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Identifiers explained: NIN, Tournament ID and WTN

Updated 8 Oct 2026

There are three identifiers across the New Zealand tennis systems. Knowing which one is which helps avoid most duplicate-record confusion.

IdentifierIssued byWhat it's for
NIN (National ID Number)MatchPointYour national identity number in MatchPoint. It's used to sign in and to find members when searching or transferring them between clubs.
Tournament IDTournament softwareA separate identifier used only by the tournament platform.
WTN (World Tennis Number)ITFThe main identifier that links everything. It should be the same in the tournament software and in MatchPoint, and it builds up your match record for your rating.

Why your WTN matters

Both tournament results and MatchPoint results update your WTN record match by match. Having the same WTN in every system keeps your rating accurate.

If you think you have two records or your WTN looks wrong, contact your club administrator.

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