| ITF Egypt F14 | 04/19 12:10 | 25 | Όγκουστ Χόλμγκρεν v Νταβίντ Χόρντα Σαντσίς | 6-2,6-4 | |
| ITF Egypt F14 | 04/17 08:00 | 44 | Romain Bauvy v Όγκουστ Χόλμγκρεν | 4-6,3-6 | |
| ITF Egypt F14 | 04/16 08:00 | 44 | Jaime Pulgar-Garcia v Όγκουστ Χόλμγκρεν | 6-4,4-6,1-6 | |
| Ντέιβις Καπ | 04/09 12:05 | 27 | Simen Sunde Bratholm v Όγκουστ Χόλμγκρεν | 6-7,5-7 | |
| ITF Egypt F11 | 03/29 09:10 | 25 | Thomas Brechemier v Όγκουστ Χόλμγκρεν | 6-3,6-2 | |
| ITF Egypt F20 | 03/27 09:00 | 62 | Όγκουστ Χόλμγκρεν v Nino Portales | 6-4,6-7,6-2 | |
| ITF Egypt F20 | 03/26 10:30 | 62 | Romain Bauvy v Όγκουστ Χόλμγκρεν | 7-6,4-6,4-6 | |
| ITF Egypt F10 | 03/22 12:50 | 25 | Όγκουστ Χόλμγκρεν v Γκάις Μπρούβερ | 5-7,6-7 | |
| ITF Egypt F20 | 03/20 08:00 | 62 | Nino Portales v Όγκουστ Χόλμγκρεν | 6-3,2-6,1-6 | |
| ITF Egypt F20 | 03/19 08:00 | 62 | Όγκουστ Χόλμγκρεν v Μίκιελ ντε Κρομ | 4-6,6-3,6-4 | |
| ITF Egypt F20 | 03/18 07:00 | 62 | Όγκουστ Χόλμγκρεν v Dinesh Chandra Suyal | 6-0,6-0 | |
| ITF Turkey F7 | 02/18 09:00 | 62 | Όγκουστ Χόλμγκρεν v Matvey Khomentovskiy | 4-6,5-7 | |
| ITF Turkey F6 | 02/12 07:00 | 62 | Όγκουστ Χόλμγκρεν v Andrew Ruppli | 4-6,3-6 | |
| ITF Turkey F6 | 02/11 09:30 | 62 | Ίσα Μαμετγκουλίγιεφ v Όγκουστ Χόλμγκρεν | 6-7,6-4,3-6 | |
| ITF Egypt F2 | 01/21 08:00 | 62 | Anis Ghorbel v Όγκουστ Χόλμγκρεν | 6-3,6-2 | |
| ITF Cyprus F2 | 11/25 08:00 | 27 | Αλεξάντρ Μίλερ v Όγκουστ Χόλμγκρεν | 6-1,6-2 | |
| ITF Cyprus F2 | 11/24 08:00 | 26 | Μπέντζαμιν Χάνεσταντ v Όγκουστ Χόλμγκρεν | 3-6,6-7 | |
| ITF Cyprus F2 | 11/23 07:30 | 25 | Όγκουστ Χόλμγκρεν v Omar Salman | Retired | |
| ITF Cyprus F2 Qual | 11/21 09:50 | 44 | Jamie Whiteford v Όγκουστ Χόλμγκρεν | Retired | |
| ITF Cyprus F2 Qual | 11/19 08:30 | 44 | Όγκουστ Χόλμγκρεν v Andreas Damianou | 6-3,6-3 | |
| ITF Greece F10 Qual | 11/14 11:35 | 62 | Maxim Tybar v Όγκουστ Χόλμγκρεν | 6-4,7-6 | |
| ITF Greece F10 Qual | 11/13 10:30 | 62 | Όγκουστ Χόλμγκρεν v Aljaz Jakob Kaplja | 6-3,6-2 | |
| ITF Greece F10 Qual | 11/12 07:00 | 62 | Όγκουστ Χόλμγκρεν v Κούζει Σεκιργκε | 6-3,6-3 | |
| ITF USA F7 Qual | 02/12 17:00 | 60 | Jorge Montero v Όγκουστ Χόλμγκρεν | 6-3,6-2 | |
| ITF Turkey F38 | 09/23 13:50 | 25 | Delf Gohlke v Όγκουστ Χόλμγκρεν | 6-0,6-3 | |
| ITF Turkey F38 | 09/19 13:00 | 62 | Εμμανουέλ Λουρία v Όγκουστ Χόλμγκρεν | 2-6,2-6 |
August Holmgren (born 22 April 1998) is a Danish professional tennis player.
Holmgren has a career high ATP singles ranking of World No. 292 achieved on 29 January 2024.
Holmgren represents Denmark at the Davis Cup, where he has a W/L record of 3–0.
Holmgren played five years of college tennis for the San Diego Toreros from 2017 to 2022, receiving numerous West Coast Conference (WCC) honors. He was the nation's top-ranked player after winning the Intercollegiate Tennis Association (ITA) National Fall Championships in late 2021, and he finished his college career as the 2022 NCAA Singles Championship runner-up to Ben Shelton.
Holmgren made his ATP debut at the 2021 San Diego Open after receiving a lucky loser spot into the main draw after third seed Félix Auger-Aliassime withdrew. There, he lost to former world No. 3 Grigor Dimitrov in straight sets.