Table Difficulty Factor (TDF) for measuring table "toughness"

dr_dave

Instructional Author
Gold Member
Silver Member
I don't seen any 8' diamond red labels in the list. Here's mine (thicker pocket shims, but not double shimmed):

8' pro
4.5" pocket size
4" throat size
1.625" shelf size
TDF: 0.93 (mobile calc)

That's the TDF, but it plays like a SOB right now. Slates have dish, each on a different level, and every rail plays different. Ugh. For a commercial table I rescued out of a pub it sure needs a lot of maintenance.

Thank you for posting. I've added it to the list.
 

dr_dave

Instructional Author
Gold Member
Silver Member
Here's the latest:

Calculate your Table Difficulty Factor (TDF) to determine how tough it plays in comparison to other tables. Only three pocket measurements are required, and you can use the online mobile-friendly TDF calculator (created by "Isaac") or the TDF Excel spreadsheet calculator to get your results.

username - table size, pocket mouth size, mouth-throat difference, shelf depth - TDF (table description)
Vahmurka - 12':1.25, 7.2cm:1.55, 125deg:0.97, 25mm:0.98 - 1.84 (Russian pyramid table)
Side Pocket - 10':1.10, 4 1/4":1.10, 1 1/4":1.14, 2 1/4":1.07 - 1.48 (1920-1925 Brunswick, modified)
CaptiveBred - 10':1.10, 4 1/8":1.15, >143.5deg:1.14, 1 1/2":0.99 - 1.43 (Brunswick Anniversary modified)
Bob Dixon - 9':1.00, 4":1.20, 145deg:1.14, 1 5/8":1.00 - 1.37 (Pool Sharks, Las Vegas, money table, Red Diamond Pro-Am, modified)
gregcantrall - 10':1.10, 4":1.20, 5/8":1.00, 1 1/2":0.99 - 1.31 (10 foot Diamond in the Sun City West, AZ Rec Center)
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)
acedonkeyace - 9":1.00, 4":1.20, 1/2":0.99, 2":1.03 - 1.22 (gamble table at sidePocket in Largo, FL)
ChrisinNC - 10':1.1, 4 1/4":1.1, 11/16":1.02, 1 5/16":0.99 - 1.22 (shimmed Gabriel Sentinel, modified, at Family Billiards in Boone, NC)
8cree - 9":1.00, 4.125":1.15, 0.813":1.05, 1.562":1.00 - 1.21 (Diamond Blue Label at The Birds Nest in Summerville, SC)
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, 13/16":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 (modified Centennial)
Baxter - 9':1.00, 4 1/4":1.10, 143deg:1.09, 1 1/8":0.98 - 1.18 (modified AMF Grand Prix)
Qaddiction - 9':1.00, 4 1/8":1.15, 3/4":1.02, 1 3/8":0.99 - 1.16 (Diamond)
angluse - 8'+: 0.95, 3 13/16":1.25, 9/16":1.00, 7/8":0.98 - 1.16 (modified 1935 Brunswick Challenger)
Tom Cruise - 9':1.00, 4":1.20, 1/8":0.97, 1 3/8":0.99 - 1.15 (Golden West)
ChrisinNC - 10':1.1, 4 3/8":1.05, 11/16":1.02, 1 5/16":0.98 - 1.15 (original Gabriel Sentinel, modified, at Family Billiards in Boone, NC)
rexus31 - 9':1.00, 4":1.20, 3/8":0.98, 1":0.98 - 1.15 (mid to late 1950s 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 (modified GC)
TATE - 9':1.00, 4":1.20, 1/4":0.97, 7/8":0.98 - 1.14 (modified GC)
Mikjary - 9'-1.00, 4":1.15, 9/16":1.00, 1 5/16":0.98 - 1.13 (Brunswick Centurion)
ChrisinNC - 9':1.00, 4 1/8":1.15, 5/8":1.0, 1 1/4":0.98 - 1.13 (tightest Gabriel's Signature Pro, modified, at Family Billiards in Boone, NC - Table 7)
rexus31 - 9':1.0, 4.125":1.15, 0.505":0.99, 1.125":0.98 - 1.12 (GC I)
Cardigan Kid - 10':1.10, 4.5":1.00, 0.88":1.04, 1.5":0.98 - 1.12 (GC from Steinway Billiards)
Ralph Kramden - 9':1.0, 4 5/16":1.05, 1":1.07, 1 3/4":1.00 - 1.12 (1962 GC I)
pocket - 9':1.00 - 4 3/16":1.10, 7/16":0.99, 1 7/8":1.03 - 1.12 (unknown)
Justaneng - 8':0.90 - 4":1.20, 7/8":1.05, 1 1/2":0.99 - 1.12 (Olhausen)
ShaneVanNothin - 9':1.00, 4 1/4":1.10, 1":0.97, 2":1.03 - 1.10 (Modified Brunswick)
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)
tjlmbklr - 8'+:0.95, 4":1.15, 141deg:1.02, 1 1/4":0.98 - 1.09 (unknown, maybe homemade or a kit table)
Cardigan Kid - 9':1.00, 4 1/4":1.10, 0.45":0.99, 1 5/16":0.99 - 1.08 (GC II)
kanzzo - 9':1.00, 4 1/4":1.10, 5/8":1.00, 1":0.98 - 1.08 (GC V tournament edition)
MSchaffer - 9':1.00, 4 7/16:1.00, 15/16":1.07, 1 5/8":1.00 - 1.07 (GC II, modified)
cigardave - 9':1.00, 4 1/2":1.00, 1":1.07, 1 3/4":1.00 - 1.07 (typical Pro-Cut Diamond)
peppersauce - 9':1.00, 4 1/4":1.10, 3/8":0.98, 1 1/4":0.98 - 1.06 (GC 3)
Side Pocket - 10':1.10, 4 7/8":0.91, 1":1.07, 1 1/2":0.98 - 1.05 (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)
JC - 9':1.00 - 4 7/16":1.00, 143deg:1.07, 1 3/8":0.98 - 1.05 (modified GC III)
Banger - 9':1.00, 4 1/2":1.00, 7/8":1.04, 1 3/4":1.00 - 1.04 (modified GC III)
Jimmorrison - 7':0.85, 3 7/8":1.25, 7/16":0.99, 3/4":0.98 - 1.03 (modified Ruxton)
SloMoHolic - 9':1.00, 4 1/2":1.00, 7/8":1.04, 1 3/8":0.98 - 1.02 (2005 Red Diamond Pro with ProCut pockets)
jondrums - 9':1.00, 11.9cm:0.95, 2.5cm:1.07, 4.2cm:1.00 - 1.02 (Diamond Professional)
CoreyClark - 9':1.00, 5":0.91, 1":1.07, 2 1/8":1.05 - 1.02 (GC I)
bignick31985 - 9':1.00, 4 3/8":1.05, 0.475":0.98, 1.5":0.98 - 1.01 (GC IV)
"standard" table - 9':1.00, 4 7/16":1.00, 9/16":1.00, 1 5/8":1.00 - 1.00 (average-difficulty table)
coxcol15 - 7':0.85, 4.25":1.10, 1":1.09, 1.25":0.98 - 1.00 (Valley barbox w/ Ridgeback pro cuts)
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)
Call_me_Tom - 7':0.85, 4":1.20, 1/2":0.99, 1":0.98 - 0.99 (Valley bar box with Penguin Pro rails)
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, 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)
westcoast - 7':0.85, 4":1.20, 0":0.97, 1.5":0.99 - 0.98 (Valley bar box)
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)
jviss - 9’:1.00, 4.98”:0.91, 0.76”:1.04, 1.625”:1.00 - 0.95 (GC I)
logical - 9':1.00, 5": 0.91, 7/8":1.04, 1 3/4":1.00 - 0.95 (GC II)
dr_dave - 9':1.00, 5": 0.91, 1":1.07, 1 1/5":0.98 - 0.95 (Olhausen purchased from Robert Byrne)
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 (Diamond Pro-Am - blue label)
jtaylor-996 - 8' pro:0.95, 4.5":1.00, 0.5":0.98, 1.625":1.0 - 0.93 (red label Diamond)
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 (Connelly Kayenta)
SloMoHolic - 8':0.90, 4 3/4":0.95, 3/4":1.02, 1 5/8":1.00 - 0.87 (old Brunswick Medalist league table)
RobMan - 9':1.0, 5": 0.88, 3/4":1.01, 1.5":0.97 - 0.86 (GC)
sniggihs - 7':0.85, 4 1/2":1.00, 5/8":1.00, 1 3/4":1.00 - 0.85 (Diamond - Blue Label)
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)
angluse - 8'+: 0.95, 4 5/8":0.95, 7/16":0.98, 1 3/16":0.95 - 0.84 (1935 Brunswick Challenger)
dr_dave - 8':0.90, 4 3/4":0.95, 5/8":1.00, 1 3/8":0.98 - 0.84 (Connelly home table)
BRussell - 8':0.90, 5":0.91, 13/16":1.04, 1 1/2":0.98 - 0.83 (Olhausen)
Lovepool - 9':1.00, 13cm:0.88, 1cm:0.96, 3.5cm:0.97 - 0.82 (home table)
jtaylor996 - 7':0.85, 5 1/8":0.88, 146deg:1.09, 1.51":1.00 - 0.82 (Legacy home table)
Mooneye - 7':0.85, 4 7/8":0.91, 3/4":1.02, 1 5/8":1.00 - 0.79 (Brunswick "Ranchero")
SloMoHolic - 6':0.85, 4 1/2":1.00, 0":0.95, 5/8":0.95 - 0.77 (old Valley "bar box")
dzcues - 7':0.85, 4 1/2":1.00, 0":0.95, 1/2":0.95 - 0.77 (Valley "bar box")
dr_dave - 7':0.85, 4 1/2":1.00, 0":0.95, 3/4":0.95 - 0.77 (Valley "bar box" at West End, Fort Collins)
 
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