during its first ever season, landskrona bois managed to profile themselves in superettan, and defeated malmö ff away, but the club had to wait one season longer for promotion. they eventually become successful in the 2001 superettan, securing promotion to allsvenskan after winning against assyriska in the final game. in the premiere in allsvenskan 2002, landskrona bois defeated local rivals helsingborgs if with 6–2 at home, after a hattrick scored by striker danijel milovanović. during the first half of the season, bois was in top of the league, and even leading the table. they finished on 11th place in 2002, 2003 and 2004, but were relegated after finishing on 12th place in 2005 and losing the qualification game against gais. notable players during the latest period in the highest division were amongst others danijel milovanovic, hasan cetinkaya, daniel nannskog, håkan söderstjerna, alexander farnerud, and jonas olsson.