| ITF W25 Guimaraes | 06/16 10:00 | 27 | 오브차렌코, 에카테리나 v Sieg, Madison | 5-7,1-6 | |
| ITF W25 Guimaraes | 06/15 10:00 | 26 | Sieg, Madison v Hule, Petra | 6-3,6-0 | |
| ITF W25 Guimaraes | 06/14 11:30 | 25 | Sieg, Madison v Zongyu Li | 6-2,6-2 | |
| ITF W25 Setubal | 06/11 10:00 | 29 | 하르토노, 아리안 v Sieg, Madison | 6-2,6-2 | |
| ITF W25 Setubal | 06/10 10:00 | 28 | 쿠바레바, 안나 v Sieg, Madison | 1-6,3-6 | |
| ITF W25 Setubal | 06/09 10:00 | 27 | Sieg, Madison v 다 실바 피크, 가브리엘라 | 6-4,6-1 | |
| ITF W25 Setubal | 06/08 10:30 | 26 | 보조비치, 알렉산드라 v Sieg, Madison | 5-7,1-6 | |
| ITF W25 Setubal | 06/07 09:00 | 25 | Morais, Matilde v Sieg, Madison | 2-6,1-6 | |
| ITF W25 Boca Raton | 04/11 15:15 | 54 | Veronika Miroshnichenko v Sieg, Madison | 6-3,6-2 | |
| ITF W60 Arcadia | 03/02 20:30 | 26 | [443] Sieg, Madison v 파리, 디안 [113] | 4-6,0-6 | |
| ITF W60 Arcadia | 03/02 00:10 | 25 | Annette Robertson v Sieg, Madison | 0-6,3-6 | |
| ITF W60 Rome GA | 01/31 14:55 | 54 | Sieg, Madison v 다베틸라, 사라 | 4-6,4-6 | |
| ITF W60 Rome GA | 01/30 14:55 | 54 | Sieg, Madison v Hui, Katherine | 6-4,7-5 | |
| ITF W25 Naples | 01/12 15:00 | 26 | [394] 아란고, 에밀리아나 v Sieg, Madison [461] | 6-4,6-0 | |
| ITF W25 Naples | 01/11 15:50 | 25 | [461] Sieg, Madison v 헤네만, 카이사 윌다 [283] | 6-1,6-0 | |
| ITF W25 Naples | 01/10 15:00 | 54 | [461] Sieg, Madison v 자마리파, 알루라 [328] | 7-6,6-2 | |
| ITF W25 Naples | 01/09 15:00 | 54 | Sieg, Madison v 수, 치에위 | 6-3,6-2 | |
| ITF W25 Malibu | 01/06 20:30 | 26 | Sieg, Madison v 창, 한나 | 3-6,2-6 | |
| ITF W25 Malibu | 01/03 23:30 | 25 | 코자로프, 카타리나 v Sieg, Madison | 2-6,6-3,11-13 | |
| ITF W25 Fort Worth | 10/22 18:10 | 28 | Sieg, Madison v Liv Hovde | 1-6,6-7 | |
| ITF W25 Fort Worth | 10/21 17:30 | 27 | [275] 창, 한나 v Sieg, Madison [492] | 4-6,4-6 | |
| ITF W25 Fort Worth | 10/20 16:55 | 26 | Sieg, Madison v 다베틸라, 사라 | 7-6,0-6,6-4 | |
| ITF W25 Fort Worth | 10/19 21:25 | 25 | Sieg, Madison v 틸부엘거, 잔트제 | 7-6,6-1 | |
| WTA San Diego | 10/08 21:50 | 14 | Sieg, Madison v 오소리오 세라노, 마리아 카밀라 | 1-6,2-6 | |
| ITF W25 Austin | 09/29 16:00 | 26 | Clervie Ngounoue v Sieg, Madison | 6-1,7-6 | |
| ITF W25 Austin | 09/28 18:25 | 25 | Sieg, Madison v 하리슨, 캐서린 | 1-6,6-4,7-6 | |
| ITF W60 Lexington | 08/03 14:00 | 25 | Sieg, Madison v 엔지, 테일러 | Retired | |
| ITF W25 Dallas | 07/28 14:50 | 26 | 안데르슨, 로빈 v Sieg, Madison | 6-1,6-4 | |
| ITF W25 Dallas | 07/27 17:00 | 25 | 브란트메이어, 리스 v Sieg, Madison | 6-3,3-6,4-6 | |
| ITF W25 Saskatoon | 07/24 16:50 | 29 | Victoria Mboko v Sieg, Madison | 6-2,6-0 |