fflr 
The fflr package is used to query the ESPN Fantasy Football API. Get data on fantasy football league members, teams, and individual athletes.
This package has been tested with a narrow subset of possible league settings. If a function doesn’t work as intended, please file an issue on GitHub.
Installation
You can install the release version of fflr from CRAN:
install.packages("fflr")The most recent development version can be installed from GitHub:
# install.packages("remotes")
remotes::install_github("kiernann/fflr")Usage
library(fflr)
packageVersion("fflr")
#> [1] '2.1.0'Data is only available for public leagues. See this help page on how to make a private league public
Functions require a unique leagueId, which can be found in any ESPN
page URL.
https://fantasy.espn.com/football/league?leagueId=42654852
Use ffl_id() to set a default fflr.leagueId option. Your .Rprofile
file can set this option on
startup.
ffl_id(leagueId = "42654852")
#> Temporarily set `fflr.leagueId` option to 42654852
#> [1] "42654852"The leagueId argument defaults to ffl_id() and can be omitted once
set.
league_info()
#> # A tibble: 1 × 6
#> id seasonId name isPublic size finalScoringPeriod
#> <int> <int> <chr> <lgl> <int> <int>
#> 1 42654852 2022 FFLR Test League TRUE 4 17
league_teams()
#> # A tibble: 4 × 5
#> abbrev teamId location nickname memberId
#> <fct> <int> <chr> <chr> <chr>
#> 1 AUS 1 Austin Astronauts {22DFE7FF-9DF2-4F3B-9FE7-FF9DF2AF3BD2}
#> 2 BOS 2 Boston Buzzards {22DFE7FF-9DF2-4F3B-9FE7-FF9DF2AF3BD2}
#> 3 CHI 3 Chicago Crowns {22DFE7FF-9DF2-4F3B-9FE7-FF9DF2AF3BD2}
#> 4 DEN 4 Denver Devils {22DFE7FF-9DF2-4F3B-9FE7-FF9DF2AF3BD2}The scoringPeriodId argument can be used to get data from past weeks.
all_rost <- team_roster(scoringPeriodId = 1)
all_rost$CHI[, 5:13][-7]
#> # A tibble: 16 × 8
#> lineupSlot playerId firstName lastName proTeam position projectedScore actualScore
#> <fct> <int> <chr> <chr> <fct> <fct> <dbl> <dbl>
#> 1 QB 4038941 Justin Herbert LAC QB 20.8 23.3
#> 2 RB 4242335 Jonathan Taylor Ind RB 21.8 27.5
#> 3 RB 3116593 Dalvin Cook Min RB 16.8 13.8
#> 4 WR 4262921 Justin Jefferson Min WR 17.9 39.4
#> 5 WR 4241389 CeeDee Lamb Dal WR 17.0 4.9
#> 6 TE 4360248 Kyle Pitts Atl TE 11.9 3.9
#> 7 FLEX 3116406 Tyreek Hill Mia WR 15.9 18
#> 8 D/ST -16002 Bills D/ST Buf D/ST 5.10 18
#> 9 K 3055899 Harrison Butker KC K 8.28 9
#> 10 BE 3042519 Aaron Jones GB RB 15.7 10.6
#> 11 BE 4239993 Tee Higgins Cin WR 14.6 4.7
#> 12 BE 3121422 Terry McLaurin Wsh WR 14.2 13.8
#> 13 BE 4035538 David Montgomery Chi RB 14.5 8
#> 14 BE 3051392 Ezekiel Elliott Dal RB 13.3 5.9
#> 15 BE 3128429 Courtland Sutton Den WR 12.8 0
#> 16 BE 4243537 Gabe Davis Buf WR 12.3 18.8There are included objects for NFL teams and players.
nfl_teams
#> # A tibble: 33 × 6
#> proTeamId abbrev location name byeWeek conference
#> <int> <fct> <chr> <chr> <int> <chr>
#> 1 0 FA <NA> FA 0 <NA>
#> 2 1 Atl Atlanta Falcons 14 NFC
#> 3 2 Buf Buffalo Bills 7 AFC
#> 4 3 Chi Chicago Bears 14 NFC
#> 5 4 Cin Cincinnati Bengals 10 AFC
#> 6 5 Cle Cleveland Browns 9 AFC
#> 7 6 Dal Dallas Cowboys 9 NFC
#> 8 7 Den Denver Broncos 9 AFC
#> 9 8 Det Detroit Lions 6 NFC
#> 10 9 GB Green Bay Packers 14 NFC
#> # … with 23 more rowsThe fflr project is released with a Contributor Code of Conduct. By contributing, you agree to abide by its terms.