All patterns
PR8.3
USBCSport
2018 U.S. Open #1
PR8.3What's this?Designed for: VARIABLE BUFFER SPEEDS | REVERSE DROP BRUSH
- Distance
- 37 ft
- Volume
- 27.25 mL
- Ratio
- 1.00:1
- Drop brush
- 30 ft
- Forward
- 18.50 mL
- Reverse
- 8.75 mL
- Tanks
- CURRENT
- Pump
- 50µL
Forward loads
| # | Start | Stop | Loads | Mics | Speed | Buff | Tank | Distance | T. oil |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2L | 2R | 3 | 50 | 14 | 3 | B - Current | 0 → 4 | 5,550 |
| 2 | 2L | 2R | 4 | 50 | 18 | 3 | B - Current | 4 → 14 | 7,400 |
| 3 | 2L | 2R | 3 | 50 | 18 | 3 | B - Current | 14 → 22 | 5,550 |
| 4 | 2L | 2R | 0 | 50 | 18 | 3 | B - Current | 22 → 30 | 0 |
| 5 | 2L | 2R | 0 | 50 | 18 | 2 | B - Current | 30 → 34 | 0 |
| 6 | 2L | 2R | 0 | 50 | 18 | 1 | B - Current | 34 → 37 | 0 |
| Total | 18,500 µL | ||||||||
Reverse loads
| # | Start | Stop | Loads | Mics | Speed | Buff | Tank | Distance | T. oil |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2L | 2R | 0 | 50 | 30 | 3 | B - Current | 30 → 24 | 0 |
| 2 | 3L | 3R | 3 | 50 | 26 | 3 | B - Current | 24 → 13 | 5,250 |
| 3 | 3L | 3R | 2 | 50 | 22 | 3 | B - Current | 13 → 7 | 3,500 |
| 4 | 2L | 2R | 0 | 50 | 18 | 3 | B - Current | 7 → 0 | 0 |
| Total | 8,750 µL | ||||||||
Pinlocity Rating (PR)
How hard this pattern plays, 1 (a walled house shot) to 10 (long, flat, and heavy). Tough. Computed from the sheet numbers and the load tables; no opinions involved.
- Ratio 45%10.0Flatter patterns score higher. 10:1 walls score 1, dead flat scores 10.
- Distance 25%4.839 to 41 ft is the playable band; longer and shorter both climb.
- Outside oil 20%10.0Oil on boards 3 to 7 takes away the miss room, measured from the load tables.
- Volume 10%5.620 to 26 mL is typical; heavier or lighter both add difficulty.
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Notes
Kegel Pattern Library: Usbc Patterns / U.S. Open.
Sheet dated 2018-01-01. Pattern data from the Kegel Pattern Library, reproduced with credit to Kegel and USBC.

