Super Flyweight Explained: The 115-Pound Division and Its Scorecards
Learn super flyweight’s 115-pound limit, its junior bantamweight name, weigh-in stakes and what Estrada–González II’s split decision means.
Super flyweight is professional boxing’s 115-pound division—approximately 52.16 kg—also called junior bantamweight. It sits between flyweight and bantamweight. The WBC uses super flyweight, while the WBO lists the same weight limit under Jr. Bantamweight. “Super” here identifies a weight class, not a special championship status. (WBC division guide, WBO regulations, Section 3)
The weight label tells you the limit. It does not change how professional rounds are scored.
Where super flyweight fits
The neighboring professional divisions have these maximum weights:
- Flyweight: 112 lb, approximately 50.80 kg.
- Super flyweight / junior bantamweight: 115 lb, approximately 52.16 kg.
- Bantamweight: 118 lb, approximately 53.52 kg.
There are three pounds between each limit. These are ceilings, not instructions that every boxer must weigh exactly that amount. A reading of 115.0 lb meets the super flyweight ceiling; 115.5 lb exceeds it. The WBO’s weight-category table confirms all three limits. (WBO regulations, Section 3)
For the wider sequence, see boxing weight divisions in order.
Why the weigh-in matters to the result
Winning a bout and winning a belt are separate questions when someone misses weight.
For example, the WBO’s 2021 championship regulations, linked from its regulations page, allow a boxer who misses weight at the official weigh-in two additional hours to make it. A champion who still fails to make the prescribed weight loses the title at the scales. A challenger who makes weight must still win the contest to acquire it. If the overweight former champion wins, the championship remains vacant.
If the champion makes weight but the challenger does not, the overweight challenger cannot win the championship. If that challenger wins the fight, the title becomes vacant. Those are WBO provisions, not a universal description of every sanctioning body’s procedure. Check the applicable commission rules and title conditions for the particular fight. (WBO regulations, Section 4)
How a super flyweight fight is scored
The Association of Boxing Commissions’ Unified Rules specify three judges and the 10-point must system. Its judge manual describes a routine winning round as 10–9 and a one-knockdown round as generally 10–8, while requiring the judge to assess the entire round. (ABC Unified Rules, ABC judge manual)
The manual identifies clean and effective punching, effective aggressiveness, ring generalship or control, and defense as the four scoring factors. It also says punches are not all equal: both their number and effect matter, with no mathematical formula equating hard punches and lighter ones. Punch totals can inform analysis, but they are not a substitute for judging each round. (ABC judge manual)
A real example: Estrada–González II
Juan Francisco Estrada defeated Román “Chocolatito” González by split decision in their March 13, 2021, junior bantamweight unification bout in Dallas. The reported official totals were:
| Judge | Score | Judge’s winner |
|---|---|---|
| Carlos Sucre | 117–111 | Estrada |
| David Sutherland | 115–113 | Estrada |
| Jesse Reyes | 115–113 | González |
Sources: ESPN’s report naming the judges and the fight report.
Two judges favored Estrada and one favored González: that makes the result a split decision. The judges’ points are not pooled to determine the winner.
For a 12-round card made entirely of 10–9 rounds, 115–113 means seven rounds to five, while 117–111 means nine rounds to three. That explains the totals under that assumption; totals alone do not identify which rounds a judge awarded. Changing one 10–9 round from one boxer to the other moves the final margin by two points.
The wider card also drew official scrutiny. On March 14, 2021, the WBA announced Sucre’s temporary suspension pending an evaluation of his performance. That documented response should be distinguished from a fan’s personal disagreement with the decision. (WBA announcement)
When reviewing this fight, keep three things separate: Estrada’s official split-decision victory, each judge’s individual score, and your own round-by-round assessment. Use the 10-point must scoring guide to build that assessment before debating the verdict.