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GH_rank_ndcg trained

GH_rank_ndcg_1783184504000 · GH · rank:ndcg · 2026-04-01 → 2026-06-30

0.7194
NDCG@1
0.7194
Top-1 hit
1.3913
Race NLL
2559
Races
20363
Rows
102
Features

Feature importance (gain)

Mean split gain per feature from the persisted booster (top 15). ELO-family features are expected to dominate the greyhound ranker.

Feature columns

age_days age_months best_time_track_distance_pit box_avg_z_split_trk_dist box_break_x_curvature career_start_count career_win_rate_pit career_wins curvature_x_box dam_elo dam_progeny_count dam_progeny_win_rate days_since_last_start days_since_prev distance_change_m dog_box_break_score_w90 dog_days_since_last_win dog_early_speed_rank_est dog_early_speed_score_ema dog_elo_avg_mov_surprise dog_elo_mov_delta dog_elo_percentile_in_field dog_elo_rating dog_late_strength_rank_est dog_late_strength_score_ema dog_pace_balance_ema dog_pace_type dog_run_home_rating_ema dog_second_split_mean_ema dog_top3_rate_30d dog_win_rate_30d early_speed_rank_x_box elo_diff_vs_rival_med elo_maturity elo_vs_field_avg field_diff_best_time_track_distance_pit field_diff_career_win_rate_pit field_diff_parent_avg_elo field_diff_parent_avg_win_rate field_diff_place_inv_mean_365d field_diff_pop_box_win_rate_track_dist field_diff_prize_money_career_sum field_diff_trainer_elo_rating field_diff_trainer_win_rate field_rank_best_time_track_distance_pit field_ratio_best_time_track_distance_pit field_ratio_career_win_rate_pit field_ratio_parent_avg_elo field_ratio_parent_avg_win_rate field_ratio_place_inv_mean_365d field_ratio_pop_box_win_rate_track_dist field_ratio_prize_money_career_sum field_ratio_trainer_elo_rating field_ratio_trainer_win_rate field_size grade_best_ever grade_ordinal parent_avg_elo parent_avg_win_rate place_inv_mean_365d place_inv_mean_91d place_log_mean_365d pop_box_win_rate_track_dist prize_money_career_sum race_field_elo_mean race_field_elo_std rival_elo_mean rival_elo_median sire_elo sire_progeny_count sire_progeny_win_rate sr_behavioral_count_365d sr_days_since_injury sr_days_since_interference sr_injury_body_part_last sr_injury_count_365d sr_injury_severity_max_365d sr_injury_severity_text_max_365d sr_injury_type_last sr_interference_count_30d sr_interference_count_365d sr_interference_count_90d sr_interference_rate_365d sr_interference_severity_weighted_365d sr_last_standdown_days sr_max_standdown_365d sr_standdown_normalised_last sr_total_standdown_days_365d track_circumference_m track_curvature track_lure_enc track_num_turns track_surface_enc trainer_elo_maturity trainer_elo_rating trainer_runner_count trainer_strike_rate trainer_top3_rate trainer_track_rate trainer_win_rate weight_delta_3 weight_last

Hyperparameters

colsample_bytree
0.7
eta
0.05
gamma
0.0
lambdarank_num_pair_per_sample
8
lambdarank_pair_method
"topk"
max_depth
6
min_child_weight
1
ndcg_exp_gain
false
num_boost_rounds
200
objective
"rank_ndcg"
reg_alpha
1.0
reg_lambda
5.0
seed
42
subsample
0.8
tree_method
"hist"

Predictions (0 runners across 0 prediction runs)

No predictions produced by this model yet.
0 rows
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