Latest update:
Here's a
mobile-friendly online tool (created by "Isaac") and an
Excel spreadsheet for automatically calculating the TDF factors to determine the difficulty level of a table.
Measurements and data reported by AZB users for
table difficulty factor (TDF), based on the
table size factor (TSF),
pocket size factor (PSF),
pocket angle factor (PAF), and
pocket shelf factor (PLF):
name -- table_size:TSF -- pocket_mouth_sizeSF -- mouth-throat_differenceAF -- shelf_depthLF -- TDF (table description)
Vahmurka -- 12':1.25 -- 7.2cm:1.55 -- 125deg:0.97 -- 25mm:0.98 --
1.84 (12ft Russian pyramid table)
dr_dave -- 10':1.10 -- 4":1.20 -- 3/4":1.02 -- 1 7/8":1.03 --
1.39 (fictitious tough 10' table example)
Bob Dixon -- 9':1.00 -- 4":1.20 -- 145deg:1.14 -- 1 5/8":1.00 --
1.37 (Pool Sharks, Las Vegas, money table, Diamond Pro-Am, red logo, Ernesto Dominguez-modified)
dr_dave -- 9':1.00 -- 3 7/8":1.25 -- 5/8":1.00 -- 2 1/8":1.07 --
1.34 (fictitious example "B")
Ricky Sy -- 9':1.00 -- 3 3/4":1.31 -- 1/4":0.97 -- 5/8":0.98 --
1.25 (money table at Hard Times in Bellflower, CA)
Bonus Ball -- 9':1.00 -- 3 7/8":1.25 -- 1/8":0.97 -- 3/4":0.98 --
1.19 (Bonus Ball table)
Marc Vidal -- 9':1.00 -- 4 1/8":1.15 -- 7/16":1.05 -- 1":0.98 --
1.18 (shimmed Brunswick Tournament Edition)
chevybob20 -- 9':1.00 -- 4 1/8":1.15 -- 7/8":1.05 -- 1":0.98 --
1.18 (Mark-Gregory-modified Centennial)
Qaddiction -- 9':1.00 -- 4 1/8":1.15 -- 3/4":1.02 -- 1 3/8":0.99 --
1.16 (Diamond)
rexus31 -- 9':1.00 -- 4":1.20 -- 3/8":0.98 -- 1":0.98 --
1.15 (mid to late 50's AMF Commercial Model similar to a Brunswick Anniversary/Sport King)
FatBoy -- 9':1.00 -- 4":1.20 -- 1/4":0.97 -- 1":0.98 --
1.14 (Ernesto-Dominguez-modified GC)
TATE -- 9':1.00 -- 4":1.20 -- 1/4":0.97 -- 7/8":0.98 --
1.14 (Ernesto-Dominguez-modified GC)
Mikjary -- 9'-1.00 -- 4":1.15 -- 9/16":1.00 -- 1 5/16":0.98 --
1.13 (Brunswick Centurion)
Ralph Kramden -- 9':1.0 -- 4 5/16":1.05 -- 1":1.07 -- 1 3/4":1.00 --
1.12 (1962 Nine foot Gold Crown 1)
pocket -- 9':1.00 -- 4 3/16":1.10 -- 7/16":0.99 -- 1 7/8":1.03 --
1.12 (unknown)
Neil -- 7':0.85 -- 4 1/8":1.15 -- 1 1/4":1.14 -- 1 3/8":0.99 --
1.10 (modified Valley "bar box")
MahnaMahna -- 10':1.10 -- 5 1/2":0.85 -- 2":1.09 -- 2 1/2": 1.07 --
1.09 (snooker table poorly converted into a pool table)
Cardigan Kid -- 9':1.00 -- 4 1/4":1.10 -- 0.45":0.99 -- 1 5/16":0.99 --
1.08 (GC II)
MSchaffer -- 9':1.00 -- 4 7/16:1.00 -- 15/16":1.07 -- 1 5/8":1.00 --
1.07 (GCII, RKC mod)
cigardave -- 9':1.00 -- 4 1/2":1.00 -- 1":1.07 -- 1 3/4":1.00 --
1.07 (typical Pro-Cut Diamond)
Side Pocket -- 10':1.10 -- 4 7/8":0.91 -- 1":1.07 -- 1 1/2":0.98 --
1.05 (10' 1920-1925 Brunswick)
Pool Hustler -- 9':1.00 -- 4 1/4":1.10 -- 1/4":0.97 -- 15/16":0.98 --
1.05 (modified GC, measured by rexus31)
JC -- 9':1.00 -- 4 7/16":1.00 -- 143deg:1.07 -- 1 3/8":0.98 --
1.05 ("Cobrasized" GC III)
SloMoHolic -- 9':1.00 -- 4 1/2":1.00 -- 7/8":1.04 -- 1 3/8":0.98 --
1.02 (2005 Diamond Pro with ProCut pockets and Red-label rails)
CoreyClark -- 9':1.00 -- 5":0.91 -- 1":1.07 -- 2 1//8":1.05 --
1.02 (GC I)
"standard" table -- 9':1.00 -- 4 7/16":1.00 -- 9/16":1.00 -- 1 5/8":1.00 -- 1.00 (average-difficulty table)
Goldball -- 8':0.90 -- 12.2cm:0.91 -- 4cm:1.14 -- 5.4cm:1.07 --
1.00 (Heiron & Smith)
dr_dave -- 9':1.00 -- 5": 0.91 -- 1 1/8":1.10 -- 1 3/8":0.99 --
0.99 (old GC II at MatchUps, Fort Collins)
MVPCues -- 9':1.00 -- 4 1/2":1.00 -- 1/2":0.98 -- 1 5/8":1.00 --
0.98 (Antique Brunswick Jefferson, circa 1900)
oldschool1478 -- 9':1.00 -- 4 1/2":1.00 -- 0.625":1.00 -- 1.5":0.98 --
0.98 (updated Red Badge Diamond Pro)
freds -- 8'+: 0.95 -- 4.9":0.91 -- 1.1":1.1 -- 1.8" 1.03 --
0.98 (Gandy Big G, oversized 8)
Cardigan Kid -- 9':1.00 -- 4 1/2":1.00 -- 3/4":1.02 -- 1 1/16":0.95 --
0.97 (GC III Table 7 at Premium Billiards, Syracuse, Mark Gregory-modified w/ Artemis cushions)
wigglybridge -- 9':1.00 -- 4 1/2":1.00 -- 5/8":1.00 -- 1 1/2": 0.98 --
0.98 (GC 1.5, rails rebuilt & cushions replaced by Jay Spielberg)
BryanB -- 9':1.00 -- 4 1/2":1.00 -- 3/4":1.02 -- 1 1/4":0.95 --
0.97 (1931 Brunswick with double shimmed pockets)
Poolmanis -- 9':1.00 -- 10.9cm:1.05 -- 1cm:0.97 -- 3.1cm:0.95 --
0.97 (modified SAM)
Vahmurka -- 9':1.0 -- 12.5cm:0.91 -- 20mm:1.04 -- 45mm:1.03 --
0.97 (Brunswick Metro)
mamics -- 9':1.00 -- 4 11/16":0.95 -- 143deg:1.07 -- 1 3/16":0.95 --
0.97 (no-name "Chinese Cheapie" with Uylin cushions)
dzcues -- 9':1.00 -- 4 7/8":0.91 -- 11/16":1.02 -- 1 15/16":1.03 --
0.96 (typical League-Cut Diamond)
dzcues -- 9':1.00 -- 5":0.91 -- 15/16":1.07 -- 1 1/2":0.98 --
0.95 (Gandy Big G)
Sloppy Pockets -- 8'+:0.95 -- 5":0.91 -- 1 1/8":1.10 -- 1 3/4":1.00 --
0.95 (A.E. Schmidt)
44Runner -- 8'+/-:0.925 -- 4 3/8":1.05 -- 3/4":1.02 -- 1":0.95 --
0.94 (8' Diamond Pro-Am - blue label)
Corwyn_8 -- 9':1.00 -- 4 3/4":0.95 -- 1 3/4":1.02 -- 1 1/4":0.95 --
0.92 (Gandy Winchester)
beetle -- 9':1.00 -- 13.1cm:0.88 -- 2.2cm:1.03 -- 4.3cm:1.00 --
0.91 (Olhausen York)
frigopie -- 9':1.00 -- 11.5cm:0.95 -- 138.7deg:0.98 -- 3.5cm:0.98 --
0.91 (Eurotour Dynamic III)
12squared -- 9':1.00 -- 4 7/8":0.91 -- 3/4":1.02 -- 1 1/2":0.98 --
0.91 (GC home table)
iusedtoberich -- 9':1.00 -- 5 1/8":0.88 -- 1":1.05 -- 1 1/2":0.97 --
0.90 (GC)
MSchaffer -- 9':1.00 -- 5 1/8":0.88 -- 3/4":1.01 -- 1 3/4":1.00 --
0.89 (GC II)
mfinkelstein3 -- 9':1.00 -- 5 1/8":0.88 -- 7/8":1.03 -- 1 1/2": 0.97 --
0.88 (GC III)
StraightPoolIU -- 9':1.00 -- 4 7/8":0.91 -- 3/4":1.02 -- 1 1/4":0.95 --
0.88 (GC I)
Vahmurka -- 9':1.00 -- 5 1/8":0.88 -- 7/8":1.03 -- 1 1/2": 0.97 --
0.88 (GC)
Dopc -- 8':0.90 -- 4 1/2":1.00 -- 3/4":1.02 -- 1 1/4":0.95 --
0.87 (8' Connelly Kayenta)
SloMoHolic -- 8':0.90 -- 4 3/4":0.95 -- 3/4":1.02 -- 1 5/8":1.00 --
0.87 (old 8' Brunswick Medalist league table)
RobMan -- 9':1.0 -- 5": 0.88 -- 3/4":1.01 -- 1.5":0.97 --
0.86 (GC)
SloMoHolic -- 8'+:0.95 -- 4 7/8":0.91 -- 7/8":1.04 -- 1 1/4":0.95 --
0.85 (Brunswick Medalist at Stardust Club in Manchaca, TX)
buckshotshoey -- 8':0.90 -- 4 3/4":0.95 -- 3/4":1.02 -- 1 1/2":0.98 --
0.85 (American Heritage "Independence")
nateobot -- 7':0.85 -- 4 3/8":1.05 -- 1/2":0.95 -- 1 3/4":1.00 --
0.85 (custom-made)
dr_dave -- 8':0.90 -- 4 3/4":0.95 -- 5/8":1.00 -- 1 3/8":0.98 --
0.84 (8' Connelly home table)
BRussell -- 8':0.90 -- 5":0.91 -- 13/16":1.04 -- 1 1/2":0.98 --
0.83 (8' Olhausen)
jtaylor996 -- 7':0.85 -- 5 1/8":0.88 -- 146deg:1.09 -- 1.51":1.00 --
0.82 (7' Legacy home table)
dr_dave -- 8':0.90 -- 5":0.91 -- 1/2":0.98 -- 1 3/8":0.98 --
0.79 (fictitious 8' example "A")
Mooneye -- 7':0.85 -- 4 7/8":0.91 -- 3/4":1.02 -- 1 5/8":1.00 --
0.79 (7' Brunswick "Ranchero")
SloMoHolic -- 6':0.85 -- 4 1/2":1.00 -- 0":0.95 -- 5/8":0.95 --
0.77 (old 6' Valley "bar box")
dzcues -- 7':0.85 -- 4 1/2":1.00 -- 0":0.95 -- 1/2":0.95 --
0.77 (7' Valley "bar box")
dr_dave -- 7':0.85 -- 4 1/2":1.00 -- 0":0.95 -- 3/4":0.95 --
0.77 (7' Valley "bar box" at West End, Fort Collins)