I just got the route for my century ride on September the 15-16 and was wondering if anyone could give me an idea on how hard the climbing may be?

Saturday 100 miles: start elevation 742, max elevation 938, Gain 1955

Sunday 65 miles: start elevation 754, max elevation 1027, Gain 1427

I have a 52/42 and 10 speed 12-28

I must admit, im not a good climber and was wondering how hard this may be?

Thanks