I'll try that again

Date      High Tide      Height Date       High Tide   Height
Friday 6    13.19       4.4m    Friday 20    14.06    4.3m         
Saturday 7 14.32       4.7m    Saturday 21 15.05    4.5m
Sunday 8    15.32       5.0m    Sunday 22    15.50   4.7m         
Monday 9    16.22       5.3m    Monday 23    16.27 4.9m            

As you can see the maximum difference in the times of the high tide over the 4 days of racing is 47 minutes, the minimum is 5 minutes, the maximum difference in the actual height of the tide is 400mm. Now I am not a rower and there may be other considerations that I am not aware of, however I do hear every time there is a clash between regatta and folk week that it is the tides that determine when the regatta is held, on the above information I put my case, people may have more knowledge than I do and I would like to be made aware of considerations if they have an influence on determining regatta.

PS Joy of joys they clash again in 2012