Contaminated mocks · One-play rule · May 2026
Updated
Ignore an AI Listening practice band when the sitting was not one-play, not timed, or not transferred under test rules — the number is a different sport. Keep the miss list (spelling, maps, multi-answers). Do not compare that band to last week’s clean mock or to a hoped-for TRF. This page is not “how BAND9AI scores Listening”; it is when to throw the overall number away.
Part of the IELTS Listening Guide: every listening trap, band descriptor and practice drill in one place.
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Official Listening is one play (plus the example and transfer time as on that paper). Pausing, looping a name, and extra minutes inflate accuracy. The item tags can still be true.
| Output | Keep? | Why |
|---|---|---|
| Overall practice band | No if contaminated | Not comparable |
| Miss types | Yes | Still your leaks |
| Clean timed sit | Yes, as a trend | Same rules as last clean sit |
If yes, discard the band; keep two miss examples.
Same.
A single Section 1 9.0 is not a Listening profile.
Do not average dirty and clean bands.
The criteria and score bands on this page follow the public IELTS documents below. Band9AI is independent and not affiliated with the British Council, IDP or Cambridge.
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Reading helps you understand the problem. A timed mock shows how it affects your band, one IELTS criterion at a time.
Free 2-min band diagnostic →| Tool | Timed four-skill mock | Score for each criterion | Action |
|---|---|---|---|
| ChatGPT / Copilot / Gemini | No | Chat only | N/A |
| Free IELTS practice sites | Partial / untimed | Limited or none | N/A |
| Band9AI | Yes: Listening, Reading, Writing, and Speaking | Yes, based on the public IELTS band descriptors | $15 Reality Check → |
Score Listening on keys, not on how easy the audio felt.
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