| 198* | GA Gooch | Essex v Sussex | 1982 | a3311 |
| 189* | TP Alsop | Sussex v Middlesex | 2022 | a29417 |
| 177 | SJ Cook | Somerset v Sussex | 1990 | a6547 |
| 174 | CA Pujara | Sussex v Surrey | 2022 | a29377 |
| 169* | JA Rudolph | Glamorgan v Sussex | 2014 | a23502 |
| 157* | Inzamam-ul-Haq | Pakistanis v Sussex | 1992 | a7562 |