GBF NUMBER SERIES
Six challenges. One standard.
The GBF Number Series is a collection of six endurance challenges.
Simple on paper. Brutal in execution.
Each test targets a different element:
pacing
load management
repeatability
discipline under fatigue
Complete them in any order.
On your own time.
On your own ground.
No judges. No shortcuts. No excuses.
THE SIX TESTS
MILE
One mile. Rising demand. No relief.
Execution
Complete 1 mile
Every minute on the minute, perform burpees
Minute 1: 1 burpee
Minute 2: 2 burpees
Continue until complete
The clock never stops
Load
CSS: No ruck
CS: 10 lb, removed for burpees
Combat: 20 lb, removed for burpees
Commando: 30 lb, removed for burpees
THREE
Three miles at a time, until failure.
Execution
Complete repeated 3 mile blocks
Each block must be finished within 1 hour
New block starts on the hour
Add weight after each block
Minimum: 5 blocks, 15 miles
End Condition
The moment you miss the hour, the event ends
Load
CSS: Start 0 lbs, +10 lbs each block
CS: Start 10 lbs, +10 lbs each block
Combat: Start 20 lbs, +10 lbs each block
Commando: Start 30 lbs, +10 lbs each block
SIX
Six miles under constant interruption.
Execution
Ruck 6 miles
Every 6 minutes, stop and complete:
6 thrusters
6 sit-ups
6 push-ups
Intervals at 6, 12, 18… minutes
The cycle never stops
Load
CSS: 10 lb
CS: 20 lb
Combat: 30 lb
Commando: 36 lb
Movement Standard
Thrusters performed holding ruck
Push-ups with ruck only at Commando tier
EIGHT
Eight miles. Controlled pace under load.
Execution
Ruck 8 miles
Time limit: 2 hours
Maintain consistent pacing throughout
Load
CSS: 33 lbs
CS: 44 lbs
Combat: 55 lbs
Commando: 55 lbs
Standard
Finish inside 2 hours
Commando target: ~1:50–1:55
NINE
Nine miles. Fixed pace. No margin.
Execution
Ruck 9 miles
Time limit: 90 minutes
Maintain pace from start to finish
Load
CSS: 10 lbs
CS: 15 lbs
Combat: 20 lbs
Commando: 31 lbs
Standard
Missing the time = failure
TWELVE
Twelve miles. The final test.
Execution
Ruck 12 miles
Time limit: 4 hours
Maintain control throughout
Load
CSS: 33 lbs
CS: 44 lbs
Combat: 55 lbs
Commando: 80 lbs
Condition
Commando must be completed at night
THE STANDARD
All challenges are completed on the honor system.
Distance, load, and time must be met exactly
The clock does not stop unless stated
Miss the standard, it does not count
If you claim it, you earned it.
TIERS
Every challenge follows the same structure:
CSS
CS
Combat
Commando
Progression is earned. Not assumed.
RECOGNITION
Each completed challenge earns its patch.
Complete all six, and you complete the series.
SKULL & DAGGERS
Complete all six at Commando level.
That is the standard.
The first 20 to do it on integrity receive the Skull & Daggers patch.
FINAL WORD
Start anywhere.
Finish all six.
