Appearance
Diamond and Base Paths
The diamond represents the four bases arranged in a rotated square. Home plate is at the bottom, first base at the right, second base at the top, third base at the left.
How base paths work
When a runner moves between bases, a thick line (polyline) is drawn connecting the bases they touched. The path shows where every runner went during the play.
- Reached base: path drawn from home plate to the base reached
- Advanced on another play: path extends from current base to the next
- Scored: path goes all the way around back to home plate
- Out on the bases: path is truncated at the midpoint between the last two bases, with a numbered out marker
Home run
The entire diamond is filled solid black with "HR" in white centered text. No base paths are drawn. The fill itself represents the complete circuit around the bases.
Scored runner (hatch lines)
When a runner scores on a play that is not a home run, the diamond shows exactly 3 diagonal hatch lines instead of a solid fill. Introduced in v0.9.0 to replace the previous grey fill.
The lines are:
- Drawn at 45 degrees (bottom-left to top-right)
- Evenly spaced (R x 0.5 apart)
- Clipped to the diamond boundary using an SVG clip path
- Same stroke weight as the base paths
All scored runners except home runs get hatch lines. Home runs stay solid black.
Hash marks for hits
Short perpendicular lines drawn across the home-plate-to-first-base segment. The number of hash marks tells you the type of hit:
| Hit | Hash marks |
|---|---|
| Single (1B) | 1 hash mark |
| Double (2B) | 2 hash marks |
| Triple (3B) | 3 hash marks |
Each hash is perpendicular to the 45-degree HP-1B path, centered at evenly spaced intervals along the segment.
Out markers
When a runner is retired on the bases:
- The base path is drawn only to the midpoint between the last two bases (truncated)
- A numbered circle (1, 2, or 3) marks where the out occurred
- The number indicates which out of the inning it was
Each out number appears exactly once per inning across all cells. In a double play, the batter's cell shows only the batter's out. The other runner's out appears in their own cell.