Does Martin use the wrong numbers?

In the private blog he is talking:

"In gold, Friday's closing was admirable at 1289.7, but not good enough." (may 6th)

But the closing numer is 1294.0
This was also shown in his market watch an here on the comex dates
http://www.cmegroup.com/trading/metals/p.../gold.html

What is going on here?

I realised on an other chart that the close of the last hour of a trading session is different than the day closing. Is a closing of the end of the week maybe different than on friday?

An other one:
He also posted on may 6th:
"Last week's closing was 1285.60" --> for gold nearest futures
But it was 1290.5 shown in the comex http://www.cmegroup.com/trading/metals/p.../gold.html

iam realy confused