Boxing Heavyweight Defense Comparison (One Reign)
Heavyweight consecutive defenses one reign, from Louis 25 down to Jeffries 7. BoxRec and Hall of Fame stats with linked converter tool. See all 12 listed here.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Joe Louis Top row here. BoxRec lists 26 counting the win. | 25 defenses | NYSAC NBA reign 1937-49, 11 plus years | Britannica Joe Louis + IBHOF + Guinness most consecutive heavyweight defenses 25 |
| Larry Holmes Twenty with unsanctioned Frazier. | 19 defenses | WBC IBF reign 1978-85 | BoxRec most consecutive heavyweight defenses: Holmes 19 |
| Wladimir Klitschko Second longest modern unified reign. | 18 defenses | WBA IBF WBO 2006-15 unified | BoxRec most consecutive heavyweight defenses: Wladimir 18 |
| Tommy Burns Still counts lineal. | 13 defenses | Lineal 1906-08 pre-1921 era | BoxRec most consecutive heavyweight defenses: Burns 13 |
| Muhammad Ali second reign Nineteen total across reigns. | 10 defenses | WBA WBC 1974-78 Foreman to Spinks | BoxRec most consecutive heavyweight defenses: Ali second reign 10 |
| Deontay Wilder Tied Ali second reign. | 10 defenses | WBC 2015-20 | BoxRec most consecutive heavyweight defenses: Wilder 10 |
| Mike Tyson Youngest champ cluster. | 9 defenses | WBA WBC IBF 1986-90 | BoxRec most consecutive heavyweight defenses: Tyson 9 |
| Joe Frazier Tied nine tier. | 9 defenses | NYSAC WBA WBC 1968-73 | BoxRec most consecutive heavyweight defenses: Frazier 9 |
| Lennox Lewis Not nineteen. Single reign nine. | 9 defenses | WBA WBC IBF 1997-2001 | BoxRec most consecutive heavyweight defenses: Lewis 9 |
| Vitali Klitschko Completes nine cluster. | 9 defenses | WBC 2008-12 | World heavyweight records compilation BoxRec mirror: Vitali 9 |
| Ezzard Charles Cincinnati Cobra. | 8 defenses | NBA NYSAC 1950-51 | BoxRec most consecutive heavyweight defenses: Charles 8 |
| James Jeffries Lowest row here. Boilermaker. | 7 defenses | Lineal 1899-1905 | BoxRec most consecutive heavyweight defenses: Jeffries 7 |
About this converter
Consecutive heavyweight defenses in one reign run 7 to 25 by standard count. Louis leads with 25 from 1937 to 49, Holmes follows at 19, Wladimir Klitschko at 18, Burns at 13, Ali second reign and Wilder tied at 10 each, Tyson, Frazier, Lewis and Vitali tied at 9 each, Charles at 8 and Jeffries at 7. Marciano, Johnson, Joshua and active Usyk wait at 6 past the cut with Dempsey at 5. Ali totals 19 across reigns at 9 plus 10. BoxRec lists Louis at 26 by counting the Braddock win as a defense.
How to use it
Pick two champions and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try 1 Louis against Tyson to see the two point seven to one gap. Single reign scope rides every row, totals in notes.
Holmes reaches 20 with the unsanctioned 1983 Frazier defense that the IBF never blessed. Usyk sat at 6 active through June 2026 and keeps moving. Cruiserweight and lower divisions run separate tables and stay out. Lineal pre-1921 reigns count the same as sanctioned belts here.
FAQ
Who has the most heavyweight defenses?
Joe Louis with 25 consecutive in one reign. BoxRec lists 26 counting the win.
How many defenses did Ali have?
Ten in his second reign. Nineteen total across three reigns.
How many did Tyson defend?
Nine consecutive from 1986 to 1990.
Is Usyk still adding?
Yes. Six consecutive through June 2026 and active.
Sources
- BoxRec Most Consecutive World Heavyweight Title Defenses (Louis 25 through Jeffries 7, Usyk 6)
- Britannica Joe Louis + IBHOF Louis + Guinness most consecutive defenses 25
- BoxingScene CompuBox most consecutive defenses (Holmes 19, 20 with Frazier note)
Last verified: 2026-10-01 · 12 entries
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