Madison Sieg
2021
| US OPEN JUNIOR | [10] | 2R |
| J1 COLLEGEPARK | [2] | 1R |
| JAMILAN-2 | [4] | 1R |
| WIMBLEDON JUNIOR | [9] | 1R |
| J1 ROEHAMPTON | [9] | 2R |
| ROLAND GARROS JUNIOR | [13] | 3R |
| JB1 SANDIEGO | [1] | Semi |
| J1 BARRANQUILLA | [1] | Quarter |
| J1 PORTOALEGRE | [3] | Quarter |
| J1 LAMBARE | [3] | 2R |
| J1 SALINAS | [3] | Final |
2020
| JAPLANTATION-2 | [11] | 2R |
| J1 PLOVDIV-2 | [4] | 1R |
| ROLAND GARROS JUNIOR | 1R | |
| J5 SZEKESFEHERVAR-2 | [1] | Win |
| J1 PANCEVO-3 | [2] | Semi |
| J2 NOVISAD-2 | [1] | Final |
| J2 SANTODOMINGO-3 | [2] | 2R |
| J1 PORTOALEGRE-2 | [5] | 2R |
| J1 LAMBARE-2 | [2] | Quarter |
Nation
USA
Age
22 years old (born in 2003)
World Ranking
WTA Ranking　440th
Year-end Junior World Ranking
- Year-end 2021 24th
- Year-end 2020 41th
- Year-end 2019 82th
- Year-end 2018 217th
Match Details
2021 US OPEN JUNIOR
| L | 2R | Sofia Costoulas | 3-6 6-3 3-6 |
2021 J1 COLLEGEPARK
| L | 1R | Mia Kupres | 1-6 2-6 |
2021 JAMILAN-2
| L | 1R | Alevtina Ibragimova | 6-3 5-7 6-7 |
2021 WIMBLEDON JUNIOR
| L | 1R | Ranah Akua Stoiber | 7-5 4-6 2-6 |
2021 J1 ROEHAMPTON
| W | 1R | Tijana Sretenovic | 6-3 6-2 |
| L | 2R | Alicia Dudeney | 3-6 3-6 |
2021 ROLAND GARROS JUNIOR
| W | 1R | Laura Hietaranta | 3-6 6-1 6-2 |
| W | 2R | Annabelle Xu | 6-3 4-6 6-3 |
| L | 3R | Polina Kudermetova | 6-3 1-6 2-6 |
2021 JB1 SANDIEGO
| W | 2R | Gracie Epps | 6-2 6-1 |
| W | 3R | Kimmi Hance | 7-6 4-6 6-0 |
| W | QF | Bojana Pozder | 6-1 6-4 |
| L | SF | Liv Hovde | 0-6 3-6 |
2021 J1 BARRANQUILLA
| W | 1R | Luciana Moyano | 6-2 6-3 |
| W | 2R | Martyna Ostrzygalo | 6-3 6-1 |
| L | QF | Johanne Christine Svendsen | 6-4 3-6 2-6 |
2021 J1 PORTOALEGRE
| W | 1R | Kira Pavlova | 7-6 6-1 |
| W | 2R | Bianca Behulova | 6-3 2-6 6-1 |
| L | QF | Solana Sierra | 6-4 4-6 2-6 |
2021 J1 LAMBARE
| W | 1R | Fiorella Duran Montano | 6-2 7-5 |
| L | 2R | Mei Hasegawa | 4-6 4-6 |
2021 J1 SALINAS
| W | 1R | Camilla Bossi | 6-4 6-3 |
| W | 2R | Maria Olivia Castedo | 6-1 6-0 |
| W | QF | Laia Petretic | 6-4 6-2 |
| W | SF | Valencia Xu | 6-3 4-6 6-1 |
| L | F | Natalia Szabanin | 2-6 1-6 |
2020 JAPLANTATION-2
| L | 2R | Fiona Crawley | 5-7 6-3 1-6 |
2020 J1 PLOVDIV-2
| L | 1R | Amelia Bissett | 7-5 5-7 3-6 |
2020 ROLAND GARROS JUNIOR
| L | 1R | Eva Lys | 4-6 1-6 |
2020 J5 SZEKESFEHERVAR-2
| W | 2R | Dora Kurdi | 6-0 6-0 |
| W | QF | Anna Kantor | 6-0 1-0 |
| W | SF | Ioana Zvonaru | 6-1 6-3 |
| W | F | Elizabeth Coleman | 6-4 6-4 |
2020 J1 PANCEVO-3
| W | 1R | Tea Zivic | 6-1 6-0 |
| W | 2R | Anastasiia Gureva | 6-1 6-4 |
| W | QF | Natalija Senic | 6-3 5-7 6-1 |
| L | SF | Petra Marcinko | 5-7 3-6 |
2020 J2 NOVISAD-2
| W | 1R | Melis Ayda Uyar | 3-6 6-4 6-1 |
| W | 2R | Darja Suvirdjonkova | 6-0 6-1 |
| W | QF | Natalija Senic | 6-4 6-3 |
| W | SF | Katerina Dimitrova | 1-6 6-2 6-4 |
| L | F | Elizabeth Coleman | 3-6 6-3 4-6 |
2020 J2 SANTODOMINGO-3
| W | 1R | Yanire Marte | 6-0 6-0 |
| L | 2R | Nicole Rivkin | 4-6 4-6 |
2020 J1 PORTOALEGRE-2
| L | 2R | Clarine Lerby | 6-4 4-6 1-6 |
2020 J1 LAMBARE-2
| W | 2R | Sophie Luescher | 6-3 6-3 |
| W | 3R | Eleonora Alvisi | 7-6 6-1 |
| L | QF | Oceane Babel | 5-7 7-5 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10179, Number of registered players: 6,443, Number of registered results: 375,166