14‑Aug‑1989 | Cincinnati | Hard | R16 | 66 | 3 | (2)Stefan Edberg [SWE] d. Krishnan | 6-4 3-6 6-4 | | | | | | | | | |
14‑Aug‑1989 | Cincinnati | Hard | R32 | 66 | 112 | Krishnan d. Javier Frana [ARG] | 4-6 7-6 4-2 RET | | | | | | | | | |
14‑Aug‑1989 | Cincinnati | Hard | R64 | 66 | 235 | Krishnan d. (WC)Bill Scanlon [USA] | 1-6 6-3 7-6 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | R32 | 41 | 29 | (13)Jakob Hlasek [SUI] d. Krishnan | 3-6 6-2 6-3 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | R64 | 41 | 81 | Krishnan d. Javier Frana [ARG] | 6-3 6-4 | | | | | | | | | |
17‑Aug‑1987 | Cincinnati | Hard | R32 | 48 | 37 | (16)Tarik Benhabiles [FRA] d. Krishnan | 7-6 7-6 | | | | | | | | | |
17‑Aug‑1987 | Cincinnati | Hard | R64 | 48 | 162 | Krishnan d. Christo Steyn [RSA] | 6-0 6-4 | | | | | | | | | |
18‑Aug‑1986 | Cincinnati | Hard | R64 | 41 | 40 | Jonathan Canter [USA] d. (16)Krishnan | 7-5 6-4 | | | | | | | | | |
19‑Aug‑1985 | Cincinnati | Hard | R64 | 25 | 60 | Bud Schultz [USA] d. (16)Krishnan | 6-3 6-1 | | | | | | | | | |
20‑Aug‑1984 | Cincinnati | Hard | R16 | 46 | 32 | (12)Paul Mcnamee [AUS] d. Krishnan | 7-6 6-7 7-6 | | | | | | | | | |
20‑Aug‑1984 | Cincinnati | Hard | R32 | 46 | 70 | Krishnan d. Vijay Amritraj [IND] | 6-2 4-6 6-2 | | | | | | | | | |
20‑Aug‑1984 | Cincinnati | Hard | R64 | 46 | 91 | Krishnan d. Hank Pfister [USA] | 6-3 6-2 | | | | | | | | | |
15‑Aug‑1983 | Cincinnati | Hard | R64 | | 17 | (11)Bill Scanlon [USA] d. Krishnan | 6-4 6-2 | | | | | | | | | |
16‑Aug‑1982 | Cincinnati | Hard | R32 | 55 | 4 | (3)Ivan Lendl [USA] d. Krishnan | 6-4 6-2 | | | | | | | | | |
16‑Aug‑1982 | Cincinnati | Hard | R64 | 55 | 88 | Krishnan d. Stefan Simonsson [SWE] | 6-4 6-2 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R32 | | 35 | (WC)Bill Scanlon [USA] d. Krishnan | 6-3 6-3 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R64 | | 88 | Krishnan d. Per Hjertquist [SWE] | 6-3 6-3 | | | | | | | | | |