30k Mock Race for Sub-3 Goal

I completed my final long-distance mock race aiming for a Sub-3 at the upcoming marathon. My target paces were 4:30 (10k) - 4:20 (10k) - 4:10 (5k) - 4:05 (5k). I was worried about whether I could hold on in the latter half, but I managed to endure well. I feel like my chances of achieving Sub-3 are now over 50%. I need to train hard during the remaining period.