Enter the structure clues you can identify. The tool will eliminate impossible corrective patterns and rank what remains.

Analysis Degree Choose whether you are labelling the whole visible correction or drilling into one leg. This affects how the results are framed.
Context Some corrective patterns are more likely in certain higher-degree positions. Triangles are common in wave 4, wave B, and penultimate positions, but not in wave 2.

If unsure, leave as Unknown — context adjusts probability but does not eliminate on its own.

Leg Structure The internal count of each visible leg is the strongest eliminator. A 5-wave first leg rules out flats. A 3-wave first leg rules out zigzags.
Leg 1 (Wave A)
Leg 2 (Wave B)
🔍 Leg 2 internal sub-degree analysis

If Leg 2 (B-wave) is still forming or you can see its internal structure, fill this in. The tool will evaluate what is forming inside Leg 2 separately from the whole structure.

Leg 3 (Wave C)
Behaviour Clues Overlap, sideways movement, contraction, and swing count help distinguish flats, triangles, and combinations from sharper zigzag-type corrections.

Sharp often supports zigzag. Sideways supports flat, triangle, or WXY.

Supports expanded or running flat behaviour.

One of the strongest clues for a triangle.

Higher swing counts support triangles and combinations over simple ABC patterns.