• unseeded
• major_test
• shotmakers_test
• bombers_park
• wind_exposed
• resort_birdiefest
• stadium

X-axis: field-average SG vs par (lower = harder course relative to the field). Y-axis: round-to-round variance (higher = more leaderboard chaos). Dots are color-coded by archetype where seeded. v3 ships the feature-space scatter; a true UMAP / t-SNE projection lands with the Phase 8 follow-up.