Blog101 and 102 matches in CAT tools – what are these percentages?

101 and 102 matches in CAT tools – what are these percentages?

Confused by 101 and 102 matches in your CAT tool? Read this to understand what your translation memory is up to with these odd percentage matches.

Vova Zakharov is a developer, AI experimenter, writer, and former Smartcat editor-in-chief with 22 years of background as a translator, editor, and copywriter. He writes about language technology, AI tooling, localization, and content workflows.

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When going through a translation memory, a CAT tool may identify some segments as having 101% or 102% matches. Although this looks weird, it is not an error: A 102% match means that not only the current segment is identical to the one stored in the TM, but also the segments before and after it. Respectively, a 101% match means that either the preceding or subsequent segments are identical. Together, these two segments before and after any given segment are referred to as its context.

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Kacie Saxer-Taulbee
Edited by
Kacie Saxer-Taulbee

Kacie Saxer-Taulbee is Director of Growth at EverQuote and a data-informed content leader with a background in high-scale B2B SaaS, legal tech, and insurtech. As former Director of Content and Strategic Brand at Smartcat, she led global storytelling efforts connecting thought leadership with AI-powered localization and multilingual communication.

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Nicole DiNicola
Reviewed by
Nicole DiNicola

Nicole DiNicola is Senior Director of Product Marketing at Progress Software and a high-performing, empathetic global marketing leader with over 15 years of experience in B2B technology. She previously served as Global VP of Marketing at Smartcat, leading global marketing strategy, growth, and enablement for AI-powered content and localization solutions.

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This explainer is written by our localization team, edited for clarity, and reviewed by a Smartcat solutions engineer before publishing. We update it as terminology and tooling evolve.

  • Written and reviewed by localization practitioners
  • Reviewed for technical accuracy by a Smartcat solutions engineer
  • Updated as terminology, tooling, and best practice evolve
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