Floyd Mayweather Jr. had an exceptional professional boxing career, retiring with an undefeated record of 50 wins and 0 losses. Here's a chronological list of his professional fights:

1. Oct 11, 1996: Roberto Apodaca - Win (TKO)
2. Nov 30, 1996: Reggie Sanders - Win (UD)
3. Jan 18, 1997: Jerry Cooper - Win (TKO)
4. Feb 01, 1997: Edgar Ayala - Win (TKO)
5. Mar 12, 1997: Kino Rodriguez - Win (TKO)
6. Apr 12, 1997: Bobby Giepert - Win (TKO)
7. May 09, 1997: Tony Duran - Win (TKO)
8. Jun 14, 1997: Larry O'Shields - Win (UD)
9. Jul 12, 1997: Jesus Chavez - Win (TKO)
10. Sep 06, 1997: Louie Leija - Win (TKO)
11. Oct 14, 1997: Felipe Garcia - Win (KO)
12. Nov 20, 1997: Angelo Nuñez - Win (TKO)
13. Jan 09, 1998: Hector Arroyo - Win (TKO)
14. Feb 28, 1998: Sam Girard - Win (KO)
15. Mar 23, 1998: Miguel Melo - Win (TKO)
16. Apr 18, 1998: Gustavo Cuello - Win (UD)
17. Jun 14, 1998: Tony Pep - Win (UD)
18. Oct 03, 1998: Genaro Hernández - Win (RTD)
19. Dec 19, 1998: Angel Manfredy - Win (TKO)
20. Feb 17, 1999: Carlos Rios - Win (UD)
21. May 22, 1999: Justin Juuko - Win (KO)
22. Sep 11, 1999: Carlos Gerena - Win (RTD)
23. Mar 18, 2000: Gregorio Vargas - Win (UD)
24. Oct 21, 2000: Emanuel Augustus - Win (TKO)
25. Jan 20, 2001: Diego Corrales - Win (TKO)
26. May 26, 2001: Carlos Hernández - Win (UD)
27. Nov 10, 2001: Jesus Chavez - Win (RTD)
28. Apr 20, 2002: José Luis Castillo - Win (UD)
29. Dec 07, 2002: José Luis Castillo - Win (UD)
30. Apr 19, 2003: Victoriano Sosa - Win (UD)
31. Nov 01, 2003: Phillip N'dou - Win (TKO)
32. May 22, 2004: DeMarcus Corley - Win (UD)
33. Jan 22, 2005: Henry Bruseles - Win (TKO)
34. Jun 25, 2005: Arturo Gatti - Win (RTD)
35. Nov 19, 2005: Sharmba Mitchell - Win (TKO)
36. Apr 08, 2006: Zab Judah - Win (UD)
37. Nov 04, 2006: Carlos Baldomir - Win (UD)
38. May 05, 2007: Oscar De La Hoya - Win (SD)
39. Dec 08, 2007: Ricky Hatton - Win (TKO)
40. Sep 19, 2009: Juan Manuel Márquez - Win (UD)
41. May 01, 2010: Shane Mosley - Win (UD)
42. Sep 17, 2011: Victor Ortiz - Win (KO)
43. May 05, 2012: Miguel Cotto - Win (UD)
44. May 04, 2013: Robert Guerrero - Win (UD)
45. Sep 14, 2013: Canelo Álvarez - Win (MD)
46. May 03, 2014: Marcos Maidana - Win (MD)
47. Sep 13, 2014: Marcos Maidana - Win (UD)
48. May 02, 2015: Manny Pacquiao - Win (UD)
49. Sep 12, 2015: Andre Berto - Win (UD)
50. Aug 26, 2017: Conor McGregor - Win (TKO)

Floyd Mayweather Jr. retired with a perfect professional record of 50 wins and 0 losses, with 27 of those wins coming by knockout[1][2][3].

Citations:
[1] https://boxrec.com/en/proboxer/352
[2] https://en.wikipedia.org/wiki/Floyd_Mayweather_Jr
[3] https://www.martialbot.com/boxing/boxers/ad32dcc43f5d6789c5839da9152a6d71-floyd-mayweather-jr.html
[4] https://www.liveabout.com/floyd-mayweather-jr-career-record-424303
[5] https://fitvolution.de/homegym-equipment/
[6] https://www.c-and-a.com/eu/en/shop/fitness-gear-for-home
[7] https://health.clevelandclinic.org/best-home-gym
[8] https://www.amazon.de/-/en/gp/bestsellers/sports/26391265031