Katie Taylor’s career is over. Claressa Shields’ is not. That finally gives women’s boxing a complete résumé on one side of its biggest argument, and a chance to take opinion out of it.
Taylor closed out Saturday at Croke Park, beating previously unbeaten Flora Pili by unanimous decision at 100-90, 100-90 and 98-91 in front of more than 80,000 people. She added the vacant WBC light-welterweight belt to her WBA, WBO and IBF titles and retired 26-1 as undisputed super lightweight champion.
Shields fought last month, stopping Kaye Scott to move to 19-0. She is a five-division world champion and has been undisputed in three of them.
So: whose résumé is actually better?
How This Was Scored
One disclaimer before anything else. No formula for this can be truly objective, because choosing what to weight is itself a judgment. What can be done is fix the rules before looking at the answer, use only measurable boxing accomplishments, and leave out everything that isn’t.
Not scored: popularity, ticket sales, followers, purses, nationality, promotional reach, cultural impact, or who would beat whom. Those are real legacy arguments. They are not measurable.
Category |
Points |
|---|---|
Amateur excellence |
20 |
Professional championship breadth |
25 |
Elite opposition defeated |
25 |
Professional dominance |
15 |
Professional body of work |
15 |
Total |
100 |
The full rules, category by category:
Amateur excellence. Five points per Olympic gold, capped at 10. Two points per senior World Championship gold, capped at 10. Regional titles excluded, because European and Pan-American structures are not directly comparable.
Championship breadth. Two points per division in which a fighter won a major WBA, WBC, IBF or WBO title, capped at 10. Five points per division in which she became four-belt undisputed, capped at 15. Becoming undisputed twice in the same division counts once. This measures divisions conquered, not belts accumulated.
Elite opposition. One and a half points per win over a current or former holder of a major world championship, capped at 25. Interim and secondary belts do not qualify. Repeat wins count, because beating a great fighter three times is not the same as beating her once.
Dominance. Win percentage worth up to 10 points, plus five points if the fighter has ultimately defeated every professional opponent she has faced.
Body of work. Four tenths of a point per professional win, capped at 10, plus 0.625 points per year as a major world champion, capped at five.
The Amateur Careers
Taylor won Olympic gold in London in 2012 and five senior World Championships, in 2006, 2008, 2010, 2012 and 2014. She also won six European titles, which this formula does not count.
Shields won Olympic gold twice, in London and again in Rio in 2016, becoming the first American boxer of either sex to go back to back. She won two World Championships, in 2014 and 2016, and finished 77-1 as an amateur. The single defeat came against Savannah Marshall.
Taylor |
Shields |
|
|---|---|---|
Olympic golds |
1 |
2 |
World Championship golds |
5 |
2 |
Score |
15 |
14 |
Shields has the better Olympic record. Taylor’s five world titles outweigh it by a single point.
Shields Has a Huge Advantage in Championship Breadth
Taylor won major world titles in two divisions, lightweight and super lightweight, and became undisputed in both.
One thing needs clearing up here. Taylor was called a three-time undisputed champion on Saturday, and that is accurate. It refers to three separate undisputed reigns: lightweight in 2019, super lightweight in 2023, and super lightweight again on Saturday. It does not mean three divisions. This formula counts divisions, so it scores as two.
Shields won major titles in five divisions: super middleweight, middleweight, junior middleweight, light heavyweight and heavyweight. She became undisputed in three of them, at middleweight, junior middleweight and heavyweight, and in doing so became the first boxer of either sex in the four-belt era to be undisputed in three weight classes.
Taylor |
Shields |
|
|---|---|---|
Divisions with a major title |
2 |
5 |
Undisputed divisions |
2 |
3 |
Score |
14 |
25 |
This is the widest gap in the exercise, and it is where Shields wins the argument.
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Taylor Has Faced the Deeper Professional Opposition
This is where the gap closes, and it is the most interesting category in the exercise.
Taylor’s wins over current or former major world champions include Anahi Esther Sanchez, Jessica McCaskill, Victoria Bustos, Cindy Serrano, Eva Wahlstrom, Rose Volante, Delfine Persoon twice, Christina Linardatou, Natasha Jonas, Jennifer Han, Amanda Serrano three times and Chantelle Cameron. Roughly 15 qualifying wins.
Shields’ qualifying wins include Franchón Crews-Dezurn twice, Nikki Adler, Hanna Gabriels, Christina Hammer, Ivana Habazin, Marie-Eve Dicaire, Savannah Marshall, Vanessa Lepage-Joanisse and Lani Daniels. Roughly 10.
Taylor |
Shields |
|
|---|---|---|
Wins over major champions |
15 |
10 |
Score |
22.5 |
15 |
The Serrano trilogy alone is worth 4.5 points to Taylor. The Marshall win carries weight for Shields beyond the scoring, since Marshall handed her the only loss of her amateur career.
Dominance and Body of Work
Taylor finished 26-1, a 96.3 percent win rate, worth 9.63 points. She also gets the five-point bonus, because her only professional loss was to Chantelle Cameron in May 2023 and she beat Cameron in the rematch six months later. She has therefore ultimately defeated every professional opponent she faced.
Shields is 19-0. A perfect record and the same bonus by default.
On body of work, Taylor’s 26 wins clear the 10-point cap. Shields’ 19 wins score 7.6. Both first won major world titles in 2017, so the longevity component is identical.
Taylor |
Shields |
|
|---|---|---|
Dominance |
14.63 |
15 |
Body of work |
15 |
12.6 |
The Final Score
Category |
Katie Taylor |
Claressa Shields |
|---|---|---|
Amateur excellence |
15 |
14 |
Championship breadth |
14 |
25 |
Elite opposition |
22.5 |
15 |
Professional dominance |
14.63 |
15 |
Professional body of work |
15 |
12.6 |
Total |
81.13 |
81.60 |
Claressa Shields, by 0.47 points.
That is not a verdict. It is a coin landing on its edge and staying there.
And it needs one honest caveat, because the margin is smaller than the precision of the thing that produced it. The opposition counts are approximate. If Taylor turns out to have 16 qualifying wins rather than 15, she wins the exercise by 1.03. If Shields has 11 rather than 10, she wins by 1.97. A single name on either list is worth three times the final margin.
What the formula does establish is where each case actually lives. Shields owns the breadth: five divisions, three undisputed, two Olympic golds, an achievement no boxer of either sex had managed before. Taylor owns the depth: a professional career spent almost entirely against champions, three wins over Amanda Serrano, and seven more victories than Shields currently has.
Those are different accomplishments. The formula weighted them and they came out level.
One last thing. This is a finished résumé measured against an unfinished one. Shields is 31, back at middleweight and talking about Lauren Price and further unification. Another five or six elite wins would move her out of range. She also has time to lose.
For now, an attempt to remove opinion from the argument produces roughly what the argument itself has always suggested. There is almost nothing between them.
