Results for the 2021 Maratona do Porto / Porto marathon, a World Athletics label road race, Sunday, November 7.
Top results men
| 1 | Zablon Chumba | KE | 02:08:58 |
| 2 | Bernard Kiprotich | KE | 02:09:42 |
| 3 | Asnake Dubre | ET | 02:10:14 |
| 4 | Sila Kiptoo | KE | 02:13:16 |
| 5 | Ezekiel Kipruto Kemboi | KE | 02:15:27 |
| 6 | Emmanuel Kibet | KE | 02:16:31 |
| 7 | Ezekiel Kimeli | KE | 02:20:48 |
| 8 | Carlos Costa | PT | 02:22:44 |
| 9 | Kidsan Alema | ET | 02:28:01 |
| 10 | Shewarge Alene Amare | ET | 02:28:16 |
Top results women
| 1 | Kidsan Alema | ET | 02:28:01 |
| 2 | Shewarge Alene Amare | ET | 02:28:16 |
| 3 | Motu Megersa | ET | 02:28:56 |
| 4 | Feyne Gemeda | ET | 02:29:32 |
| 5 | Tsegaye Melesech | ET | 02:29:38 |
| 6 | Lydiah Njeri Mathati | KE | 02:29:42 |
| 7 | Caroline Jepchirchir | KE | 02:29:45 |
| 8 | Solange Jesus | PT | 02:33:21 |