Fighters that retired undefeated

Yeah, but I was mainly looking at guys with over twenty victories who've established themselves as threats in their division and would be ranked in the top 100 or top 50 fighters in the world today. Personally, I was struck by two things. 1) Look how close Roman Gonzalez is to Floyd's streak. 2)Those undefeated streaks rarely lasted into the fifties even in the old days.

Wilde 103
JCC 89
Benvenuti 65
Pep 62
Olivares 61
Zarate 52
Pascual Perez 51
Jones Jr 49+DQ
Marciano 49
Larry Holmes 48
Eder Jofre 47
Marcel Cerdan 47
Toney 44
Barrera 43
Erik Morales 41
Trinidad 40
Gene Tunney 40
Tyson 37
Freddie Steele 37
Pryor 36
SRR 35
Hearns 32
Wilfredo Gomez 32
Duran 31
Ali 31
Michael Spinks 31
Oscar DLH 31
Ray Leonard 27
Carlos Ortiz 26
Hagler 25
Fighting Harada 25
Joe Louis 24
Harold Johnson 24
Gushiken 23
Jimmy McLarnin 21
Sal Sanchez 18
Don Fullmer 18
Vicente Saldivar 16
Charles 15
Whitaker 15
LaMotta 14
Griffith 13
Terry Norris 12
Pacquiao 11
Barney Ross 10
Bob Foster 9
Monzon 7
Napoles 7
Arguello 3
Saddler 1
Hopkins 0
JMM 0
Canto 0
Armstrong 0