上垒率计算器公式

## How On-Base Percentage Is Calculated

### Formula

**OBP = (Hits + Walks + HBP) / (At Bats + Walks + HBP + Sac Flies)**

OBP measures how often a batter reaches base. It is considered more valuable than batting average because it accounts for walks and hit-by-pitches.

### Benchmarks

- **.300**: Below average
- **.340**: League average
- **.370+**: Very good
- **.400+**: Elite

计算示例

75 hits, 30 walks, 3 HBP, 250 at-bats, 4 sacrifice flies.

  1. Times on base = 75 + 30 + 3 = 108
  2. Plate appearances = 250 + 30 + 3 + 4 = 287
  3. OBP = 108 / 287 = 0.376