Here is how the ranking work since the 2018/19 season

2018/19 season: full rankings as of 28 June 2019 

Following the UK Championship 2019 Q2 in Northampton this is the latest ranking list:

1 PATRICK WALLACE (NI) 127
2 JONATHAN BAGLEY (ENG) 117
3 MICHAEL JUDGE (IRE) 110
4 RODNEY GOGGINS (IRE) 100
5 AARON CANAVAN (JER) 96
6 LEO FERNANDEZ (IRE) 90
7 LEE RICHARDSON (ENG) 83
8 RICHARD EMERY (ENG) 70
9 GARY FILTNESS (ENG) 67
10 WAYNE COOPER (ENG) 66
11 STUART WATSON (ENG) 65
12 GAROID O’CONNOR (ENG) 53
13 RHYDIAN RICHARDS (WAL) 52
14 GARY BRITTON (JER) 51
15 SEAN LANIGAN (ENG) 48
16 MARK WHITE (ENG) 42
17 JON CHARLTON (ENG) 41
18 LEE S MARTIN (ENG) 39
19 IGOR FIGUEIREDO (BRAZIL) 35
20 LES DODD (ENG) 34
21 SANJAY MEGHANI 30
21 TONY CORRIGAN (IRE) 30
23 JAMES O’SULLIVAN (ENG) 28
24 NICK SPELMAN (ENG) 27
24 KARL TOWNSEND (ENG) 27
26 SUCHAKREE POOMJANG (THAI) 26
27 TONY KNOWLES (LEGEND) 25
28 STEPHEN CAMPBELL (ENG) 24
28 ANDY MILLIARD (ENG) 24
30 HANS BLACKHAERT (BEL) 23
31 JOHN WHITTY (ENG) 23
32 GUO HUA (CHI) 22
32 NEIL CRAYCRAFT (ENG) 22
32 DEAN VENABLES (ENG) 22
35 AIDAN OWENS (ENG) 21
35 ROGER LEIGHTON (ENG) 21
35 AU CHI WAI/QU ZHIWEI (HK) 21
35 DEAN SYCAMORE (ENG) 21
39 ROBERT MARSHALL (ENG) 20
39 MATT FORD (ENG) 20
41 MATT COUCH (ENG) 19
42 CAO KAISHENG (CHI) 19
42 JOHN FARRELL (IRE) 19
44 SIMON DENT (ENG) 18
44 SIMON BEDFORD (ENG) 18
44 CHEN GANG (CHI) 18
44 JOHNNY STEVENS (ENG) 18
44 SEAN WARD (ENG) 18
49 JORIS MAAS (NED) 17
49 STEVE EVANS (ENG) 17
49 MARCUS LORD (ENG) 17
52 LEVI MELLIER (CAN) 16
52 NEAL JONES (ENG) 16
52 MARK BALL (ENG) 16
55 ANTHONY BONNAR (IRE) 15
55 FU JING (CHI) 15
57 STEPHEN WALDRON (ENG) 14
57 ALAN WHITFIELD (CAN) 14
57 NICHOLAS NEALE (ENG) 14
57 ANDY PAPAIACOVOU 14
61 DAVID MCDONNELL 13
61 JOHN WHITE (CAN) 13
63 CAI JIANZHONG (CHI) 12
63 FERN LOYER (CAN) 12
63 ZHANG DONGTAO (CHI) 12
63 STEVEN BIRD (ENG) 12
63 MICHAEL WRIGLEY (ENG) 12
68 MARK GRAY (ENG) 11
68 HE BAOYING (CHI) 11
68 LEWIS WALSH (ENG) 11
71 GARY SKIPWORTH (ENG) 10
71 COLM GILCREEST (IRE) 10
71 ZHAO JIJUN (CHI) 10
71 ZHOU CHANGFU (CHI) 10
71 GLEN WILKINSON (AUS) 10
71 DAREN TAYLOR (ENG) 10
71 DHAMENDRA PATEL 10
78 ANDY TURNER (ENG) 9
79 ZHANG KAI (CHI) 9
79 JOHN Y HUNTER (ENG) 9
79 CHUI CHUN FAI FRANKIE (HK) 9
79 XU XINJIAN (CHI) 9
79 BRIAN COX (ENG) 9
79 ALEX FERGUSON (ENG) 9
79 TONY DRAGO (MALTA) 9
79 TIAN WENSHUN (CHI) 9
79 NEIL CARROLL (ENG) 9
79 DERRICK CLAUS (CAN) 9
79 PHIL SNACHE (CAN) 9
79 ALI ANWAR (ENG) 9
79 GRAHAM BEARDMORE (ENG) 9
92 NEIL HERD (ENG) 8
92 JOE DELANEY (IRE) 8
92 ZHOU LEI (CHI) 8
92 AU SIU WAI/OU SHAOWE (HK) 8
92 ADAM ASHLEY 8
92 MA RONGJIE (CHI) 8
92 ANDREW GREAVES (ENG) 8
92 MUHAMMED AURANGZAIB (ENG) 8
92 ALAIN VENDERTEEN (BEL) 8
101 GARY KIKIS (ENG) 7
102 LUDOVIC ARNAERT (BEL) 7
103 LIEVEN VANTHOURNOUT (BEL) 7
103 DERMOT MCGLINCHEY (NI) 7
103 XU MAO (CHI) 7
103 LI CHUN (CHI) 7
103 DAVID ROE (ENG) 7
103 ROBERT CHAPERON (CAN) 7
103 BRADLEY JONES (ENG) 7
103 HUANG ZHI YONG (CHI) 7
103 GREG JENKINS (AUS) 7
103 SOMPOL SAETANG (THAI) 7
103 FLOYD ZIEGLER (CAN) 7
103 CRAIG MACGILLIVARY 7
103 ZHU MINGJIONG (CHI) 7
103 MARK WHITE (USA) 7
103 SURINDER GILL (ENG) 7
103 SHAUN WILKES (ENG) 7
103 GEORGE APPERLEY (ENG) 7
120 WANG CHOOI-TAN (BEL) 6
120 CHARLIE BROWN (CAN) 6
120 ASHLEY BEAL (ENG) 6
120 WANG DEFENG (CHI) 6
120 PATSY FAGAN (LEGEND) 6
120 SUN JIANJUN (CHI) 6
120 WANG BAOSHENG (CHI) 6
120 BAI YANGBO (CHI) 6
120 ZHANG HAIDONG (CHI) 6
120 WAYNE BROWN (ENG) 6
120 JOHN O’SULLIVAN (ENG) 6
120 ANDRE ROY (CAN) 6
120 CHRIS WOOD (CAN) 6
120 JOHN BROOKS (CAN) 6
120 PAUL FLEMMING (CAN) 6
120 SALMAN ARIF (CAN) 6
120 GUY HEYS (JER) 6
120 LI QI (CHI) 6
120 LI ZHONGLIN (CHI) 6
120 WU JING (CHI) 6
120 DAVID COLTRO (ITA) 6
120 ANTHONY MASSEY 6
142 ED GALATI (CAN) 5
142 NG CHEUK FAI (CHI) 5
142 JAMES RICHARDSON (ENG) 5
142 ANDREW DIACOPOULOUS 5
142 RICHARD SOMAUROO (ENG) 5
142 JAMES MCGOURAN (ENG) 5
142 AJEYA PREBHAKAR (USA) 5
142 CHRIS HART (ENG) 5
142 SEAN O’SHEA (ENG) 5
142 CAI PENG (CHI) 5
142 GUO DAYONG (CHI) 5
142 TANG WENHUA (CHI) 5
142 DHARMINDER LILLY (IND) 5
142 PUTTHIPAT SUTRASOET (THAI) 5
142 STEPHEN WALSH (IRE) 5
142 GLEN ARMSTRONG (CAN) 5
142 PAT MCARTHY (CAN) 5
142 RAJESH MARU (CAN) 5
142 WES MARTIN (CAN) 5
142 LI HONGFEI (CHI) 5
142 SAMSON HON (ENG) 5
142 STEVEN BREMAR (BER) 5
164 MAJID RANDHAWA (USA) 4
164 TAM MUSTAFA (ENG) 4
164 GERRARD MORRISON (CAN) 4
164 SEAN HALLIGAN (ENG) 4
164 YIN DONGHUI (CHI) 4
164 ADAM INGRAM (ENG) 4
164 DAVID BROWN (ENG) 4
164 DAVID HUNTER (AUS) 4
164 DAVID MORITZ (ENG) 4
164 STEVE CROWLEY (ENG) 4
164 DON NEWCOMBE (WALES) 4
164 LEE MARTIN (ENG) 4
164 IVOR FITZPATRICK (IRE) 4
164 AGIM EDRENIC (CAN) 4
164 PAUL NEAL (CAN) 4
164 SCOTT TUTTLE (CAN) 4
164 XUE TIELIANG (CHI) 4
164 YU JIZHONG (CHI) 4
164 SIMONE ZAPPI (ITA) 4
164 GIUSEPPE COLONNA (BEL) 4
184 JAN MORTELE (BEL) 3
184 CHRIS RICE (ENG) 3
184 IAN WAGSTAFF (ENG) 3
184 BEN XIAOBIN (CHI) 3
184 BU LEI (CHI) 3
184 LI YIRAN (CHI) 3
184 SU JIN (CHI) 3
184 YUAN CHENG (CHI) 3
184 JOHN MCBRIDE (IRE) 3
184 JOHN TORPEY (IRE) 3
184 ANDY JOHNSON (ENG) 3
184 BORRIAK J (THAI) 3
184 LI CHUNG PING (CHI) 3
184 NG PING WAI RANSOME (HK) 3
184 SIMON SEABRIDGE (ENG) 3
184 KEITH SHELDRICK 3
184 BRIAN MELVILLE (CAN) 3
184 DAN BISSONNETTE (CAN) 3
184 FRANK AMMIRANTE (CAN) 3
184 INDERPAL LOTEY (CAN) 3
184 JERRY PHILLIPS (CAN) 3
184 JESUS DE OLIVERA (BRA) 3
184 LASLO KOVACS (USA) 3
184 PEDRO LUIZ POLI (BRA) 3
184 DERMOT MOURAN (IRE) 3
184 MARKUS FISCHER (GER) 3
184 LEE TAYLOR (ENG) 3
184 PHILLIP BLACKBURN (ENG) 3
184 IAN SPAWTON (ENG) 3
184 MAX ACQUATI (ITA) 3
184 JOS VOETS (BEL) 3
184 DARREN BARTON (ENG) 3
184 JONATHAN WALLACE (CAN) 3
184 KEVIN KELLY (IRE) 3
184 COLIN MITCHELL (ENG) 3
184 DENIS TRISTRAM(ENG) 3
220 JOHN HUNTER (ENG) 2
220 RAYMOND GRALL (ENG) 2
220 BRADLEY FISH (ENG) 2
220 ANDREW DARKEN (ENG) 2
220 DONG HUZI (CHI) 2
220 WANG HONGBIN (CHI) 2
220 RUAN ZHENG (CHI) 2
220 XIE XHILIN (CHI) 2
220 ZHANG LEI (CHI) 2
220 ZONG ZHE (CHI) 2
220 LI JIN (A) (CHI) 2
220 LI JUN (CHI) 2
220 CHIU KIM FAT (CHI) 2
220 CHOW CHAN HUNG (HK) 2
220 JOHN WELSH (ENG) 2
220 LEUNG KAI FAI (HK) 2
220 PAUL BURRELL (ENG) 2
220 TERENCE LEUNG (HK) 2
220 YAU WONG ON (HK) 2
220 COLIN GILCHREST (ENG) 2
220 CHARLIE ROWDEN (CAN) 2
220 SYLVIAN ETHIER (CAN) 2
220 TONY PORTO (CAN) 2
220 KARL WALKER (ENG) 2
220 DAVRON AZEVEDO (BRA) 2
220 ERNST BEZEMER (USA) 2
220 FIRMIANO DE SOUZA NETO (BRA) 2
220 MIHAI VISOVAN (USA) 2
220 PAUL FEDDEN (BER) 2
220 ASGEIR GUDBJARTSSON (ICE) 2
220 DARREN SHAW (ENG) 2
220 JON INGI AEGISSON (ICE) 2
220 SCOTT RAPER (ENG) 2
220 STEVE WHALLEY (ENG) 2
220 GARRY COULSON (ENG) 2
255 KEITH THOMAS (WAL) 1
255 PAUL CURRIE (ENG) 1
255 DAREN MIRZA (ENG) 1
255 GARY MILLER (ENG) 1
255 GEOFF WILLIAMS (ENG) 1
255 ANDREW ISITT 1
255 HAN QING (CHI) 1
255 GU PING (CHI) 1
255 LU CHANGYIN (CHI) 1
255 PAN YUXIN (CHI) 1
255 ROU XIAOXIAO (CHI) 1
255 ZHU HONGZHONG (CHI) 1
255 JAMES FLAHERTY (IRE) 1
255 ANDREW MOLYNEUX (ENG) 1
255 ANDY NG (HK) 1
255 CALVIN WONG SAI WAH (CHI) 1
255 DANIEL MOONEY (ENG) 1
255 JONATHAN WONG (HK) 1
255 NG YAM SHU (HK) 1
255 ANDREW ELLIS (CAN) 1
255 CHRISTOPHER PURSLOW (CAN) 1
255 DAVID PUDDY (CAN) 1
255 DEAN FUREY (CAN) 1
255 GARY HOOVER (CAN) 1
255 GARY VOSBUGH (CAN) 1
255 JASON WILLIAMS (CAN) 1
255 JIM GOURHE (CAN) 1
255 JOHN BARNAS (CAN) 1
255 ROB RICK (CAN) 1
255 ROB WADDELL (CAN) 1
255 TONY HONG (CAN) 1
255 VINCE CHRYSLER (CAN) 1
255 WILLIAM HAMILTON (CAN) 1
255 PAT BONNAR (IRE) 1
255 RICHARD PERIC (AUS) 1
255 TONY NG (HK) 1
255 WONG CHIN MAN (CHI) 1
255 PETER DELANEY 1
255 LEE TRAVERS 1
255 DARA MARTIN 1
255 GREGORY COOKE 1
255 ALAN HARVEY (ENG) 1
255 LI JIN (B) (CHI) 1
255 WANG HONGGUANG (CHI) 1
255 XU LEI (CHI) 1
255 ZHANG JING (CHI) 1
255 ROBERT BELL (IRE) 1
255 ANDY BOLTER (ENG) 1
255 BORIS LAZARKOV (BUL) 1