He is also the Israeli Premier League's all-time leading scorer, having scored a total of 9,611 points, in 466 games played.

He also holds the all-time career record for the most 3-point field goals made in the Israeli Premier League, with 815.

He is all the all-time leading scorer in the club history of Ironi Ramat Gan, with a total of 3,638 points scored, in 156 games played.

On an individual level, Jamchi was a four-time member of the FIBA European Selection Team, in the years 1987, 1990, 1991, and 1995.

Jamchi is the all-time leading scorer in the history of the senior Israeli national team, with 3,514 total points scored.