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

2 things I will have to say:
- First, we need to protect dr_dave, as well as iusedtoberich at all cost.
- Second, I saw this is a top 7-foot table on this list, as of today (Oct. 29, 2025)
Neil - 7':0.85, 4 1/8", 1 1/4", 1 3/8" - 1.10 (Valley)
In what universal this 7-foot table with 4 1/8" pocket is considered tougher than whole bunch of 10-foot with 4.5" or less pocket and 9-foot tables with 4.25" or less pocket? What games, how to measure?
 

Calculate your Table Difficulty Factor (TDF) to determine how tough it plays relative to other tables. Only three pocket measurements are required, and you can use the TDF calculator or TDF spreadsheet to get your results.

username - table size, pocket mouth size, mouth-throat difference, shelf depth - TDF (table description)
Side Pocket - 10', 4 1/4", 1 1/4", 2 1/4" - 1.48 (1920s Brunswick)
CaptiveBred - 10', 4 1/8", >143.5°, 1 1/2" - 1.43 (Brunswick Anniversary)
Flakeandrun - 9', 4", 1/4", 1 1/8" - 1.41 (Diamond)
Flakeandrun - 9', 4 1/8", 9/16", 1.5" - 1.37 (Aileex)
Bob Dixon - 9', 4", 145°, 1 5/8" - 1.37 (Diamond)
gregcantrall - 10', 4", 5/8", 1 1/2" - 1.31 (Diamond)
SKILLZELITE - 9', 4 1/8", 144°, 1.5" - 1.30 (GC3)
Ricky Sy - 9', 3 3/4", 1/4", 5/8" - 1.25 (money table)
TEAM SLO - 9', 3.85", 0.6", 1.5" - 1.24 (Diamond)
acedonkeyace - 9", 4", 1/2", 2" - 1.22 (gamble table)
ChrisinNC - 10', 4 1/4", 11/16", 1 5/16" - 1.22 (Gabriel Sentinel)
8cree - 9", 4.125", 0.813", 1.562" - 1.21 (Diamond)
Bonus Ball - 9', 3 7/8", 1/8", 3/4" - 1.19 (Bonus Ball table)
Marc Vidal - 9', 4 1/8", 13/16", 1" - 1.18 (Brunswick Tournament)
takechiyo - 9', 10cm, 1.2cm, 3.5cm - 1.18 (GC5)
chevybob20 - 9', 4 1/8", 7/8", 1" - 1.18 (Centennial)
Baxter - 9', 4 1/4", 143°, 1 1/8" - 1.18 (AMF Grand Prix)
Qaddiction - 9', 4 1/8", 3/4", 1 3/8" - 1.16 (Diamond)
angluse - 8'+, 3 13/16", 9/16", 7/8" - 1.16 (1935 Brunswick Challenger)
Tom Cruise - 9', 4", 1/8", 1 3/8" - 1.15 (Golden West)
ChrisinNC - 10', 4 3/8", 11/16", 1 5/16" - 1.15 (Gabriel Sentinel)
rexus31 - 9', 4", 3/8", 1" - 1.15 (1950s AMF)
FatBoy - 9', 4", 1/4", 1" - 1.14 (GC)
TATE - 9', 4", 1/4", 7/8" - 1.14 (GC)
Phreaticus - 9’, 4.25”, 0.76”, 1.30" - 1.14 (GC6 Tournament Edition)
Mikjary - 9', 4", 9/16", 1 5/16" - 1.13 (Brunswick Centurion)
ChrisinNC - 9', 4 1/8", 5/8", 1 1/4" - 1.13 (Gabriel Signature)
rexus31 - 9', 4.125", 0.505", 1.125" - 1.12 (GC)
Cardigan Kid - 10', 4.5", 0.88", 1.5" - 1.12 (GC)
Ralph Kramden - 9', 4 5/16", 1", 1 3/4" - 1.12 (GC)
pocket - 9', 4 3/16", 7/16", 1 7/8" - 1.12 (unknown)
Justaneng - 8', 4", 7/8", 1 1/2" - 1.12 (Olhausen)
Double-Dave - 6', 3.55", 0.3", 1" - 1.12 (Maxima)
Jaden S - 9’, 4 1/4”, 3/4”, 1 3/8” - 1.11 (Olhausen)
ShaneVanNothin - 9', 4 1/4", 1", 2" - 1.10 (Brunswick)
Neil - 7':0.85, 4 1/8", 1 1/4", 1 3/8" - 1.10 (Valley)
MahnaMahna - 10', 5 1/2", 2", 2 1/2" - 1.09 (converted from snooker table)
tjlmbklr - 8'+, 4", 141°, 1 1/4" - 1.09 (unknown)
grobbs - 9', 4 1/4", 0.625", 1.5" - 1.09 (GC2)
Cardigan Kid - 9', 4 1/4", 0.45", 1 5/16" - 1.08 (GC2)
bbb - 9', 4 1/4", 5/8", 1" - 1.08 (GC)
kanzzo - 9', 4 1/4", 5/8", 1" - 1.08 (GC5)
Pubo - 8’, 4”, 1/4”, 1 1/4” - 1.08 (Rasson)
MSchaffer - 9', 4 7/16, 15/16", 1 5/8" - 1.07 (GC2)
cigardave - 9', 4 1/2", 1", 1 3/4" - 1.07 (Diamond)
peppersauce - 9', 4 1/4", 3/8", 1 1/4" - 1.06 (GC3)
Oilheadoug - 10', 4.5", 4.0", 0.5", 1.5" - 1.06 (Brunswick Anniversary)
Side Pocket - 10', 4 7/8", 1", 1 1/2" - 1.05 (1920s Brunswick)
Pool Hustler - 9', 4 1/4", 1/4", 15/16" - 1.05 (GC)
IbeAnEngineer - 9', 4.5", 1.0", 1.5" - 1.05 (GC)
JC - 9', 4 7/16", 143°, 1 3/8" - 1.05 (GC3)
TheGrandWazoo - 8', 4.15", 0.65", 1.5" - 1.05 (rebuilt Beach)
Banger - 9', 4 1/2", 7/8", 1 3/4" - 1.04 (GC3)
pw98 - 8.5', 4.25", 0.75", 1.0" - 1.04 (custom)
Jimmorrison - 7', 3 7/8", 7/16", 3/4" - 1.03 (Ruxton)
laedco58 - 9’: 4.5", 0.75": 1.75" - 1.02 (Diamond)
SloMoHolic - 9', 4 1/2", 7/8", 1 3/8" - 1.02 (Diamond)
jondrums - 9', 11.9cm, 2.5cm, 4.2cm - 1.02 (Diamond)
pw98 - 10', 5.0", 1.0", 1.0" - 1.02 (Brunswick Regent)
CoreyClark - 9', 5", 1", 2 1/8" - 1.02 (GC)
bignick31985 - 9', 4 3/8", 0.475", 1.5" - 1.01 (GC4)
"standard" table - 9', 4 7/16", 9/16", 1 5/8" - 1.00 (average-difficulty table)
DeadStick - 9', 4.5", 0.625", 1.75" - 1.00 (1958 Brunswick Centennial)
BRKNRUN - 9', 4.3", 0.4", 1.5" - 1.00 (GC1)
Tennesseejoe- 9', 4.25", 1/4", 1 3/8" - 1.00 (1912 Brunswick Saratoga)
coxcol15 - 7', 4.25", 1", 1.25" - 1.00 (Valley)
Goldball - 8', 12.2cm, 4cm, 5.4cm - 1.00 (Heiron & Smith)
pw98 - 8.5', 4.25", 0.5", 0.75" - 0.99 (Gandy Miss America)
dr_dave - 9', 5", 1 1/8", 1.5" - 0.99 (Olhausen)
dr_dave - 9', 5", 1 1/8", 1 3/8" - 0.99 (GC2)
Call_me_Tom - 7', 4", 1/2", 1" - 0.99 (Valley)
MVPCues - 9', 4 1/2", 1/2", 1 5/8" - 0.98 (1902 Brunswick Jefferson)
oldschool1478 - 9', 4 1/2", 0.625", 1.5" - 0.98 (Diamond)
freds - 8'+, 4.9", 1.1", 1.8" - 0.98 (Gandy Big G)
cjr3559 - 9', 4 1/2", 3/4", 1 1/4" - 0.97 (GC5 - Tournament)
Cardigan Kid - 9', 4 1/2", 3/4", 1 1/16" - 0.97 (GC3)
TheGrandWazoo - 9', 4 5/8", 3/4", 1 3/4" - 0.97 (Diamond)
Korsakoff - 9', 4 3/4", 3/4", 1 3/4" - 0.97 (Diamond Paragon)
wigglybridge - 9', 4 1/2", 5/8", 1 1/2" - 0.98 (rebuilt GC)
westcoast - 7', 4", 0", 1.5" - 0.98 (Valley)
BryanB - 9', 4 1/2"0, 3/4", 1 1/4" - 0.97 (1931 Brunswick)
Poolmanis - 9', 10.9cm, 1cm, 3.1cm - 0.97 (SAM)
Vahmurka - 9', 12.5cm, 20mm, 45mm - 0.97 (Brunswick Metro)
mamics - 9', 4 11/16", 143°, 1 3/16" - 0.97 (no-name)
Will Maynard - 9', 4 3/4", 1", 3/4" - 0.97 (1904 Brunswick Narragansett)
dzcues - 9', 4 7/8", 11/16", 1 15/16" - 0.96 (Diamond)
dr_dave - 9', 4 5/8", 9/16", 1 3/4" - 0.95 (modified Olhausen)
follownoone - 4.75", 0.75", 1.5" - 0.95 (GC4)
jviss - 9’, 4.98”, 0.76”, 1.625” - 0.95 (GC)
Hercus - 9’, 5”, 1", 1.5” - 0.95 (Brunswick Avalon II)
logical - 9', 5", 7/8", 1 3/4" - 0.95 (GC2)
dzcues - 9', 5", 15/16", 1 1/2" - 0.95 (Gandy Big G)
Sloppy Pockets - 8'+, 5", 1 1/8", 1 3/4" - 0.95 (A.E. Schmidt)
44Runner - 8', 4 3/8", 3/4", 1" - 0.94 (Diamond)
jtaylor-996 - 8'+, 4.5", 0.5", 1.625" - 0.93 (Diamond)
Taz - 8'+, 5", 1", 1.75" - 0.93 (Buckhorn)
Corwyn_8 - 9', 4 3/4", 1 3/4", 1 1/4" - 0.92 (Gandy Winchester)
Jedco - 9', 4 3/4", 3/4", 1 1/4" - 0.91 (GC)
beetle - 9', 13.1cm, 2.2cm, 4.3cm - 0.91 (Olhausen York)
frigopie - 9', 11.5cm, 138.7°, 3.5cm - 0.91 (Eurotour Dynamic III)
12squared - 9', 4 7/8", 3/4", 1 1/2" - 0.91 (GC)
iusedtoberich - 9', 5 1/8", 1":, 1 1/2" - 0.90 (GC)
MSchaffer - 9', 5 1/8", 3/4", 1 3/4" - 0.89 (GC2)
mfinkelstein3 - 9', 5 1/8", 7/8", 1 1/2" - 0.88 (GC3)
StraightPoolIU - 9', 4 7/8", 3/4", 1 1/4" - 0.88 (GC)
Vahmurka - 9', 5 1/8", 7/8", 1 1/2" - 0.88 (GC)
Dopc - 8', 4 1/2", 3/4", 1 1/4" - 0.87 (Connelly)
SloMoHolic - 8', 4 3/4", 3/4", 1 5/8" - 0.87 (Brunswick Medalist)
RobMan - 9', 5", 3/4", 1.5" - 0.86 (GC)
ljump12 - 8'+, 4 7/8", 4 1/8", 1.5" - 0.86 (GC)
sniggihs - 7', 4 1/2", 5/8", 1 3/4" - 0.85 (Diamond)
SloMoHolic - 8'+, 4 7/8", 7/8", 1 1/4" - 0.85 (Brunswick Medalist)
buckshotshoey - 8', 4 3/4", 3/4", 1 1/2" - 0.85 (American Heritage)
nateobot - 7', 4 3/8", 1/2", 1 3/4" - 0.85 (custom)
angluse - 8'+, 4 5/8", 7/16", 1 3/16" - 0.84 (1935 Brunswick Challenger)
dr_dave - 8', 4 3/4", 5/8", 1 3/8" - 0.84 (Connelly)
BRussell - 8', 5", 13/16", 1 1/2" - 0.83 (Olhausen)
Lovepool - 9', 13cm, 1cm, 3.5cm - 0.82 (home)
jtaylor996 - 7', 5 1/8", 146°, 1.51" - 0.82 (Legacy)
loggerhead12 - 8', 5", 13/16", 1 1/4" - 0.81 (Brunswick Manchester II)
kanzzo - 9', 5 1/8", 139°, 1 1/4" - 0.80 ("Legends of Pocket Billiards" GC3)
Mooneye - 7', 4 7/8", 3/4", 1 5/8" - 0.79 (Brunswick Ranchero)
dzcues - 7', 4 1/2", 0", 1/2" - 0.77 (Valley)
dr_dave - 7', 4 1/2", 0", 3/4" - 0.77 (Valley)
SloMoHolic - 6', 4 1/2", 0", 5/8" - 0.77 (Valley)
This dude is once again hitting a grand slam sharing info.
 
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