25‑Nov‑1991 | Bossonnens CH | Hard | R32 | 94 | 69 | (2)Stefano Pescosolido [ITA] d. Masso | 7-6 6-3 | | | | | | | | | |
11‑Nov‑1991 | Sao Paulo6 CH | Clay | R16 | 95 | 153 | Joao Cunha Silva [POR] d. (3)Masso | 2-6 7-6 2-0 RET | | | | | | | | | |
11‑Nov‑1991 | Sao Paulo6 CH | Clay | R32 | 95 | 175 | (3)Masso d. Jose Daher [BRA] | 6-2 1-0 RET | | | | | | | | | |
4‑Nov‑1991 | Sao Paulo | Hard | QF | 100 | 37 | (7)Francisco Clavet [ESP] d. Masso | 6-1 6-1 | | 0.59 | 2.2% | 6.5% | 50.0% | 52.2% | 34.8% | 0/5 | 1:10 |
4‑Nov‑1991 | Sao Paulo | Hard | R16 | 100 | 13 | Masso d. (1)Emilio Sanchez [ESP] | W/O | | | | | | | | | |
4‑Nov‑1991 | Sao Paulo | Hard | R32 | 100 | 215 | Masso d. (Q)Fabio Silberberg [BRA] | 3-6 7-6(5) 6-2 | | 1.05 | 0.0% | 0.0% | 73.8% | 64.6% | 53.6% | 13/16 | 2:40 |
28‑Oct‑1991 | Buzios | Hard | R32 | 103 | 37 | (6)Francisco Clavet [ESP] d. Masso | 6-0 6-1 | | 0.40 | 0.0% | 0.0% | 76.2% | 37.5% | 10.0% | 4/10 | 0:43 |
21‑Oct‑1991 | Guaruja | Hard | R32 | 104 | 36 | (4)Paul Haarhuis [NED] d. Masso | 6-2 6-1 | | 0.60 | 0.0% | 2.4% | 73.8% | 51.6% | 36.4% | 1/5 | 1:01 |
30‑Sep‑1991 | Athens | Clay | R32 | 101 | 40 | (5)Francisco Clavet [ESP] d. Masso | 7-6(5) 6-3 | | 0.79 | 2.7% | 5.4% | 45.9% | 67.6% | 42.5% | 3/7 | 1:55 |
20‑Sep‑1991 | Davis Cup WG PO: BEL vs ISR | Clay | RR | 94 | 67 | Masso d. Amos Mansdorf [ISR] | 3-6 7-6(3) 6-4 6-1 | | | | | | | | | |
20‑Sep‑1991 | Davis Cup WG PO: BEL vs ISR | Clay | RR | 94 | 102 | Masso d. Gilad Bloom [ISR] | 7-6(6) 6-3 | | | | | | | | | |
9‑Sep‑1991 | Geneva | Clay | R16 | 98 | 456 | (WC)Andrei Medvedev [UKR] d. Masso | 5-7 7-6(3) 6-1 | | 0.78 | 1.0% | 2.0% | 79.0% | 48.1% | 57.1% | 5/12 | 2:00 |
9‑Sep‑1991 | Geneva | Clay | R32 | 98 | 64 | 6-3 6-3 | | 1.40 | 0.0% | 1.8% | 53.6% | 60.0% | 65.4% | 4/6 | 1:24 |
2‑Sep‑1991 | Venice CH | Clay | R16 | 102 | 26 | (1)Alberto Mancini [ARG] d. Masso | 6-1 6-2 | | | | | | | | | |
2‑Sep‑1991 | Venice CH | Clay | R32 | 102 | 148 | Masso d. Christian Miniussi [ARG] | 2-6 6-0 6-1 | | | | | | | | | |
26‑Aug‑1991 | Merano CH | Clay | R32 | 102 | 544 | (Q)Massimo Valeri [ITA] d. (1)Masso | 6-3 6-4 | | | | | | | | | |
15‑Jul‑1991 | Tampere CH | Clay | R16 | 57 | 159 | Johan Anderson [AUS] d. (2)Masso | 6-1 6-4 | | | | | | | | | |
15‑Jul‑1991 | Tampere CH | Clay | R32 | 57 | 633 | (2)Masso d. (Q)Mikael Tillstrom [SWE] | 3-6 6-3 6-4 | | | | | | | | | |
8‑Jul‑1991 | Bastad | Clay | R16 | 67 | 83 | 7-5 7-6(9) | | 1.00 | 0.0% | 2.4% | 78.8% | 52.2% | 44.4% | 7/13 | 2:01 |
8‑Jul‑1991 | Bastad | Clay | R32 | 67 | 29 | Masso d. (4)Anders Jarryd [SWE] | 6-3 6-1 | | 1.77 | 0.0% | 2.3% | 74.4% | 62.5% | 63.6% | 3/5 | 1:01 |
24‑Jun‑1991 | Wimbledon | Grass | R128 | 67 | 58 | Christian Bergstrom [SWE] d. Masso | 6-1 7-5 6-3 | | 0.66 | 0.0% | 4.9% | 67.6% | 47.8% | 54.5% | 12/19 | 1:43 |
17‑Jun‑1991 | Genova | Clay | SF | 81 | 41 | (3)Jordi Arrese [ESP] d. Masso | 7-6(5) 6-3 | | 0.89 | 1.5% | 4.6% | 64.6% | 64.3% | 30.4% | 2/7 | 1:53 |
17‑Jun‑1991 | Genova | Clay | QF | 81 | 82 | Masso d. (8)Jean Philippe Fleurian [FRA] | 7-5 6-1 | | 1.46 | 0.0% | 5.5% | 78.2% | 72.1% | 25.0% | 2/4 | 1:25 |
17‑Jun‑1991 | Genova | Clay | R16 | 81 | 40 | Masso d. (2)Mark Koevermans [NED] | 6-4 6-4 | | 1.13 | 0.0% | 1.4% | 81.9% | 54.2% | 84.6% | 1/3 | 1:45 |
17‑Jun‑1991 | Genova | Clay | R32 | 81 | 234 | Masso d. (WC)Francesco Cancellotti [ITA] | 6-2 7-5 | | 1.26 | 1.7% | 1.7% | 91.5% | 59.3% | 40.0% | 1/4 | 1:17 |
10‑Jun‑1991 | Florence | Clay | SF | 98 | 24 | (1)Horst Skoff [AUT] d. Masso | 6-4 6-4 | | 0.75 | 1.8% | 5.5% | 65.5% | 58.3% | 47.4% | 1/5 | 1:18 |
10‑Jun‑1991 | Florence | Clay | QF | 98 | 42 | 6-3 4-6 6-1 | | 1.22 | 1.0% | 1.0% | 76.0% | 60.8% | 52.0% | 10/13 | 2:05 |
10‑Jun‑1991 | Florence | Clay | R16 | 98 | 62 | Masso d. Javier Sanchez [ESP] | 6-3 7-6(4) | | 1.08 | 0.0% | 2.0% | 88.2% | 65.6% | 41.7% | 8/9 | 1:57 |
10‑Jun‑1991 | Florence | Clay | R32 | 98 | 43 | Masso d. (4)Jordi Arrese [ESP] | 6-2 5-7 6-1 | | 1.32 | 1.4% | 2.7% | 64.4% | 59.6% | 61.5% | 3/6 | 2:18 |
27‑May‑1991 | Roland Garros | Clay | R128 | 99 | 49 | Aaron Krickstein [USA] d. Masso | 6-7(3) 6-4 2-6 6-4 7-5 | | | | | | | | | |
20‑May‑1991 | Bologna | Clay | QF | 109 | 132 | 6-0 6-2 | | 0.48 | 0.0% | 8.5% | 61.7% | 44.8% | 33.3% | 3/8 | 1:00 |
20‑May‑1991 | Bologna | Clay | R16 | 109 | 79 | Masso d. Wayne Ferreira [RSA] | 7-6(5) 3-3 RET | | 0.95 | 1.4% | 5.4% | 50.0% | 64.9% | 51.4% | 5/7 | 1:50 |
20‑May‑1991 | Bologna | Clay | R32 | 109 | 52 | Masso d. (5)Francisco Clavet [ESP] | 6-2 7-5 | | 1.21 | 1.7% | 8.6% | 44.8% | 69.2% | 43.8% | 2/5 | 1:30 |
29‑Apr‑1991 | Madrid | Clay | R32 | 109 | 80 | Thierry Champion [FRA] d. Masso | 6-0 3-6 6-3 | | 0.78 | 0.0% | 0.0% | 92.6% | 50.7% | 33.3% | 5/12 | 2:11 |
22‑Apr‑1991 | Singapore | Hard | R32 | 105 | 82 | Gilad Bloom [ISR] d. Masso | 7-5 7-5 | | 0.91 | 1.1% | 2.2% | 54.8% | 58.8% | 40.5% | 14/20 | 2:04 |
15‑Apr‑1991 | Seoul | Hard | R32 | 99 | 92 | Dan Goldie [USA] d. Masso | 2-6 6-1 6-3 | | 0.95 | 0.0% | 14.9% | 38.8% | 69.2% | 43.9% | 2/7 | 1:45 |
8‑Apr‑1991 | Tokyo Outdoor | Hard | R64 | 99 | 50 | (16)Wally Masur [AUS] d. Masso | 6-4 6-3 | | 0.71 | 1.6% | 1.6% | 75.8% | 51.1% | 66.7% | 7/10 | 1:22 |
1‑Apr‑1991 | Hong Kong | Hard | R16 | 113 | 93 | Richard Krajicek [NED] d. Masso | 6-1 6-3 | | 0.57 | 0.0% | 8.3% | 65.0% | 53.8% | 42.9% | 4/8 | 1:00 |
1‑Apr‑1991 | Hong Kong | Hard | R32 | 113 | 19 | Masso d. (3)Michael Stich [GER] | 7-5 6-4 | | 1.11 | 0.0% | 2.7% | 52.7% | 59.0% | 65.7% | 4/6 | 1:23 |
4‑Mar‑1991 | Copenhagen | Carpet | R32 | 108 | 264 | (WC)Frederik Fetterlein [DEN] d. Masso | 3-6 6-3 6-2 | | 0.66 | 0.0% | 6.7% | 59.6% | 62.3% | 44.4% | 9/13 | 1:46 |
11‑Feb‑1991 | Brussels | Carpet | R16 | 124 | 11 | (4)Guy Forget [FRA] d. (WC)Masso | 6-1 6-2 | | 0.53 | 0.0% | 2.3% | 65.1% | 46.4% | 46.7% | 2/6 | 0:54 |
11‑Feb‑1991 | Brussels | Carpet | R32 | 124 | 26 | (WC)Masso d. Richard Fromberg [AUS] | 6-3 6-7(3) 6-3 | | 1.10 | 2.0% | 3.1% | 62.2% | 72.1% | 54.1% | 5/7 | 2:10 |
1‑Feb‑1991 | Davis Cup WG R1: AUS vs BEL | Grass | RR | 119 | 52 | Wally Masur [AUS] d. Masso | 6-3 6-3 6-1 | | | | | | | | | |
1‑Feb‑1991 | Davis Cup WG R1: AUS vs BEL | Grass | RR | 119 | 27 | Richard Fromberg [AUS] d. Masso | 6-3 1-6 6-3 | | | | | | | | | |
14‑Jan‑1991 | Australian Open | Hard | R64 | 124 | 1 | (1)Stefan Edberg [SWE] d. Masso | 6-1 6-2 6-3 | | 0.62 | 0.0% | 0.0% | 69.0% | 42.9% | 45.5% | 6/14 | 1:26 |
14‑Jan‑1991 | Australian Open | Hard | R128 | 124 | 81 | Masso d. Brad Pearce [USA] | 6-7(4) 6-1 6-7(6) 6-3 8-6 | | 1.22 | 2.2% | 1.1% | 78.0% | 61.4% | 65.9% | 8/15 | 3:40 |