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PR8.1
USBCSport
2021 U.S. Open #3
PR8.1What's this?Designed for: DUAL CONDITIONING TANKS | REVERSE DROP BRUSH
- Distance
- 44 ft
- Volume
- 28.44 mL
- Ratio
- 1.54:1
- Drop brush
- 38 ft
- Forward
- 20.52 mL
- Reverse
- 7.92 mL
- Tanks
- ICE & ICE
- Pump
- 55µL
Forward loads
| # | Start | Stop | Loads | Mics | Speed | Buff | Tank | Distance | T. oil |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2L | 2R | 5 | 55 | 18 | 3 | B - Ice | 0 → 10 | 10,175 |
| 2 | 4L | 5R | 4 | 55 | 18 | 3 | B - Ice | 10 → 20 | 7,040 |
| 3 | 5L | 6R | 2 | 55 | 18 | 3 | B - Ice | 20 → 25 | 3,300 |
| 4 | 2L | 2R | 0 | 55 | 22 | 3 | B - Ice | 25 → 44 | 0 |
| Total | 20,515 µL | ||||||||
Reverse loads
| # | Start | Stop | Loads | Mics | Speed | Buff | Tank | Distance | T. oil |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2L | 2R | 0 | 55 | 30 | 3 | A - Ice | 38 → 24 | 0 |
| 2 | 8L | 7R | 3 | 55 | 26 | 3 | A - Ice | 24 → 13 | 4,290 |
| 3 | 4L | 4R | 2 | 55 | 22 | 3 | A - Ice | 13 → 7 | 3,630 |
| 4 | 2L | 2R | 0 | 55 | 18 | 3 | A - Ice | 7 → 0 | 0 |
| Total | 7,920 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%9.9Flatter patterns score higher. 10:1 walls score 1, dead flat scores 10.
- Distance 25%6.439 to 41 ft is the playable band; longer and shorter both climb.
- Outside oil 20%7.4Oil on boards 3 to 7 takes away the miss room, measured from the load tables.
- Volume 10%6.320 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 2021-01-01. Pattern data from the Kegel Pattern Library, reproduced with credit to Kegel and USBC.

