Bola Fraction Koba — 3rd Rail = Cue − (Eighths × 5 + Tips × 5)
Family 3 · Zigzag & Cross-Table (Koba)Korean Bola System (Fraction & Tips)
Bola Fraction Koba
Presets:
Steps:
Club Terms:Bola Fraction KobaKoba phân sốBola Cô Ba· Calculate Koba 3rd-rail arrival via OB1 fraction and tip count when cue ball is close to OB1.
3-Second FormulaDiamond System
Cue 50 − (4/8×5 + 2 tips×5) = 3rd Rail 20
Each 1/8 thickness = 5 units, each tip = 5 units; subtract sum from Cue.
Cue Tip
2h30 · 3 tips
2:30 running · 3 tips
Thickness
3/8 ball
3/8 medium-thin
Stroke
Speed 3/5
Smooth follow
Table CompensationWatch kiss risk
OB1 crosses table; use 3/8 or 5/8 thickness to clear.· Apply base formula
3rd Rail Arrival · Tap cell to drawCue Value × Cut Thickness (eighths, at 2 tips)
| Cue Value | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|
| 40 | — | ||||
| 50 | |||||
| 60 | |||||
| 70 |
How to play it
Quick Recognition (Bola Fraction Koba)
Calculate Koba 3rd-rail arrival via OB1 fraction and tip count when cue ball is close to OB1.
3-Second Key Points
- Formula: 3rd Rail = Cue − (Eighths × 5 + Tips × 5).
- Table Rule: Each 1/8 thickness = 5 units, each tip = 5 units; subtract sum from Cue.
- Parameters: Tip 2:30 running · 3 tips · Thickness 3/8 medium-thin · Stroke Smooth follow.
- Kiss Control: OB1 crosses table; use 3/8 or 5/8 thickness to clear.
Table Condition Compensations
- Standard: Apply base formula
- Fast Cloth: Slide longer; aim −4 units
- Slow Cloth: Wider bounce; add +5 units
- Firm Speed: Firm speed delays spin; −3 units
System formula
Băng 3 = Gốc bi chủ − (Phần 8 mặt bi × 5 + Số típ × 5)
PBA pro secret when cue ball sits close to OB1: compute 3rd rail directly from OB1 eighth-fraction and tip count.