The Transnational Boxing Rankings Board's latest rankings- those based on fights held through May 20, 2018- were posted on the TBRB's website May 22, 2018. There were changes in three divisional Top Tens:

LIGHT HEAVYWEIGHT:

Champion: Adonis Stevenson

1 (1) Sergey Kovalev
2 (3) Badou Jack
3 (2) Dmitry Bivol
4 (4) Eleider Alvarez
5 (5) Sullivan Barrera
6 (6) Oleksandr Gvozdyk
7 (7) Joe Smith, Jr.
8 (8) Artur Beterbiev
9 (9) Marcus Browne
10 (10) Anthony Yarde

Out from rankings posted May 15, 2018:
No one

FEATHERWEIGHT:

Champion: OPEN

1 (1) Leo Santa Cruz
2 (2) Carl Frampton
3 (3) Gary Russell, Jr.
4 (9) Josh Warrington
5 (5) Oscar Valdez
6 (6) Abner Mares
7 (7) Joseph Diaz, Jr.
8 (4) Lee Selby
9 (8) Jesus M. Rojas
10 (10) Scott Quigg

Out from rankings posted May 15, 2018:
No one

JUNIOR FLYWEIGHT:

Champion: OPEN

1 (1) Ken Shiro
2 (8) Hekkie Budler
3 (2) Ryoichi Taguchi
4 (3) Carlos Canizales
5 (4) Pedro Guevara
6 (5) Milan Melindo
7 (6) Ganigan Lopez
8 (7) Felix Alvarado
9 (9) Tetsuya Hisada
10 (10) Rey Loreto

Out from rankings posted May 15, 2018:
No one

TTR's listings of the Transnationals' rankings have been updated and can be perused in their entirety by clicking on the FORUM option on the left and then by scrolling down to the BOXING ORGANIZATIONS RANKINGS option and clicking on it.