24‑Dec‑1981 | Australian Open | Grass | R64 | 60 | 65 | Phil Dent [AUS] d. (16)Fitzgerald | 5-7 3-6 7-6 6-3 6-4 | | | | | | | | | |
14‑Dec‑1981 | Sydney Outdoor | Grass | R64 | 58 | | Craig A Miller [AUS] d. Fitzgerald | 7-6 2-6 6-3 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | 51 | | Mike Cahill [USA] d. (6)Fitzgerald | 7-5 6-1 | | | | | | | | | |
26‑Oct‑1981 | Tokyo Indoor | Carpet | R32 | 49 | 83 | Vincent Van Patten [USA] d. Fitzgerald | 6-2 6-4 | | | | | | | | | |
19‑Oct‑1981 | Melbourne Indoor | Carpet | QF | 51 | 46 | (4)Chris Lewis Nzl [NZL] d. (7)Fitzgerald | 5-7 6-2 6-3 | | | | | | | | | |
19‑Oct‑1981 | Melbourne Indoor | Carpet | R16 | 51 | 88 | (7)Fitzgerald d. John Alexander [AUS] | 5-7 7-5 6-4 | | | | | | | | | |
19‑Oct‑1981 | Melbourne Indoor | Carpet | R32 | 51 | | (7)Fitzgerald d. Brad Guan [AUS] | 6-7 6-3 6-2 | | | | | | | | | |
12‑Oct‑1981 | Sydney Indoor | Hard | SF | 58 | 9 | (2)Roscoe Tanner [USA] d. Fitzgerald | 6-2 6-3 | | | | | | | | | |
12‑Oct‑1981 | Sydney Indoor | Hard | QF | 58 | 11 | Fitzgerald d. (4)Peter Mcnamara [AUS] | 6-2 4-6 6-3 | | | | | | | | | |
12‑Oct‑1981 | Sydney Indoor | Hard | R16 | 58 | | Fitzgerald d. Jim Delaney [USA] | 7-5 6-2 | | | | | | | | | |
12‑Oct‑1981 | Sydney Indoor | Hard | R32 | 58 | | Fitzgerald d. Paul Kronk [AUS] | 6-3 6-4 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R64 | 61 | 11 | (7)Peter Mcnamara [AUS] d. Fitzgerald | 4-6 7-6 6-1 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R128 | 54 | 11 | (11)Peter Mcnamara [AUS] d. Fitzgerald | 7-6 2-6 6-3 6-3 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R64 | 53 | | (Q)Mike Cahill [USA] d. Fitzgerald | 6-4 7-6 | | | | | | | | | |
10‑Aug‑1981 | Montreal / Toronto | Hard | R32 | 56 | 10 | (5)Peter Mcnamara [AUS] d. Fitzgerald | 6-2 6-4 | | | | | | | | | |
10‑Aug‑1981 | Montreal / Toronto | Hard | R64 | 56 | | Fitzgerald d. (Q)Andy Kohlberg [USA] | 6-0 6-2 | | | | | | | | | |
3‑Aug‑1981 | Columbus | Hard | R32 | 50 | 34 | (5)Stan Smith [USA] d. Fitzgerald | 2-6 7-6 6-1 | | | | | | | | | |
20‑Jul‑1981 | Bastad | Clay | QF | 51 | 92 | Fernando Luna [ESP] d. (4)Fitzgerald | 6-4 6-7 6-2 | | | | | | | | | |
20‑Jul‑1981 | Bastad | Clay | R16 | 51 | | (4)Fitzgerald d. Leo Palin [FIN] | 6-3 6-3 | | | | | | | | | |
20‑Jul‑1981 | Bastad | Clay | R32 | 51 | | (4)Fitzgerald d. Olle Palmer [SWE] | 6-0 6-0 | | | | | | | | | |
13‑Jul‑1981 | Kitzbuhel | Clay | F | 69 | 7 | (7)Fitzgerald d. (1)Guillermo Vilas [ARG] | 3-6 6-3 7-5 | | | | | | | | | |
13‑Jul‑1981 | Kitzbuhel | Clay | SF | 69 | | (7)Fitzgerald d. (16)Klaus Eberhard [GER] | 4-6 6-3 6-4 | | | | | | | | | |
13‑Jul‑1981 | Kitzbuhel | Clay | QF | 69 | 16 | (7)Fitzgerald d. (3)Wojtek Fibak [POL] | 6-3 6-3 | | | | | | | | | |
13‑Jul‑1981 | Kitzbuhel | Clay | R16 | 69 | 91 | (7)Fitzgerald d. (10)Eduardo Bengoechea [ARG] | 7-5 6-0 | | | | | | | | | |
13‑Jul‑1981 | Kitzbuhel | Clay | R32 | 69 | | (7)Fitzgerald d. Robbie Venter [RSA] | 6-2 6-2 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R16 | 81 | | Rod Frawley [AUS] d. Fitzgerald | 6-4 6-3 7-6 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R32 | 81 | | Fitzgerald d. (Q)Mats Wilander [SWE] | 6-0 4-6 6-2 6-2 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R64 | 81 | 39 | Fitzgerald d. Bill Scanlon [USA] | 6-1 6-2 6-2 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R128 | 81 | | Fitzgerald d. (Q)Scott Mccain [USA] | 5-7 7-6 6-2 6-3 | | | | | | | | | |
13‑Jun‑1981 | Bristol | Grass | R16 | 88 | 8 | (1)Roscoe Tanner [USA] d. Fitzgerald | 4-6 6-4 6-4 | | | | | | | | | |
13‑Jun‑1981 | Bristol | Grass | R32 | 88 | | Fitzgerald d. Richard Meyer [USA] | 7-6 7-6 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R16 | 88 | 12 | (3)Brian Gottfried [USA] d. Fitzgerald | 6-7 6-3 7-5 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R32 | 88 | 64 | Fitzgerald d. Francisco Gonzalez [PAR] | 4-6 6-1 6-4 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R64 | 88 | 51 | Fitzgerald d. (15)Chris Lewis Nzl [NZL] | 4-6 6-4 8-6 | | | | | | | | | |
25‑May‑1981 | Roland Garros | Clay | R128 | 82 | 5 | (5)Ivan Lendl [USA] d. Fitzgerald | 7-5 7-6 6-4 | | | | | | | | | |
18‑May‑1981 | Rome | Clay | R32 | 87 | 8 | (3)Jose Luis Clerc [ARG] d. Fitzgerald | 6-2 6-3 | | | | | | | | | |
18‑May‑1981 | Rome | Clay | R64 | 87 | 52 | Fitzgerald d. Ricardo Ycaza [ECU] | 6-3 3-6 7-6 | | | | | | | | | |
11‑May‑1981 | Hamburg | Clay | R64 | 84 | | Mats Wilander [SWE] d. Fitzgerald | 5-7 7-5 6-4 | | | | | | | | | |
4‑May‑1981 | Forest Hills WCT | Clay | R32 | 91 | 9 | (2)Jose Luis Clerc [ARG] d. Fitzgerald | 6-3 7-5 | | | | | | | | | |
20‑Apr‑1981 | Tokyo CH | Clay | F | 94 | | (1)Fitzgerald d. (5)Roland Stadler [SUI] | 6-2 6-3 | | | | | | | | | |
20‑Apr‑1981 | Tokyo CH | Clay | SF | 94 | | (1)Fitzgerald d. (3)Gianluca Rinaldini [ITA] | 6-2 4-6 6-0 | | | | | | | | | |
20‑Apr‑1981 | Tokyo CH | Clay | QF | 94 | | (1)Fitzgerald d. (Q)Bruce Kleege [USA] | 6-4 4-6 7-6 | | | | | | | | | |
20‑Apr‑1981 | Tokyo CH | Clay | R16 | 94 | | (1)Fitzgerald d. Greg Whitecross [AUS] | 6-4 4-6 7-6 | | | | | | | | | |
20‑Apr‑1981 | Tokyo CH | Clay | R32 | 94 | | (1)Fitzgerald d. Ron Hightower [USA] | 6-0 7-6 | | | | | | | | | |
30‑Mar‑1981 | Linz | Hard | R16 | | 84 | Gianni Ocleppo [ITA] d. Fitzgerald | 6-4 7-5 | | | | | | | | | |
30‑Mar‑1981 | Linz | Hard | R32 | | 50 | Fitzgerald d. (2)Pavel Slozil [CZE] | 7-6 6-0 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | QF | | 5 | (1)Ivan Lendl [USA] d. Fitzgerald | 6-4 6-4 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | R16 | | 63 | Fitzgerald d. Rod Frawley [AUS] | 6-1 2-6 6-4 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | R32 | | | Fitzgerald d. Damir Keretic [GER] | 6-3 6-7 6-4 | | | | | | | | | |
16‑Mar‑1981 | Nancy | Hard | R16 | | 66 | (8)Shlomo Glickstein [ISR] d. Fitzgerald | 6-3 6-0 | | | | | | | | | |
16‑Mar‑1981 | Nancy | Hard | R32 | | 92 | Fitzgerald d. Russell Simpson [NZL] | 7-6 6-1 | | | | | | | | | |
9‑Mar‑1981 | Cairo | Clay | R32 | 100 | | Christophe Freyss [FRA] d. Fitzgerald | 6-4 6-3 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | F | | | Fitzgerald d. (4)Syd Ball [AUS] | 6-2 6-2 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | SF | | 98 | Fitzgerald d. (3)Eddie Edwards [RSA] | 2-6 7-6 7-5 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | QF | | | Fitzgerald d. Brad Guan [AUS] | 6-1 4-6 6-4 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | R16 | | | Fitzgerald d. (8)Wayne Hampson [AUS] | 6-3 6-7 6-4 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | R32 | | | Fitzgerald d. Eric Wilborts [NED] | 6-3 6-7 6-3 | | | | | | | | | |
12‑Jan‑1981 | Perth CH | Grass | R64 | | | Fitzgerald d. Jai Dilouie [USA] | 6-4 6-4 | | | | | | | | | |
5‑Jan‑1981 | Adelaide | Grass | QF | | | (7)Syd Ball [AUS] d. Fitzgerald | 7-6 7-5 | | | | | | | | | |
5‑Jan‑1981 | Adelaide | Grass | R16 | | | Fitzgerald d. Dale Collings [AUS] | 6-4 7-6 | | | | | | | | | |
5‑Jan‑1981 | Adelaide | Grass | R32 | | | Fitzgerald d. Jonathan Smith [GBR] | 6-3 6-4 | | | | | | | | | |