Compute NFL Playoff Seedings using Game Results and Divisional Rankings

compute_conference_seeds(
  teams,
  h2h = NULL,
  tiebreaker_depth = 3,
  .debug = FALSE,
  playoff_seeds = 7
)

Arguments

teams

The division standings data frame as computed by compute_division_ranks

h2h

A data frame that is used for head-to-head tiebreakers across the tie-breaking functions. It is computed by the function compute_division_ranks.

tiebreaker_depth

A single value equal to 1, 2, or 3. The default is 3. The value controls the depth of tiebreakers that shall be applied. The deepest currently implemented tiebreaker is strength of schedule. The following values are valid:

tiebreaker_depth = 1

Break all ties with a coinflip. Fastest variant.

tiebreaker_depth = 2

Apply head-to-head and division win percentage tiebreakers. Random if still tied.

tiebreaker_depth = 3

Apply all tiebreakers through strength of schedule. Random if still tied.

.debug

Either TRUE or FALSE. Controls whether additional messages are printed to the console showing what the tie-breaking algorithms are currently performing.

playoff_seeds

Number of playoff teams per conference (increased in 2020 from 6 to 7).

Value

A data frame of division standings including playoff seeds and the week in which the season ended for the respective team (exit).

A list of two data frames:

standings

Division standings including playoff seeds.

h2h

A data frame that is used for head-to-head tiebreakers across the tie-breaking functions.

See also

Examples

# \donttest{
# Change some options for better output
old <- options(list(digits = 3, tibble.print_min = 64))
library(dplyr, warn.conflicts = FALSE)

nflseedR::load_sharpe_games() %>%
  dplyr::filter(season %in% 2019:2020) %>%
  dplyr::select(sim = season, game_type, week, away_team, home_team, result) %>%
  nflseedR::compute_division_ranks() %>%
  nflseedR::compute_conference_seeds(h2h = .$h2h) %>%
  purrr::pluck("standings")
#>  2021-10-31 13:37:06: Calculating team data
#>  2021-10-31 13:37:07: Calculating head to head
#>  2021-10-31 13:37:07: Calculating division rank #1
#>  2021-10-31 13:37:07: Calculating division rank #2
#>  2021-10-31 13:37:07: Calculating division rank #3
#>  2021-10-31 13:37:07: Calculating division rank #4
#>  2021-10-31 13:37:07: Calculating seed #1
#>  2021-10-31 13:37:07: Calculating seed #2
#>  2021-10-31 13:37:07: Calculating seed #3
#>  2021-10-31 13:37:07: Calculating seed #4
#>  2021-10-31 13:37:07: Calculating seed #5
#>  2021-10-31 13:37:08: Calculating seed #6
#>  2021-10-31 13:37:08: Calculating seed #7
#> # A tibble: 64 × 15
#>      sim conf  division  team  games  wins true_wins win_pct div_pct conf_pct
#>    <int> <chr> <chr>     <chr> <int> <dbl>     <int>   <dbl>   <dbl>    <dbl>
#>  1  2019 AFC   AFC East  BUF      16  10          10  0.625    0.5     0.583 
#>  2  2019 AFC   AFC East  MIA      16   5           5  0.312    0.333   0.333 
#>  3  2019 AFC   AFC East  NE       16  12          12  0.75     0.833   0.667 
#>  4  2019 AFC   AFC East  NYJ      16   7           7  0.438    0.333   0.333 
#>  5  2019 AFC   AFC North BAL      16  14          14  0.875    0.833   0.833 
#>  6  2019 AFC   AFC North CIN      16   2           2  0.125    0.167   0.167 
#>  7  2019 AFC   AFC North CLE      16   6           6  0.375    0.5     0.5   
#>  8  2019 AFC   AFC North PIT      16   8           8  0.5      0.5     0.5   
#>  9  2019 AFC   AFC South HOU      16  10          10  0.625    0.667   0.667 
#> 10  2019 AFC   AFC South IND      16   7           7  0.438    0.5     0.417 
#> 11  2019 AFC   AFC South JAX      16   6           6  0.375    0.333   0.5   
#> 12  2019 AFC   AFC South TEN      16   9           9  0.562    0.5     0.583 
#> 13  2019 AFC   AFC West  DEN      16   7           7  0.438    0.5     0.5   
#> 14  2019 AFC   AFC West  KC       16  12          12  0.75     1       0.75  
#> 15  2019 AFC   AFC West  LAC      16   5           5  0.312    0       0.25  
#> 16  2019 AFC   AFC West  OAK      16   7           7  0.438    0.5     0.417 
#> 17  2019 NFC   NFC East  DAL      16   8           8  0.5      0.833   0.583 
#> 18  2019 NFC   NFC East  NYG      16   4           4  0.25     0.333   0.25  
#> 19  2019 NFC   NFC East  PHI      16   9           9  0.562    0.833   0.583 
#> 20  2019 NFC   NFC East  WAS      16   3           3  0.188    0       0.167 
#> 21  2019 NFC   NFC North CHI      16   8           8  0.5      0.667   0.583 
#> 22  2019 NFC   NFC North DET      16   3.5         3  0.219    0       0.208 
#> 23  2019 NFC   NFC North GB       16  13          13  0.812    1       0.833 
#> 24  2019 NFC   NFC North MIN      16  10          10  0.625    0.333   0.583 
#> 25  2019 NFC   NFC South ATL      16   7           7  0.438    0.667   0.5   
#> 26  2019 NFC   NFC South CAR      16   5           5  0.312    0.167   0.167 
#> 27  2019 NFC   NFC South NO       16  13          13  0.812    0.833   0.75  
#> 28  2019 NFC   NFC South TB       16   7           7  0.438    0.333   0.417 
#> 29  2019 NFC   NFC West  ARI      16   5.5         5  0.344    0.167   0.292 
#> 30  2019 NFC   NFC West  LA       16   9           9  0.562    0.5     0.583 
#> 31  2019 NFC   NFC West  SEA      16  11          11  0.688    0.5     0.667 
#> 32  2019 NFC   NFC West  SF       16  13          13  0.812    0.833   0.833 
#> 33  2020 AFC   AFC East  BUF      16  13          13  0.812    1       0.833 
#> 34  2020 AFC   AFC East  MIA      16  10          10  0.625    0.5     0.583 
#> 35  2020 AFC   AFC East  NE       16   7           7  0.438    0.5     0.5   
#> 36  2020 AFC   AFC East  NYJ      16   2           2  0.125    0       0.0833
#> 37  2020 AFC   AFC North BAL      16  11          11  0.688    0.667   0.583 
#> 38  2020 AFC   AFC North CIN      16   4.5         4  0.281    0.167   0.333 
#> 39  2020 AFC   AFC North CLE      16  11          11  0.688    0.5     0.583 
#> 40  2020 AFC   AFC North PIT      16  12          12  0.75     0.667   0.75  
#> 41  2020 AFC   AFC South HOU      16   4           4  0.25     0.333   0.25  
#> 42  2020 AFC   AFC South IND      16  11          11  0.688    0.667   0.583 
#> 43  2020 AFC   AFC South JAX      16   1           1  0.0625   0.167   0.0833
#> 44  2020 AFC   AFC South TEN      16  11          11  0.688    0.833   0.667 
#> 45  2020 AFC   AFC West  DEN      16   5           5  0.312    0.167   0.333 
#> 46  2020 AFC   AFC West  KC       16  14          14  0.875    0.667   0.833 
#> 47  2020 AFC   AFC West  LAC      16   7           7  0.438    0.5     0.5   
#> 48  2020 AFC   AFC West  LV       16   8           8  0.5      0.667   0.5   
#> 49  2020 NFC   NFC East  DAL      16   6           6  0.375    0.333   0.417 
#> 50  2020 NFC   NFC East  NYG      16   6           6  0.375    0.667   0.417 
#> 51  2020 NFC   NFC East  PHI      16   4.5         4  0.281    0.333   0.333 
#> 52  2020 NFC   NFC East  WAS      16   7           7  0.438    0.667   0.417 
#> 53  2020 NFC   NFC North CHI      16   8           8  0.5      0.333   0.5   
#> 54  2020 NFC   NFC North DET      16   5           5  0.312    0.167   0.333 
#> 55  2020 NFC   NFC North GB       16  13          13  0.812    0.833   0.833 
#> 56  2020 NFC   NFC North MIN      16   7           7  0.438    0.667   0.417 
#> 57  2020 NFC   NFC South ATL      16   4           4  0.25     0.167   0.167 
#> 58  2020 NFC   NFC South CAR      16   5           5  0.312    0.167   0.333 
#> 59  2020 NFC   NFC South NO       16  12          12  0.75     1       0.833 
#> 60  2020 NFC   NFC South TB       16  11          11  0.688    0.667   0.667 
#> 61  2020 NFC   NFC West  ARI      16   8           8  0.5      0.333   0.5   
#> 62  2020 NFC   NFC West  LA       16  10          10  0.625    0.5     0.75  
#> 63  2020 NFC   NFC West  SEA      16  12          12  0.75     0.667   0.75  
#> 64  2020 NFC   NFC West  SF       16   6           6  0.375    0.5     0.333 
#> # … with 5 more variables: sov <dbl>, sos <dbl>, div_rank <dbl>, seed <dbl>,
#> #   exit <dbl>

# Restore old options
options(old)
# }