Related Clues:

• Racetracks
• Near circles
• Egg outlines
• Milers' tracks
• Picture frames lacking corners
• Toilet seats, e.g.
• Roundish shapes
• Many racetracks
• Imperfect circles
• Locket shapes
• Nascar circuits
• Faces, more or less
• Ellipsoids
• Flattened circles
• Racing forms?