The name Hector comes from the Latin form of Greek ‘Εκτωρ (Hektor), meaning "holding fast". In Greek legend, Hector was a Trojan champion (Behind the Name).
Lamont is a medieval surname of Scottish origin, derived from the pre-Seventh Century Old Norse name Logmathr (from log meaning "law" and mathr (mann) meaning "man") (Internet Surname Database).
In 1994, Scotland's National Team lost to Luxembourg in the run up to that year's Quidditch World Cup. It is not known whether Lamont was given a second chance to make up for their loss in the 1990 final (GF5).
Lexicon list of Seekers
From the Web
Writing by J.K. Rowling on Pottermore: History of the Quidditch World Cup
Harry Potter Wiki: Hector Lamont