24‑Dec‑1981 | Australian Open | Grass | R16 | 44 | 33 | (8)Tim Mayotte [USA] d. (13)Dupre | 7-6 7-5 6-4 | | | | | | | | | |
24‑Dec‑1981 | Australian Open | Grass | R32 | 44 | | (13)Dupre d. Russell Simpson [NZL] | 6-4 6-4 6-2 | | | | | | | | | |
24‑Dec‑1981 | Australian Open | Grass | R64 | 44 | | (13)Dupre d. Brad Guan [AUS] | 6-4 6-7 4-6 6-3 6-3 | | | | | | | | | |
14‑Dec‑1981 | Sydney Outdoor | Grass | R32 | 49 | | Chris Johnstone [AUS] d. (14)Dupre | 3-6 6-0 6-1 | | | | | | | | | |
14‑Dec‑1981 | Sydney Outdoor | Grass | R64 | 49 | 71 | (14)Dupre d. Mats Wilander [SWE] | 6-4 4-6 6-2 | | | | | | | | | |
30‑Nov‑1981 | Bahia CH | Clay | F | 49 | | (3)Dupre d. Joao Soares [BRA] | 5-7 7-6 6-4 | | | | | | | | | |
30‑Nov‑1981 | Bahia CH | Clay | SF | 49 | 83 | (3)Dupre d. (5)Jose Lopez Maeso [ESP] | 6-3 6-3 | | | | | | | | | |
30‑Nov‑1981 | Bahia CH | Clay | QF | 49 | | (3)Dupre d. Givaldo Barbosa [BRA] | 6-2 6-4 | | | | | | | | | |
30‑Nov‑1981 | Bahia CH | Clay | R16 | 49 | | (3)Dupre d. Celso Sacomandi [BRA] | 6-3 6-0 | | | | | | | | | |
30‑Nov‑1981 | Bahia CH | Clay | R32 | 49 | | (3)Dupre d. Hans Dieter Beutel [GER] | 6-2 6-0 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | F | 57 | | Robert Vant Hof [USA] d. Dupre | 7-5 6-2 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | SF | 57 | 30 | Dupre d. (4)Mark Edmondson [AUS] | 6-3 3-6 6-4 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | QF | 57 | | Dupre d. (Q)Ivan Dupasquier [SUI] | 7-6 6-3 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | R16 | 57 | | Dupre d. Chris Dunk [USA] | 6-2 6-4 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | R32 | 57 | 17 | Dupre d. (1)Kim Warwick [AUS] | 6-0 7-6 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R16 | 59 | 58 | Tim Gullikson [USA] d. (7)Dupre | 6-3 7-5 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | 59 | | (7)Dupre d. Robert Vant Hof [USA] | 6-7 6-2 6-4 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | SF | 62 | 18 | (2)Balazs Taroczy [HUN] d. (11)Dupre | 6-3 4-6 6-2 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | QF | 62 | 17 | (11)Dupre d. (3)Wojtek Fibak [POL] | 7-6 6-4 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | R16 | 62 | 45 | (11)Dupre d. (7)Heinz Gunthardt [SUI] | 7-5 6-2 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | R32 | 62 | | (11)Dupre d. Hitoshi Shirato [JPN] | 6-1 6-2 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | R64 | 62 | | (11)Dupre d. Akinori Naguro [JPN] | 6-1 6-3 | | | | | | | | | |
29‑Sep‑1981 | Maui | Hard | R32 | 73 | | David Dowlen [USA] d. (8)Dupre | 4-6 6-3 6-4 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | QF | 73 | 25 | (14)Vijay Amritraj [IND] d. Dupre | 6-3 7-6 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R16 | 73 | 7 | Dupre d. (3)Gene Mayer [USA] | 7-5 3-6 6-3 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R32 | 73 | 49 | Dupre d. Victor Amaya [USA] | 6-4 7-6 | | | | | | | | | |
21‑Sep‑1981 | San Francisco | Carpet | R64 | 73 | 19 | Dupre d. (10)Harold Solomon [USA] | 6-1 1-6 7-6 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R32 | 80 | 1 | (1)John Mcenroe [USA] d. Dupre | 6-3 6-2 6-3 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R64 | 80 | | Dupre d. Chip Hooper [USA] | 6-4 6-2 6-4 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R128 | 80 | | Dupre d. Jim Delaney [USA] | 6-3 6-3 4-6 6-2 | | | | | | | | | |
17‑Aug‑1981 | Cincinnati | Hard | R64 | 72 | 13 | (7)Harold Solomon [USA] d. Dupre | 6-2 3-6 6-3 | | | | | | | | | |
10‑Aug‑1981 | Montreal / Toronto | Hard | R64 | 69 | | Jim Gurfein [USA] d. Dupre | 3-6 6-2 6-4 | | | | | | | | | |
3‑Aug‑1981 | Columbus | Hard | R32 | 62 | 69 | Tim Gullikson [USA] d. Dupre | 3-6 6-2 6-3 | | | | | | | | | |
13‑Jul‑1981 | Stuttgart Outdoor | Clay | R16 | 55 | 32 | (6)Paul Mcnamee [AUS] d. Dupre | 7-5 6-2 | | | | | | | | | |
13‑Jul‑1981 | Stuttgart Outdoor | Clay | R32 | 55 | | Dupre d. Onny Parun [NZL] | 6-0 7-6 | | | | | | | | | |
6‑Jul‑1981 | Gstaad | Clay | R16 | 57 | 16 | (1)Yannick Noah [FRA] d. Dupre | 7-6 6-3 | | | | | | | | | |
6‑Jul‑1981 | Gstaad | Clay | R32 | 57 | | Dupre d. Markus Gunthardt [SUI] | 6-2 3-6 6-4 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R64 | 52 | 60 | Tony Giammalva [USA] d. Dupre | 6-3 6-4 1-6 6-3 | | | | | | | | | |
22‑Jun‑1981 | Wimbledon | Grass | R128 | 52 | 26 | Dupre d. Tomas Smid [CZE] | 7-5 6-3 3-6 6-2 | | | | | | | | | |
8‑Jun‑1981 | Queen's Club | Grass | R64 | 49 | 83 | Hank Pfister [USA] d. (14)Dupre | 7-6 7-5 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | QF | 55 | 61 | Chris Lewis Nzl [NZL] d. (6)Dupre | 6-3 6-3 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | R16 | 55 | 96 | (6)Dupre d. Klaus Eberhard [GER] | 6-2 6-4 | | | | | | | | | |
23‑Mar‑1981 | Stuttgart Indoor | Hard | R32 | 55 | | (6)Dupre d. (Q)Christoph Zipf [GER] | 7-6 6-1 | | | | | | | | | |
16‑Mar‑1981 | Rotterdam | Hard | R32 | 51 | | Eric Wilborts [NED] d. Dupre | 2-6 6-4 6-4 | | | | | | | | | |
9‑Mar‑1981 | Brussels | Carpet | R16 | 51 | 3 | (2)Jimmy Connors [USA] d. Dupre | 4-6 6-3 6-3 | | | | | | | | | |
9‑Mar‑1981 | Brussels | Carpet | R32 | 51 | 42 | Dupre d. Carlos Kirmayr [BRA] | 6-3 6-1 | | | | | | | | | |
23‑Feb‑1981 | Memphis | Carpet | R64 | 47 | 25 | (12)Tomas Smid [CZE] d. Dupre | 6-1 7-5 | | | | | | | | | |
16‑Feb‑1981 | La Quinta | Hard | QF | 54 | 3 | (1)Jimmy Connors [USA] d. Dupre | 6-1 6-1 | | | | | | | | | |
16‑Feb‑1981 | La Quinta | Hard | R16 | 54 | 61 | Dupre d. Phil Dent [AUS] | 6-4 6-0 | | | | | | | | | |
16‑Feb‑1981 | La Quinta | Hard | R32 | 54 | 58 | Dupre d. Christophe Roger Vasselin [FRA] | 6-7 7-5 6-4 | | | | | | | | | |
16‑Feb‑1981 | La Quinta | Hard | R64 | 54 | | Dupre d. Glen Holroyd [USA] | 6-4 6-1 | | | | | | | | | |
26‑Jan‑1981 | Philadelphia | Carpet | R64 | 51 | 48 | Sandy Mayer [USA] d. Dupre | 7-6 3-6 6-4 | | | | | | | | | |
19‑Jan‑1981 | Monterrey WCT | Carpet | R32 | 53 | 49 | Butch Walts [USA] d. Dupre | 4-6 6-1 6-3 | | | | | | | | | |