Girls on fire
Episode > Episodes 5–7: Pertandingan rival 60 menit

Dalam pertandingan rival, ke-24 peserta dibagi menjadi 12 tim satu lawan satu dimana masing-masing akan bernyanyi duet bersama.
Para juri memilih Lee Arumsoul, Kang Yunjeong, dan Khan Amina sebagai tiga MVP dari sembilan pemenang babak kedua. Mereka diberi kesempatan untuk memilih lawannya terlebih dahulu. Pemenang putaran kedua lainnya dapat memilih lawan mereka setelahnya, diikuti oleh peserta yang tersisa dalam urutan acak.
| Ep> .Ep. | Pertandingan | Name | Lagu | Artis | Skor Juri | Hasil | Detail suara> Kinky | Detail suara> Eunji | Detail suara> SWJA | Detail suara> Yoon Jong Shin | Detail suara> Gaeko | Detail suara> Young K |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 5 | 1 | Kim Yebin | "Villain" | Stella Jang | 552 (Kalah) | Elimination candidate | 91 | 89 | 92 | 96 | 90 | 94 |
| 5 | 1 | Lee Sooyoung | "Villain" | Stella Jang | 563 (Menang) | Lolos | 92 | 93 | 94 | 98 | 91 | 95 |
| 5 | 2 | Kang Yunjeong | "Gods" | League of Legends & NewJeans | 577 (Kalah) | Elimination candidate | 95 | 99 | 95 | 95 | 97 | 96 |
| 5 | 2 | Hwang Seyoung | "Gods" | League of Legends & NewJeans | 580 (Menang) | Lolos | 96 | 98 | 94 | 97 | 97 | 98 |
| 5 | 3 | Choi Aim | "Butterfly Effect" | Shin Seung Hun | 556 (Menang) | Lolos | 88 | 91 | 90 | 95 | 98 | 94 |
| 5 | 3 | Park Seojeong | "Butterfly Effect" | Shin Seung Hun | 552 (Kalah) | Elimination candidate | 86 | 89 | 91 | 94 | 97 | 95 |
| 6 | 4 | Khan Amina | "Like an Indian Doll" | Nami | 514 (Kalah) | Elimination candidate | 84 | 88 | 82 | 91 | 85 | 84 |
| 6 | 4 | Yang Irae | "Like an Indian Doll" | Nami | 538 (Menang) | Lolos | 87 | 91 | 89 | 93 | 89 | 89 |
| 6 | 5 | Yoon Minseo | "Love Wins All" | IU | 541 (Kalah) | Elimination candidate | 87 | 89 | 89 | 96 | 93 | 87 |
| 6 | 5 | Kim Kyuri | "Love Wins All" | IU | 548 (Menang) | Lolos | 90 | 90 | 91 | 95 | 94 | 88 |
| 6 | 6 | Cho Yein | "Make Up" | Sam Kim & Crush | 530 (Menang) | Lolos | 84 | 92 | 90 | 94 | 83 | 87 |
| 6 | 6 | Janet Suhh | "Make Up" | Sam Kim & Crush | 490 (Kalah) | Elimination candidate | 80 | 79 | 80 | 92 | 79 | 80 |
| 6 | 7 | Lee Arumsoul | "Sixth Sense" | Brown Eyed Girls | 563 (Kalah) | Elimination candidate | 89 | 91 | 96 | 98 | 95 | 94 |
| 6 | 7 | Lee Nayoung | "Sixth Sense" | Brown Eyed Girls | 570 (Menang) | Lolos | 93 | 92 | 97 | 97 | 95 | 96 |
| 6 | 8 | Kim Hana | "Flower Way" | Kim Sejeong | 519 (Menang) | Lolos | 91 | 85 | 81 | 90 | 88 | 84 |
| 6 | 8 | Chong Jeena | "Flower Way" | Kim Sejeong | 509 (Kalah) | Elimination candidate | 86 | 82 | 80 | 88 | 87 | 86 |
| 7 | 9 | Son Yeongseo | "Love Lee" | AKMU | 553 (Kalah) | Elimination candidate | 90 | 94 | 93 | 90 | 96 | 90 |
| 7 | 9 | Jung Yuri | "Love Lee" | AKMU | 561 (Menang) | Lolos | 91 | 95 | 94 | 92 | 97 | 92 |
| 7 | 10 | nov | "오래된 친구" | Light & Salt | 550 (Menang) | Lolos | 89 | 89 | 95 | 94 | 90 | 93 |
| 7 | 10 | Lim Okyeon | "오래된 친구" | Light & Salt | 545 (Kalah) | Elimination candidate | 91 | 84 | 92 | 96 | 88 | 94 |
| 7 | 11 | RETA | "Different" | WINNER | 516 (Menang) | Lolos | 80 | 84 | 90 | 91 | 87 | 84 |
| 7 | 11 | Ji Yooeun | "Different" | WINNER | 513 (Kalah) | Elimination candidate | 83 | 86 | 88 | 89 | 84 | 83 |
| 7 | 12 | Sohn Yujin | "Pianissimo" | Cherryfilter | 527 (Kalah) | Elimination candidate |  |  |  |  |  |  |
| 7 | 12 | Kang Sumin | "Pianissimo" | Cherryfilter | 539 (Menang) | Lolos |  |  |  |  |  |  |
Dalam pertandingan rival mendadak yang berdurasi 60 menit, juri membagi 12 kandidat eliminasi menjadi empat tim yang terdiri dari tiga orang. Mereka juga menugaskan masing-masing tim sebuah lagu untuk dibawakan. Mereka diberi batas waktu 60 menit untuk mempersiapkan pertunjukan. Satu peserta di setiap tim akan tersingkir.
Setelah semua tim selesai tampil, para juri mengumumkan nama empat peserta yang tersingkir dan sebanyak 20 peserta melaju ke babak keempat yang merupakan babak playoff pertama.
| Ep>  | Pertandingan | Team member | Lagu | Artis | Hasil |
| --- | --- | --- | --- | --- | --- |
| 7 | 1 | Chong Jeena | "Uphill Road" | Yoon Jong Shin & Jung In | Eliminasi |
| 7 | 1 | Kang Yunjeong | "Uphill Road" | Yoon Jong Shin & Jung In | Pilihan juri |
| 7 | 1 | Son Yeongseo | "Uphill Road" | Yoon Jong Shin & Jung In | Pilihan juri |
| 7 | 2 | Janet Suhh | "Don't Forget Me" | Baek Ji Young | Eliminasi |
| 7 | 2 | Park Seojeong | "Don't Forget Me" | Baek Ji Young | Pilihan juri |
| 7 | 2 | Kim Yebin | "Don't Forget Me" | Baek Ji Young | Pilihan juri |
| 7 | 3 | Ji Yooeun | "Every Day, Every Moment" | Paul Kim | Eliminasi |
| 7 | 3 | Khan Amina | "Every Day, Every Moment" | Paul Kim | Pilihan juri |
| 7 | 3 | Lim Okyeon | "Every Day, Every Moment" | Paul Kim | Pilihan juri |
| 7 | 4 | Sohn Yujin | "On the Street" | Sung Si Kyung | Eliminasi |
| 7 | 4 | Lee Arumsoul | "On the Street" | Sung Si Kyung | Pilihan juri |
| 7 | 4 | Yoon Minseo | "On the Street" | Sung Si Kyung | Pilihan juri |