<invoke name="query_sql"> <parameter name="sql">SELECT Surface, row_count, Aces__avg, DFs__avg, Aces__avg / DFs__avg AS aces_per_df, Rk__median, TP__avg FROM raw_kaggle_by_Surface WHERE Surface <> '' ORDER BY aces_per_df DESC</parameter> <parameter name="purpose">Render aces vs double faults per match by surface to show the contrast</parameter> <parameter name="source">gold</parameter> </invoke> ```