Both races side by side. Athletes who appear in both races are color-coded; single-race athletes are muted.

The same dimensions we measure for each race individually, paired so the difference is visible at a glance.

For runners who competed in both races, here's their performance profile in each. Amber highlights mark metrics that changed materially (different style code, different split class, or peak decline differing by >3 percentage points).

Energy distribution (% of total race time per segment) for the common athlete whose peak-decline differs most between the two races. Same runner, different race shape — the kind of contrast the framework was built to surface.

For each common runner, the per-100m segment times in both races. Cells with the larger of the two times (slower segment) are tinted red; smaller (faster) cells are tinted green. Tells you exactly where each runner ran faster or slower between the two races.