by a long shot

by a long shot  {adv. phr.},  {informal}

С большим отрывом; намного. — Исп. с эмфазой.

Bert was the best swimmer in the race, by a long shot.

Часто исп. с отрицанием.

Tom isn't the kind who would be fresh to a teacher, by a long shot.

Our team didn't win — not by a long shot.

Ср.: MISS BY A MILE.