Sean Clancy Jr., detto «The One», è un lottatore di MMA. Il suo record nelle arti marziali miste è 9–0 (vittorie–sconfitte–pareggi).
| Esito | Avversario | Metodo | Evento | Data |
|---|---|---|---|---|
| Win | Gary Balletto | TKO | Dana White's Contender Series: Season 10, Week 3 | August 25, 2026 |
| Win | Melvin van Suijdam | TKO | Cage Warriors 199 | December 6, 2025 |
| Win | Italo Gomes | Submission (Rear Naked Choke) | Cage Warriors 187 | April 19, 2025 |
| Win | Andrey Augusto | TKO | Cage Warriors 181 | November 23, 2024 |
| Win | Rafael Aronov | Submission (Rear Naked Choke) | Cage Warriors 176 | September 7, 2024 |
| Win | Lucas Rodrigues | TKO (Ground and Pound) | Cage Warriors 171 | April 20, 2024 |
| Win | Milton Afonso Cabral | Submission (Rear Naked Choke) | Cage Warriors 161 | October 14, 2023 |
| Win | Jack Comby | TKO (Punches) | Unity Fighting Championship 4 | August 5, 2023 |
| Win | Ben Disson | TKO (Strikes) | Budo Fighting Championship 57 | April 29, 2023 |
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