Scrape historical FanGraphs Guts! table, wOBA, FIP coefficients and constants
Value
Returns a tibble of seasonal constants from FanGraphs
| col_name | types | description |
| season | integer | Season (YYYY). |
| lg_woba | numeric | League-average wOBA for the season. |
| woba_scale | numeric | wOBA scale factor (converts wOBA to runs). |
| wBB | numeric | Linear weight (runs) for an unintentional walk. |
| wHBP | numeric | Linear weight (runs) for a hit-by-pitch. |
| w1B | numeric | Linear weight (runs) for a single. |
| w2B | numeric | Linear weight (runs) for a double. |
| w3B | numeric | Linear weight (runs) for a triple. |
| wHR | numeric | Linear weight (runs) for a home run. |
| runSB | numeric | Run value of a stolen base. |
| runCS | numeric | Run value of a caught stealing. |
| lg_r_pa | numeric | League runs per plate appearance. |
| lg_r_w | numeric | League runs per win. |
| cFIP | numeric | FIP constant for the season. |
Examples
# \donttest{
try(fg_guts())
#> ── GUTS data from FanGraphs.com ───────────────────── baseballr 2.0.0 ──
#> ℹ Data updated: 2026-06-08 11:08:17 UTC
#> # A tibble: 156 × 14
#> season lg_woba woba_scale wBB wHBP w1B w2B w3B wHR runSB
#> <int> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
#> 1 2026 0.316 1.25 0.701 0.733 0.896 1.27 1.61 2.07 0.2
#> 2 2025 0.313 1.23 0.691 0.722 0.882 1.25 1.58 2.04 0.2
#> 3 2024 0.31 1.24 0.689 0.72 0.882 1.25 1.59 2.05 0.2
#> 4 2023 0.318 1.20 0.696 0.726 0.883 1.24 1.57 2.00 0.2
#> 5 2022 0.31 1.26 0.689 0.72 0.884 1.26 1.60 2.07 0.2
#> 6 2021 0.314 1.21 0.692 0.722 0.879 1.24 1.57 2.01 0.2
#> 7 2020 0.32 1.18 0.699 0.728 0.883 1.24 1.56 1.98 0.2
#> 8 2019 0.32 1.16 0.69 0.719 0.87 1.22 1.53 1.94 0.2
#> 9 2018 0.315 1.23 0.69 0.72 0.88 1.25 1.58 2.03 0.2
#> 10 2017 0.321 1.18 0.693 0.723 0.877 1.23 1.55 1.98 0.2
#> # ℹ 146 more rows
#> # ℹ 4 more variables: runCS <dbl>, lg_r_pa <dbl>, lg_r_w <dbl>,
#> # cFIP <dbl>
# }