leaderboard: The type of leaderboard to retrieve, input as a string. Current options include exit_velocity_barrels, expected_statistics, pitch_arsenal, outs_above_average, directional_oaa, catch_probability, pop_time, sprint_speed, and running_splits_90_ft, arm_strength.
year: The season for which you want data.
abs: The minimum number of batted balls. Applies only to exit_velocity_barrels leaderboards.
min_pa: Minimum number of plate appearances. Can be a number or 'q' for qualified batters.
min_pitches: Minimum number of pitches thrown.
min_throws: Minimum number of throwing opportunities.
min_field: Minimum number of fieding opportunities.
min_run: Minimum number of running opportunities.
player_type: One of either 'batter' or pitcher. For the expected_statistics leaderboard, 'batter-team' and 'pitcher-team' are also available.
fielding_type: One of either 'player' or 'team'.
oaa_position: Can be either the number position of a player or 'if' or 'of' for position categories.
oaa_roles: Can be either the number position of a player or 'if' or 'of' for position categories.
team: An abbreviation for a team. Can be left blank.
arsenal_type: One of either 'n_', 'avg_spin', or 'avg_speed'.
run_type: One of either 'percent' or 'raw'.
min2b: The minimum number of throwing attempts to second base.
min3b: The minimum number of throwing attempts to third base.
position: The numeric position of the player. For DH use 10. Can be left blank.
bats: The handedness of the batter. One of 'R' or 'L'. Can be left blank.
hand: The handedness of the pitcher. One of 'R' or 'L'. Can be left blank.