These all look right to me. Depends if you're a speed or endurance based runner. Could see a sub-4 1500 being on the table. The 6x1k & 10x1k are pretty close 5k/10k predictors. Could see something closer to 14:30 for the 5k. 30:30 is fair for the 10k. It's usually a little easier to rip 1k reps than 2k-3200 reps at the same pace. 30:30-31:00. Would be more cautious in the longer race. Nothing wrong with going out in an even 15:30 & picking it up if you're feeling good.