I just received this response from Guiness. Matt, I am surprised you
are not listed. Did you receive a confirmation?

I may give this a go next Saturday.

Dear Mr Damian

Thank you for your enquiry regarding your intention to attempt the
record for 'MOST CHIN UPS IN ONE HOUR'.

We have attached our recommended guidelines for this attempt which
provides you with all the details you require to make your attempt.
You should ensure that all those participating are aware of the
contents of these guidelines, and your attention is drawn to the
authentication we require when you come to make your claim.

Our standard agreement form for record attempts is also enclosed and
must be signed by yourself and any other individual who may
contribute material as evidence (e.g. photos/videos). This must be
returned with the above documentation in order for us to consider
your claim. Please ensure that your claim ID number (above) is
clearly marked on your package and all documentation.

Once the record has been attempted and you have compiled your claim
and completed the standard record agreement form, they should be
sent to us here at:

GUINNESS WORLD RECORDS, 338 EUSTON ROAD, LONDON NW1 3BD, UNITED
KINGDOM

Once you know the exact date on which you'll be attempting your
record, please let us know by visiting the TRACKING section of our
website. Simply follow this link -
http://www.guinnessworldrecords.com/tracking -
and enter your membership ID and password. You will then be able to
alter the date of your attempt and confirm it by ticking the
checkbox.

Should you not have online access you can always contact us by post,
or telephone, quoting the appropriate membership numbers.

The current record is:
The record for the most chin ups in one hour is 512 and was set by
Stephen Hyland (UK) in Stoneleigh, Surrey, UK on 22 January 2005.

However, you may wish to check with us again closer to submitting
your full claim to be sure that a new record has not been set in the
interim.

If you should require any further information, please do let us
know, otherwise we hope that the event goes well and look forward to
hearing the results.

Yours sincerely,

Amanda Sprague
Records Research Services