National Boxing Association (NBA), was founded in Rhode Island by 13 U.S. commissions as a result of the ecumenical boom reached by the sport. The NBA changed its name in 1962 to the World Boxing Association (WBA), which is now presided by Gilberto Jesús Mendoza.
| No. | FIGHTER | DATE |
| 1 | FLASH ELORDE | 1963-02-16 |
| 2 | HIROSHI KOBAYASHI | 1967-12-14 |
| 3 | HIROSHI KOBAYASHI | 1968-10-05 |
| 4 | ALFREDO MARCANO | 1971-11-06 |
| 5 | BEN VILLAFLOR | 1972-04-25 |
| 6 | KUNIAKI SHIBATA | 1973-03-12 |
| 7 | SAMUEL SERRANO | 1976-10-16 |
| 8 | ROGER MAYWEATHER | 1983-01-19 |
| 9 | ROCKY LOCKRIDGE | 1984-06-12 |
| 10 | ALFREDO LAYNE | 1986-05-24 |
| 11 | BRIAN MITCHELL | 1987-07-31 |
| 12 | JOEY GAMACHE | 1991-06-28 |
| 13 | GENARO HERNANDEZ | 1991-11-22 |
| 14 | YONG-SOO CHOI | 1995-10-21 |
| 15 | JOEL CASAMAYOR | 2000-09-16 |
| 16 | ACELINO FREITAS | 2002-08-03 |
| 17 | VICENTE MOSQUERA | 2005-04-30 |
| 18 | JORGE SOLIS | 2010-02-06 |