| Challenger Gwangju | 04/14 04:45 | 14 | 홀름그렌, 오거스트 v 이, 덕희 | 5-7,5-7 | |
| Challenger Busan | 04/07 01:00 | 14 | 홀름그렌, 오거스트 v 모치즈키, 유키 | 4-6,2-6 | |
| ITF M25 Calabasas | 03/21 19:40 | 26 | 홀름그렌, 오거스트 v Sell, Karue | 4-6,3-6 | |
| ITF M25 Calabasas | 03/20 20:30 | 25 | 홀름그렌, 오거스트 v 한즐릭, 캐쉬 | 7-6,7-5 | |
| ITF M25 Bakersfield | 03/16 17:00 | 26 | 후드, 에밀 v 홀름그렌, 오거스트 | CANC | |
| ITF M25 Bakersfield | 03/15 17:55 | 27 | [489] 에스코베도, 에르네스토 v 홀름그렌, 오거스트 [278] | 6-3,7-5 | |
| ITF M25 Bakersfield | 03/14 20:00 | 26 | 클린트차로브, 알렉산더 v 홀름그렌, 오거스트 | 4-6,4-6 | |
| ITF M25 Bakersfield | 03/14 01:00 | 25 | 네스테로프, 알렉세이 v 홀름그렌, 오거스트 | 4-6,4-6 | |
| Tenerife, Spain | 02/29 10:00 | 26 | [227] Neumayer, Lukas v 홀름그렌, 오거스트 [292] | 6-3,6-7,6-4 | |
| Tenerife, Spain | 02/27 13:50 | 25 | [292] 홀름그렌, 오거스트 v 이바시카, 일리아 [186] | 6-3,7-5 | |
| Tenerife, Spain | 02/26 10:00 | 19 | [246] 크루에겔, 미트첼 v 홀름그렌, 오거스트 [297] | 5-7,2-6 | |
| Challenger Tenerife Qual | 02/25 10:00 | 14 | [400] 타베르너, 카를로스 v 홀름그렌, 오거스트 [297] | 2-6,7-6,4-6 |
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.