2021 USBC Junior Gold Qualifying (U12 U15) 45ft.
Junior Gold
The 2021 USBC Junior Gold Qualifying 45ft pattern features a balanced medium oil volume (22.5mL) with a nearly symmetrical forward/reverse split (11.1mL/11.45mL) that creates consistent lane geometry across the board. The 2.71:1 ratio combined with the extended 45-foot distance produces a moderately challenging environment where length works against sharp angular moves, rewarding bowlers with controlled ball speed and patience through the front end over those relying on backend reaction. This KEGEL-conditioned pattern crosses 451 boards total, establishing defined oil walls that favor stroker and tweener styles while still allowing aggressive players room to play direct lines if they manage their trajectory carefully.
Board-by-Board Volume
Forward Loads Data
| # | Start | Stop | Load | Mics | Speed | T.Oil |
|---|---|---|---|---|---|---|
| 1 | 2 | 38 | 6 | 50 | 18 | 11,100 |
| 2 | 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 | 5 | 50 | 18 | 2,750 |
| 3 | 12 | 28 | 4 | 50 | 18 | 3,400 |
| 4 | 9 | 31 | 3 | 50 | 18 | 3,450 |
| 5 | 2 | 38 | 1 | 50 | 14 | 1,850 |
| 6 | 2 | 38 | 0 | 50 | 14 | 0 |
Pattern data provided by Kegel