| 30‑Dec‑2024 | Canberra CH | Hard | R32 | 142 | 79 | Ajdukovic d. (2)Facundo Diaz Acosta [ARG] | 6-4 6-4 | | 1.21 | 1.6% | 0.0% | 68.8% | 75.0% | 65.0% | 2/2 | 1:24 |
| 4‑Nov‑2024 | Belgrade | Hard | Q2 | 115 | 91 | (3)Marton Fucsovics [HUN] d. (6)Ajdukovic | 7-5 6-3 | | 0.66 | 4.6% | 0.0% | 64.6% | 69.0% | 56.5% | 6/8 | 1:32 |
| 22‑Jul‑2024 | Umag | Clay | R32 | 110 | 33 | (5)Luciano Darderi [ITA] d. (SE)Ajdukovic | 6-1 6-4 | | 0.53 | 4.1% | 2.0% | 53.1% | 61.5% | 30.4% | 0/4 | 1:09 |
| 15‑Jul‑2024 | Bastad | Clay | QF | 130 | 85 | (Q)Ajdukovic d. Thiago Monteiro [BRA] | 6-2 4-6 6-4 | | 1.20 | 7.5% | 3.8% | 53.8% | 79.1% | 51.4% | 5/8 | 2:09 |
| 15‑Jul‑2024 | Bastad | Clay | R16 | 130 | 60 | (Q)Ajdukovic d. (8)Pavel Kotov [RUS] | 7-6(7) 3-6 6-3 | | 1.01 | 3.1% | 4.1% | 62.9% | 75.4% | 55.6% | 5/7 | 2:31 |
| 1‑Apr‑2024 | Houston | Clay | R32 | 115 | 92 | Brandon Nakashima [USA] d. Ajdukovic | 6-1 6-4 | | 0.64 | 2.1% | 2.1% | 53.2% | 60.0% | 59.1% | 2/5 | 1:19 |
| 16‑Oct‑2023 | Stockholm | Hard | Q1 | 180 | 81 | (1)Tomas Machac [CZE] d. Ajdukovic | 6-4 6-4 | | 0.50 | 7.6% | 1.3% | 58.2% | 71.7% | 45.5% | 9/11 | 1:27 |
| 17‑Sep‑2023 | Davis Cup Finals RR: CRO vs NED | Hard | RR | 206 | 68 | Botic Van De Zandschulp [NED] d. Ajdukovic | 6-3 3-6 7-5 | (ch) | 0.98 | 8.3% | 2.4% | 70.2% | 72.9% | 48.0% | 4/8 | |
| 25‑Jul‑2022 | Umag | Clay | R32 | 276 | 38 | (5)Alex Molcan [SVK] d. (WC)Ajdukovic | 6-2 7-6(2) | | 0.79 | 4.3% | 4.3% | 41.4% | 48.3% | 43.9% | 2/8 | 1:47 |
| 21‑Mar‑2022 | Zadar CH | Clay | R32 | 255 | 99 | Ajdukovic d. (1)Gianluca Mager [ITA] | 6-2 6-2 | | 1.49 | 5.9% | 0.0% | 58.8% | 63.3% | 61.9% | 1/2 | 1:15 |
| 28‑Feb‑2022 | Las Palmas CH | Clay | SF | 264 | 79 | (1)Roberto Carballes Baena [ESP] d. Ajdukovic | 6-3 7-6(4) | | 0.78 | 8.2% | 2.7% | 57.5% | 59.5% | 45.2% | 4/8 | 1:51 |
| 19‑Jul‑2021 | Umag | Clay | R16 | 275 | 43 | (1)Albert Ramos [ESP] d. (WC)Ajdukovic | 7-5 6-4 | | 0.79 | 5.4% | 4.1% | 60.8% | 60.0% | 44.8% | 6/10 | 1:53 |