Heavyweight rankings, May 1978

Computed retroactively from today’s data and formula; not the lists as published then.

Boxerbook rating at the end of May 1978: 1. Muhammad Ali, 2. Ken Norton, 3. Gerrie Coetzee.

Boxerbook rating

9 boxers met the list thresholds at the end of the month. μ ± RD; arrows show the move since the end of April 1978. How it works

2398 ± 111–

2134 ± 113–

2011 ± 151–

1932 ± 112–

1927 ± 143–

1911 ± 107–

1802 ± 113–

1422 ± 130–

1318 ± 91▲1

Boxerbook’s archive of the publishers’ lists starts in 2026, so there are none for May 1978.