2022 USBC Junior Gold U18 U20 Pattern #4
Junior Gold
The 2022 USBC Junior Gold U18 U20 Pattern #4 is a 47-foot long pattern with light oil volume (21.9mL) featuring an asymmetrical forward/reverse split (9.25mL/12.65mL) that creates distinct track-dependent line options. The 2.86:1 ratio on this extended distance produces moderate friction transition requiring controlled speed and angular entry angles; bowlers will find defined backends without extreme hook, favoring controlled release and line discipline over raw revs. The 438 boards crossed indicates a relatively flat front with defined track walls, making this pattern well-suited for precision shot-making and rewarding adjustments between boards rather than aggressive lane movement.
• Reverse Drop Brush
Board-by-Board Volume
Forward Loads Data
| # | Start | Stop | Load | Mics | Speed | T.Oil |
|---|---|---|---|---|---|---|
| 1 | 2 | 38 | 5 | 50 | 18 | 9,250 |
| 2 | 2 | 38 | 0 | 50 | 18 | 0 |
| 3 | 2 | 38 | 0 | 50 | 22 | 0 |
Reverse Loads Data
| # | Start | Stop | Load | Mics | Speed | T.Oil |
|---|---|---|---|---|---|---|
| 1 | 2 | 38 | 0 | 50 | 30 | 0 |
| 2 | 15 | 25 | 7 | 50 | 18 | 3,850 |
| 3 | 12 | 28 | 6 | 50 | 14 | 5,100 |
| 4 | 2 | 38 | 2 | 50 | 14 | 3,700 |
| 5 | 2 | 38 | 0 | 50 | 10 | 0 |
Pattern data provided by Kegel