12‑Dec‑1983 | Sydney Outdoor | Grass | R64 | 80 | 35 | (11)Tim Gullikson [USA] d. Krishnan | 6-3 6-7 6-4 | | | | | | | | | |
29‑Nov‑1983 | Australian Open | Grass | R32 | 79 | 2 | (2)John Mcenroe [USA] d. Krishnan | 6-4 7-5 6-1 | | | | | | | | | |
29‑Nov‑1983 | Australian Open | Grass | R64 | 79 | | Krishnan d. Drew Gitlin [USA] | 6-2 6-7 6-4 3-6 6-1 | | | | | | | | | |
7‑Nov‑1983 | Taipei | Carpet | QF | 88 | 54 | (5)Brad Gilbert [USA] d. Krishnan | 6-3 6-3 | | | | | | | | | |
7‑Nov‑1983 | Taipei | Carpet | R16 | 88 | | Krishnan d. (Q)Matt Anger [USA] | 6-2 6-0 | | | | | | | | | |
7‑Nov‑1983 | Taipei | Carpet | R32 | 88 | | Krishnan d. Marcel Freeman [USA] | 4-6 6-1 6-3 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R16 | 86 | 84 | Nduka Odizor [NGR] d. Krishnan | 3-6 6-3 7-5 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R32 | 86 | 88 | Krishnan d. Steve Meister [USA] | 6-3 6-4 | | | | | | | | | |
17‑Oct‑1983 | Tokyo Outdoor | Hard | QF | 99 | 13 | (1)Andres Gomez [ECU] d. Krishnan | 6-2 7-5 | | | | | | | | | |
17‑Oct‑1983 | Tokyo Outdoor | Hard | R16 | 99 | 100 | Krishnan d. Steve Meister [USA] | 6-3 6-2 | | | | | | | | | |
17‑Oct‑1983 | Tokyo Outdoor | Hard | R32 | 99 | 47 | Krishnan d. (6)Thomas Hogstedt [SWE] | 3-6 6-3 6-1 | | | | | | | | | |
17‑Oct‑1983 | Tokyo Outdoor | Hard | R64 | 99 | | Krishnan d. Hitoshi Shirato [JPN] | 6-0 6-2 | | | | | | | | | |
30‑Sep‑1983 | Davis Cup EUR F: JPN vs IND | Hard | RR | 97 | | Krishnan d. Tsuyoshi Fukui [JPN] | 6-4 6-1 3-6 4-6 6-0 | | | | | | | | | |
30‑Sep‑1983 | Davis Cup EUR F: JPN vs IND | Hard | RR | 97 | | Hitoshi Shirato [JPN] d. Krishnan | 2-6 6-4 7-5 | | | | | | | | | |
19‑Sep‑1983 | San Francisco | Carpet | SF | | 2 | (2)Ivan Lendl [USA] d. (Q)Krishnan | 6-0 6-1 | | | | | | | | | |
19‑Sep‑1983 | San Francisco | Carpet | QF | | 12 | (Q)Krishnan d. (6)Bill Scanlon [USA] | 6-3 7-6 | | | | | | | | | |
19‑Sep‑1983 | San Francisco | Carpet | R16 | | | (Q)Krishnan d. Bernard Mitton [RSA] | 6-2 6-3 | | | | | | | | | |
19‑Sep‑1983 | San Francisco | Carpet | R32 | | 83 | (Q)Krishnan d. Jay Lapidus [USA] | 6-3 6-3 | | | | | | | | | |
12‑Sep‑1983 | Dallas | Hard | R32 | | 37 | (8)John Fitzgerald [AUS] d. (Q)Krishnan | 6-4 3-6 6-4 | | | | | | | | | |
30‑Aug‑1983 | US Open | Hard | R128 | | 3 | (3)Jimmy Connors [USA] d. Krishnan | 6-2 6-4 3-6 6-2 | | | | | | | | | |
15‑Aug‑1983 | Cincinnati | Hard | R64 | | 17 | (11)Bill Scanlon [USA] d. Krishnan | 6-4 6-2 | | | | | | | | | |
8‑Aug‑1983 | Montreal / Toronto | Hard | R32 | | | (Q)Georges Goven [FRA] d. Krishnan | 6-4 6-1 | | | | | | | | | |
8‑Aug‑1983 | Montreal / Toronto | Hard | R64 | | 20 | Krishnan d. (12)Henri Leconte [FRA] | 4-6 6-2 6-2 | | | | | | | | | |
1‑Aug‑1983 | Indianapolis | Clay | R64 | | 40 | (12)Corrado Barazzutti [ITA] d. Krishnan | 6-4 6-4 | | | | | | | | | |
25‑Jul‑1983 | South Orange | Clay | R32 | | 37 | Mario Martinez [BOL] d. Krishnan | 6-3 7-6 | | | | | | | | | |
18‑Jul‑1983 | Washington | Clay | R32 | | 61 | (15)Mario Martinez [BOL] d. Krishnan | 6-7 6-2 6-1 | | | | | | | | | |
18‑Jul‑1983 | Washington | Clay | R64 | | | Krishnan d. Eddie Edwards [RSA] | 1-6 7-6 6-1 | | | | | | | | | |
11‑Jul‑1983 | Boston | Clay | R64 | 73 | | Gilles Moretton [FRA] d. (16)Krishnan | 6-4 1-6 6-3 | | | | | | | | | |
20‑Jun‑1983 | Wimbledon | Grass | R128 | 67 | 10 | (8)Vitas Gerulaitis [USA] d. Krishnan | 5-7 7-5 7-6 5-7 6-3 | | | | | | | | | |
13‑Jun‑1983 | Bristol | Grass | SF | 100 | 61 | Tom Gullikson [USA] d. Krishnan | 6-4 7-6 | | | | | | | | | |
13‑Jun‑1983 | Bristol | Grass | QF | 100 | 78 | Krishnan d. John Fitzgerald [AUS] | 6-3 6-3 | | | | | | | | | |
13‑Jun‑1983 | Bristol | Grass | R16 | 100 | 67 | Krishnan d. Rodney Harmon [USA] | 7-5 6-0 | | | | | | | | | |
13‑Jun‑1983 | Bristol | Grass | R32 | 100 | 24 | Krishnan d. (4)Mark Edmondson [AUS] | 6-4 6-3 | | | | | | | | | |
6‑Jun‑1983 | Queen's Club | Grass | R64 | 81 | 9 | (4)Vitas Gerulaitis [USA] d. Krishnan | 7-5 6-7 7-5 | | | | | | | | | |
23‑May‑1983 | Roland Garros | Clay | R128 | 74 | | Tarik Benhabiles [FRA] d. Krishnan | 6-4 7-5 6-3 | | | | | | | | | |
1‑May‑1983 | Forest Hills WCT | Clay | R64 | 76 | | Larry Stefanki [USA] d. Krishnan | 6-7 6-0 6-4 | | | | | | | | | |
4‑Apr‑1983 | Houston-WCT | Clay | R16 | 88 | 1 | (1)Ivan Lendl [USA] d. Krishnan | 6-0 6-2 | | | | | | | | | |
4‑Apr‑1983 | Houston-WCT | Clay | R32 | 88 | | Krishnan d. Van Winitsky [USA] | 6-1 6-4 | | | | | | | | | |
21‑Mar‑1983 | Nice | Clay | R32 | 80 | 44 | (7)Manuel Orantes [ESP] d. Krishnan | 6-3 6-3 | | | | | | | | | |
14‑Mar‑1983 | Munich WCT | Carpet | QF | 78 | 19 | (5)Wojtek Fibak [POL] d. (Q)Krishnan | 6-4 3-6 6-2 | | | | | | | | | |
14‑Mar‑1983 | Munich WCT | Carpet | R16 | 78 | | (Q)Krishnan d. (LL)Freddie Sauer [RSA] | 7-6 4-6 7-5 | | | | | | | | | |
14‑Mar‑1983 | Munich WCT | Carpet | R32 | 78 | 87 | (Q)Krishnan d. Tom Cain [USA] | 6-4 6-2 | | | | | | | | | |
21‑Feb‑1983 | Delray Beach WCT | Clay | R32 | 75 | 19 | Jimmy Arias [USA] d. (Q)Krishnan | 0-6 6-1 6-1 | | | | | | | | | |
31‑Jan‑1983 | Caracas | Hard | R32 | 77 | 28 | (2)Raul Ramirez [MEX] d. Krishnan | 6-1 6-3 | | | | | | | | | |
24‑Jan‑1983 | Guaruja | Hard | QF | 97 | 7 | (2)Mats Wilander [SWE] d. Krishnan | 6-1 6-1 | | | | | | | | | |
24‑Jan‑1983 | Guaruja | Hard | R16 | 97 | | Krishnan d. Stefan Simonsson [SWE] | 6-0 6-1 | | | | | | | | | |
24‑Jan‑1983 | Guaruja | Hard | R32 | 97 | 52 | Krishnan d. (11)Carlos Kirmayr [BRA] | 6-4 6-3 | | | | | | | | | |
24‑Jan‑1983 | Guaruja | Hard | R64 | 97 | | Krishnan d. Tim Gullikson [USA] | 6-1 6-2 | | | | | | | | | |