16‑Nov‑2009 | Lima CH | Clay | R32 | 171 | 475 | (Q)Cristobal Saavedra Corvalan [CHI] d. (4)Gaudio | 6-2 7-5 | | | | | | | | | |
9‑Nov‑2009 | Guayaquil CH | Clay | R32 | 171 | 183 | (8)Brian Dabul [ARG] d. Gaudio | 6-2 3-6 6-1 | | | | | | | | | |
26‑Oct‑2009 | Sao Paulo2 CH | Clay | R32 | 181 | 127 | (7)Nicolas Massu [CHI] d. Gaudio | 7-5 6-3 | | | | | | | | | |
19‑Oct‑2009 | Florianopolis CH | Clay | SF | 193 | 151 | (5)Pere Riba [ESP] d. (8)Gaudio | 6-3 6-2 | | | | | | | | | |
19‑Oct‑2009 | Florianopolis CH | Clay | QF | 193 | 218 | (8)Gaudio d. Jonathan Dasnieres De Veigy [FRA] | 6-3 2-6 6-0 | | | | | | | | | |
19‑Oct‑2009 | Florianopolis CH | Clay | R16 | 193 | 320 | (8)Gaudio d. Leonardo Kirche [BRA] | 7-5 6-1 | | | | | | | | | |
19‑Oct‑2009 | Florianopolis CH | Clay | R32 | 193 | 741 | (8)Gaudio d. (Q)Franco Skugor [CRO] | 6-3 2-6 6-3 | | | | | | | | | |
12‑Oct‑2009 | Asuncion CH | Clay | QF | 201 | 91 | (5)Daniel Gimeno Traver [ESP] d. Gaudio | 6-3 6-1 | | | | | | | | | |
12‑Oct‑2009 | Asuncion CH | Clay | R16 | 201 | 309 | Gaudio d. (WC)Mariano Puerta [ARG] | 6-4 6-4 | | | | | | | | | |
12‑Oct‑2009 | Asuncion CH | Clay | R32 | 201 | 118 | Gaudio d. (2)Nicolas Massu [CHI] | 6-1 7-5 | | | | | | | | | |
5‑Oct‑2009 | Montevideo CH | Clay | SF | 228 | 54 | (1)Pablo Cuevas [URU] d. Gaudio | 6-2 6-4 | | | | | | | | | |
5‑Oct‑2009 | Montevideo CH | Clay | QF | 228 | 307 | Gaudio d. (WC)Luis Horna [PER] | 6-3 6-4 | | | | | | | | | |
5‑Oct‑2009 | Montevideo CH | Clay | R16 | 228 | 92 | Gaudio d. (4)Nicolas Massu [CHI] | 2-6 6-3 6-4 | | | | | | | | | |
5‑Oct‑2009 | Montevideo CH | Clay | R32 | 228 | 139 | Gaudio d. Brian Dabul [ARG] | 6-3 6-4 | | | | | | | | | |
28‑Sep‑2009 | Buenos Aires CH | Clay | F | 296 | 73 | (1)Horacio Zeballos [ARG] d. Gaudio | 6-2 3-6 6-3 | | | | | | | | | |
28‑Sep‑2009 | Buenos Aires CH | Clay | SF | 296 | 110 | Gaudio d. (4)Juan Ignacio Chela [ARG] | 6-4 6-2 | | | | | | | | | |
28‑Sep‑2009 | Buenos Aires CH | Clay | QF | 296 | 70 | Gaudio d. (2)Maximo Gonzalez [ARG] | 3-6 6-3 6-0 | | | | | | | | | |
28‑Sep‑2009 | Buenos Aires CH | Clay | R16 | 296 | 154 | Gaudio d. Diego Junqueira [ARG] | 6-2 6-2 | | | | | | | | | |
28‑Sep‑2009 | Buenos Aires CH | Clay | R32 | 296 | 356 | Gaudio d. (WC)Mariano Zabaleta [ARG] | 6-1 7-6(3) | | | | | | | | | |
31‑Aug‑2009 | US Open | Hard | Q1 | 313 | 167 | Julian Reister [GER] d. Gaudio | 6-1 7-6(3) | | | | | | | | | |
10‑Aug‑2009 | Cordenons CH | Clay | R32 | 314 | 97 | (7)Alberto Martin [ESP] d. (WC)Gaudio | 4-6 6-3 6-1 | | | | | | | | | |
3‑Aug‑2009 | San Marino CH | Clay | R32 | 312 | 48 | (1)Andreas Seppi [ITA] d. (WC)Gaudio | 6-0 4-6 6-0 | | | | | | | | | |
26‑Jul‑2009 | Gstaad | Clay | R32 | 313 | 70 | Mikhail Youzhny [RUS] d. (WC)Gaudio | 6-3 5-7 6-4 | | 0.99 | 0.0% | 5.8% | 63.3% | 61.8% | 47.7% | 14/20 | 2:47 |
20‑Jul‑2009 | Poznan CH | Clay | R32 | 316 | 114 | (5)Rui Machado [POR] d. (WC)Gaudio | 6-2 6-4 | | | | | | | | | |
25‑May‑2009 | Roland Garros | Clay | R128 | 357 | 19 | (18)Radek Stepanek [CZE] d. (WC)Gaudio | 6-3 6-4 6-1 | | 0.69 | 4.8% | 2.4% | 68.7% | 57.9% | 46.2% | 5/11 | 1:52 |
11‑May‑2009 | Bordeaux CH | Clay | QF | 395 | 150 | Laurent Recouderc [FRA] d. (WC)Gaudio | 2-6 6-4 6-4 | | | | | | | | | |
11‑May‑2009 | Bordeaux CH | Clay | R16 | 395 | 43 | (WC)Gaudio d. (1)Fabrice Santoro [FRA] | 4-6 7-6(7) 6-2 | | | | | | | | | |
11‑May‑2009 | Bordeaux CH | Clay | R32 | 395 | 207 | (WC)Gaudio d. (Q)Jean Rene Lisnard [MON] | 6-2 7-6(4) | | | | | | | | | |
3‑May‑2009 | Estoril | Clay | R32 | 400 | 75 | Fabio Fognini [ITA] d. (WC)Gaudio | 6-3 6-4 | | 0.85 | 0.0% | 8.8% | 59.6% | 73.5% | 39.1% | 4/7 | 1:19 |
27‑Apr‑2009 | Tunis CH | Clay | F | 762 | 71 | (WC)Gaudio d. (4)Frederico Gil [POR] | 6-2 1-6 6-3 | | | | | | | | | |
27‑Apr‑2009 | Tunis CH | Clay | SF | 762 | 50 | (WC)Gaudio d. (1)Jarkko Nieminen [FIN] | 6-2 1-0 RET | | | | | | | | | |
27‑Apr‑2009 | Tunis CH | Clay | QF | 762 | 157 | (WC)Gaudio d. Alexandre Sidorenko [FRA] | 6-0 6-2 | | | | | | | | | |
27‑Apr‑2009 | Tunis CH | Clay | R16 | 762 | 73 | (WC)Gaudio d. (3)Bjorn Phau [GER] | 3-6 6-2 6-4 | | | | | | | | | |
27‑Apr‑2009 | Tunis CH | Clay | R32 | 762 | 143 | (WC)Gaudio d. Daniel Brands [GER] | 6-4 6-2 | | | | | | | | | |
20‑Apr‑2009 | Barcelona | Clay | R32 | 966 | 16 | (6)Tommy Robredo [ESP] d. (WC)Gaudio | 7-6(6) 6-1 | | 0.79 | 0.0% | 4.4% | 63.2% | 58.1% | 40.0% | 4/8 | 1:31 |
20‑Apr‑2009 | Barcelona | Clay | R64 | 966 | 77 | (WC)Gaudio d. Diego Junqueira [ARG] | 6-4 3-6 6-4 | | 1.01 | 5.0% | 2.0% | 62.0% | 58.1% | 52.6% | 6/11 | 2:14 |
6‑Apr‑2009 | Houston | Clay | Q1 | 974 | 290 | Dusan Vemic [SRB] d. Gaudio | 7-6(4) 6-4 | | | | | | | | | |
25‑Mar‑2009 | Miami Masters | Hard | Q1 | 974 | 84 | (6)Evgeny Korolev [KAZ] d. (WC)Gaudio | 6-2 3-6 7-5 | | | | | | | | | |
9‑Mar‑2009 | Santiago CH | Clay | R16 | 1085 | 1372 | Mariano Zabaleta [ARG] d. (WC)Gaudio | 4-6 6-2 6-3 | | | | | | | | | |
9‑Mar‑2009 | Santiago CH | Clay | R32 | 1085 | 506 | (WC)Gaudio d. (LL)Gonzalo Tur [ARG] | 6-2 6-4 | | | | | | | | | |
16‑Feb‑2009 | Buenos Aires | Clay | R32 | 1094 | 87 | Daniel Gimeno Traver [ESP] d. (WC)Gaudio | 6-2 4-6 6-2 | | 0.87 | 1.4% | 15.9% | 72.5% | 64.0% | 15.8% | 6/13 | 1:58 |
19‑Jan‑2009 | Iquique CH | Clay | QF | | 176 | (6)Juan Pablo Brzezicki [ARG] d. (WC)Gaudio | RET | | | | | | | | | |
19‑Jan‑2009 | Iquique CH | Clay | R16 | | 167 | (WC)Gaudio d. (3)Diego Hartfield [ARG] | 6-1 2-6 7-5 | | | | | | | | | |
19‑Jan‑2009 | Iquique CH | Clay | R32 | | 241 | (WC)Gaudio d. Alessio Di Mauro [ITA] | 6-0 4-6 6-2 | | | | | | | | | |