# 2025 U.S. Open (Pattern #4) — Oil Pattern

> Only compatible with ATLAS, ATLAS Walker or ATLAS Pro lane machines.

- **Distance:** 41 ft (Medium)
- **Ratio:** 1.6:1 (middle:outside oil)
- **Total oil:** 22.76 mL
- **Forward / Reverse:** 10.36 mL / 12.40 mL
- **Conditioner:** FIRE / ICE
- **Source:** kegel

## Oil per board (1 = left gutter … 39 = right gutter)

| Board | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oil | 0 | 720 | 720 | 720 | 720 | 0 | 0 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 0 | 0 | 720 | 720 | 720 | 720 | 0 |

## Machine load specs

### Forward

| Boards | Loads | Mics | Speed | Feet | Crossed | Oil µL |
|---|---|---|---|---|---|---|
| 2L–5L | 2 | 60 | 14 | 0.0–1.9 | 8 | 480 |
| 5R–2R | 2 | 60 | 14 | 1.9–5.8 | 8 | 480 |
| 8L–8R | 2 | 60 | 14 | 5.8–9.7 | 50 | 3000 |
| 2L–5L | 2 | 60 | 14 | 9.7–13.6 | 8 | 480 |
| 5R–2R | 2 | 60 | 14 | 13.6–17.5 | 8 | 480 |
| 8L–8R | 2 | 40 | 14 | 17.5–21.4 | 50 | 2000 |
| 2L–5L | 2 | 60 | 14 | 21.4–25.3 | 8 | 480 |
| 5R–2R | 2 | 60 | 14 | 25.3–29.2 | 8 | 480 |
| 8L–8R | 2 | 40 | 14 | 29.2–33.1 | 50 | 2000 |
| 2L–5L | 1 | 60 | 14 | 33.1–35.0 | 4 | 240 |
| 5R–2R | 1 | 60 | 14 | 35.0–36.9 | 4 | 240 |
| 2L–2R | 0 | 60 | 14 | 36.9–41.0 | 0 | 0 |

### Reverse

| Boards | Loads | Mics | Speed | Feet | Crossed | Oil µL |
|---|---|---|---|---|---|---|
| 2L–2R | 0 | 60 | 14 | 38.0–37.0 | 0 | 0 |
| 2L–5L | 1 | 60 | 14 | 37.0–35.1 | 4 | 240 |
| 5R–2R | 1 | 60 | 14 | 35.1–33.2 | 4 | 240 |
| 8L–8R | 2 | 40 | 14 | 33.2–29.3 | 50 | 2000 |
| 2L–5L | 2 | 60 | 14 | 29.3–25.4 | 8 | 480 |
| 5R–2R | 2 | 60 | 14 | 25.4–21.5 | 8 | 480 |
| 8L–8R | 2 | 40 | 14 | 21.5–17.6 | 50 | 2000 |
| 2L–5L | 2 | 60 | 14 | 17.6–13.7 | 8 | 480 |
| 5R–2R | 2 | 60 | 14 | 13.7–9.8 | 8 | 480 |
| 8L–8R | 4 | 60 | 10 | 9.8–4.2 | 100 | 6000 |
| 2L–2R | 0 | 60 | 10 | 4.2–0.0 | 0 | 0 |