Jayaprakash played 79 first-class matches, starting with 3 matches for Mysore in the 1971/72 and 1972/73 Ranji Trophy, and continuing when the team was renamed Karnataka until 1984/85.
An all-rounder, he scored 3,727 runs in 125 innings, at an average of 35.49, including 6 centuries and 21 half-centuries.
He also played in 15 List A one-day matches, including for the South Zone team that won the Deodhar Trophy in 1974/75, and losing finals sides in 1976/77 and 1978/79, and in the Karnataka team that lost the final of the Wills Trophy in 1983/84.
Jayaprakash became an umpire after retiring from first-class cricket.
[3] In his second Test, the 2nd Test between India and Pakistan in Delhi in 1999, he stood at the bowler's end while Anil Kumble dismissed all 10 batsmen in Pakistan's 2nd innings.