The junior flyweight division is ruled by one man, who if he was of larger size and stature would be renowned by fight fans as being one of the best active boxers in any weight class. A talented group of contenders await a chance at the top dog.

Junior flyweight division rankings last updated June 2009.

1. Ivan Calderon – The former WBO minimum weight champion, making 11 defenses of his title at that weight is the current WBO junior flyweight champion and has already made 4 defenses there, including two wins over Hugo Cazares. The slick boxing Calderon is undefeated at 32-0-1 but only has 6 knockouts to his credit.
2. Edgar Sosa – Sosa has made 9 defenses of his WBC junior flyweight title, and holds wins over Sonny Boy Jaro, Juanito Rubillar and Brian Viloria. He’s 36-5, but he hasn’t lost in nearly 6 years.
3. Brian Viloria – “The Hawaiian Punch” Brian Viloria was a rapid rising prospect at minimum weight after his time in the Olympics. He stumbled in his ascent to the top of the boxing world, but just won the IBF junior flyweight title by besting Ulises Solis.
4. Ulises Solis – Solis successfully defended his IBF junior flyweight strap 9 times before facing a more focused Viloria and getting stopped in the 11th round.
5. Omar Nino Romero – Romero was able to earn a decision over Rubillar in a rematch of their first fight which Rubillar one, despite a bad cut caused by a head butt that sent the fight to the scorecards. Romero holds a win against Viloria and fought him to a draw in their second fight only to see the decision changed to a no contest due to a failed post fight drug test.
6. Giovanni Segura – The first loss of Segura’s career came a year ago against Cesar Canchila. However he avenged the decision by stopping Canchila in the fourth round in March of 2009. Next up is a fight for the WBA strap against Sonny Boy Jaro.
7. Juanito Rubillar – Rubillar was being thoroughly out boxed in the rematch of his fight against Omar Nino Romero before the fight was sent to the cards for a cut caused by head butt. That makes two losses in his last two fights, against Romero and Edgar Sosa.
8. Cesar Canchila – Canchila stumbled in the second fight against Canchila, in what amounted to the first legitimate loss of his career, since the other one was caused by an injury stoppage. Outside of the Segura fights however, his competition has been limited.
9. Brahim Asloum – The former WBA junior flyweight champion has only fought once in the last 18 months, against a mediocre and unknown opponent.
10. Sonny Boy Jaro – Jaro is getting a shot against Giovanni Segura this summer for the WBA strap that used to belong to Brahim Asloum. In his last fight against a decent opponent, Edgar Sosa out pointed him handily despite being knocked down once in the fight.

More Boxing Weight Class Rankings

• <105 lbs – Boxing Minimum Weight Division Rankings
• 108-112 lbs – Boxing Flyweight Division Rankings

Written by: Jake Emen