Winner Carreras Americanas Work -

# Average speed figure last 3 races race_history_df['avg_speed_last3'] = ( race_history_df.groupby('horse_id')['speed_figure'] .transform(lambda x: x.rolling(3, min_periods=1).mean()) )

# Days since last race race_history_df['days_since_last'] = ( race_history_df.groupby('horse_id')['race_date'].diff().dt.days ) winner carreras americanas

# Sort by horse and date race_history_df = race_history_df.sort_values(['horse_id', 'race_date']) winner carreras americanas