB:2 DL:2 IDP_FLEX:2 LB:2
433 (10.8%)
DB:1 DL:1 IDP_FLEX:1 LB:1
256 (6.4%)
DB:2 DL:2 IDP_FLEX:1 LB:2
256 (6.4%)
DB:3 DL:3 IDP_FLEX:2 LB:3
238 (5.9%)
DB:3 DL:3 IDP_FLEX:3 LB:3
221 (5.5%)
IDP_FLEX:1
194 (4.8%)
IDP_FLEX:6
176 (4.4%)
DB:2 DL:2 IDP_FLEX:3 LB:2
162 (4%)
IDP_FLEX:2
153 (3.8%)
DB:1 DL:1 IDP_FLEX:2 LB:1
151 (3.8%)
IDP_FLEX:5
135 (3.4%)
IDP_FLEX:3
126 (3.1%)
DB:1 DL:1 LB:1
113 (2.8%)
DB:2 DL:2 LB:2
89 (2.2%)
IDP_FLEX:4
82 (2%)

Wild outliers from the dataset

  • One 16-team league has 307 bench slots per team. That's 4,912 rostered players across the league — roughly the entire NFL and half of the CFL.

Cross-tabulations

By League Size

4-team

avg 10.6 IDP · med 8

93 leagues

6-team

avg 8.3 IDP · med 7

86 leagues

8-team

avg 9 IDP · med 8

287 leagues

9-team

avg 2 IDP · med 2

2 leagues

10-team

avg 6.2 IDP · med 6

745 leagues

12-team

avg 7.7 IDP · med 8

1531 leagues

13-team

avg 7 IDP · med 7

1 leagues

14-team

avg 8 IDP · med 9

225 leagues

16-team

avg 8.2 IDP · med 8

367 leagues

17-team

avg 4.8 IDP · med 5

4 leagues

18-team

avg 5.8 IDP · med 5

52 leagues

19-team

avg 3 IDP · med 3

2 leagues

20-team

avg 6.7 IDP · med 7

47 leagues

22-team

avg 7.7 IDP · med 6.5

6 leagues

24-team

avg 6 IDP · med 6

51 leagues

32-team

avg 7.2 IDP · med 7

507 leagues

Dynasty IDP

Leagues
3308
Avg IDP starters
7.8
Have IDP_FLEX
91.6%

Redraft IDP

Leagues
698
Avg IDP starters
6
Have IDP_FLEX
87.5%

SuperFlex Correlation

SF leagues
2838 (avg 7.5 IDP)
Non-SF leagues
1168 (avg 7.6 IDP)

TEP Correlation

TEP leagues
2448 (avg 8 IDP)
Non-TEP leagues
1558 (avg 6.7 IDP)

Data collected via BFS crawl of the Sleeper public API. Only league configuration data is collected — no personal information, rosters, or player data. Last updated 2026-11-01.