27‑Oct‑2003 | Waco CH | Hard | QF | 216 | 132 | (5)Giovanni Lapentti [ECU] d. Delgado | 3-6 6-2 6-3 | | | | | | | | | |
27‑Oct‑2003 | Waco CH | Hard | R16 | 216 | 77 | Delgado d. (1)Brian Vahaly [USA] | 6-2 6-2 | | | | | | | | | |
27‑Oct‑2003 | Waco CH | Hard | R32 | 216 | 206 | Delgado d. Frank Dancevic [CAN] | 6-4 6-1 | | | | | | | | | |
20‑Oct‑2003 | Torrance CH | Hard | R16 | 219 | 243 | (Q)Matias Boeker [USA] d. Delgado | 6-7(5) 6-1 6-2 | | | | | | | | | |
20‑Oct‑2003 | Torrance CH | Hard | R32 | 219 | 339 | Delgado d. (LL)KJ Hippensteel [USA] | 6-3 6-4 | | | | | | | | | |
13‑Oct‑2003 | Tiburon CH | Hard | R16 | 227 | 117 | (5)Alex Bogomolov Jr [RUS] d. Delgado | 7-5 7-5 | | | | | | | | | |
13‑Oct‑2003 | Tiburon CH | Hard | R32 | 227 | 224 | Delgado d. (Q)Satoshi Iwabuchi [JPN] | 6-4 6-4 | | | | | | | | | |
19‑Sep‑2003 | Davis Cup G2 F: DOM vs PAR | Hard | RR | 221 | 949 | Delgado d. Jhonson Garcia [DOM] | 6-1 6-2 6-4 | | | | | | | | | |
19‑Sep‑2003 | Davis Cup G2 F: DOM vs PAR | Hard | RR | 221 | 884 | Delgado d. Victor Estrella [DOM] | 6-2 6-2 6-1 | | | | | | | | | |
8‑Sep‑2003 | Costa Do Sauipe | Hard | QF | 180 | 8 | (1)Rainer Schuettler [GER] d. Delgado | 6-1 6-3 | | 0.44 | 0.0% | 16.7% | 52.1% | 52.0% | 30.4% | 2/7 | 0:57 |
8‑Sep‑2003 | Costa Do Sauipe | Hard | R16 | 180 | 46 | Delgado d. (7)Flavio Saretta [BRA] | 2-6 6-3 6-4 | | 0.96 | 6.8% | 2.3% | 62.5% | 63.6% | 57.6% | 7/10 | 1:55 |
8‑Sep‑2003 | Costa Do Sauipe | Hard | R32 | 180 | 105 | Delgado d. Mariano Puerta [ARG] | 6-3 5-1 RET | | 1.46 | 17.3% | 1.9% | 61.5% | 81.3% | 55.0% | 3/3 | 1:02 |
25‑Aug‑2003 | US Open | Hard | R64 | 158 | 44 | Jonas Bjorkman [SWE] d. (Q)Delgado | 4-6 6-4 6-4 3-6 6-3 | | 0.71 | 8.0% | 5.3% | 59.9% | 64.3% | 60.0% | 15/18 | 3:17 |
25‑Aug‑2003 | US Open | Hard | R128 | 158 | 9 | (Q)Delgado d. (9)Sebastien Grosjean [FRA] | 6-4 6-7(3) 4-6 7-6(7) 6-4 | | 0.88 | 4.3% | 1.6% | 67.6% | 69.3% | 49.2% | 6/10 | 4:12 |
4‑Aug‑2003 | Canada Masters | Hard | R32 | 168 | 10 | (9)Sebastien Grosjean [FRA] d. (Q)Delgado | 6-3 6-2 | | 0.73 | 4.7% | 7.0% | 69.8% | 60.0% | 38.5% | 3/7 | 1:05 |
4‑Aug‑2003 | Canada Masters | Hard | R64 | 168 | 42 | (Q)Delgado d. Ivan Ljubicic [CRO] | 7-6(0) 7-6(3) | | 1.30 | 2.5% | 2.5% | 66.7% | 77.8% | 70.4% | 5/5 | 1:48 |
28‑Jul‑2003 | Washington | Hard | R64 | 170 | 183 | (Q)Julien Benneteau [FRA] d. Delgado | 2-6 7-6(4) 6-3 | | 1.04 | 4.1% | 1.0% | 72.2% | 70.0% | 48.1% | 12/14 | 1:55 |
21‑Jul‑2003 | Indianapolis | Hard | R64 | 178 | 117 | Wesley Moodie [RSA] d. Delgado | 6-4 2-6 6-4 | | 0.91 | 4.9% | 2.5% | 75.3% | 73.8% | 50.0% | 3/5 | 2:34 |
14‑Jul‑2003 | Stuttgart | Clay | R64 | 176 | 67 | Alberto Martin [ESP] d. Delgado | 7-6(1) 6-3 | | 0.78 | 6.9% | 2.8% | 72.2% | 57.7% | 50.0% | 2/5 | 1:34 |