You want to arrive at the starting line well trained, not overtrained. Run those long runs at a more comfortable pace, and save race pace for other days of the week, or for the marathon itself.
What Pace for Long Runs? : r/Marathon_Training
How to run the long run - Read here! - Inspiration
How to train for a Half Marathon Part 2: Peaking – HIGH5
What Pace Should I do My Long Runs at? – Running Department
Should You Be Doing Race Pace Long Runs? - Women's Running
Ultimate Guide: Pacing the Long Run – Run Away From Zombies
Race Pace Analysis - based on FP2 : r/formula1
Marathon workout: the race simulation long run - Canadian Running Magazine
Hal Higdon on X: Do long runs 30-90 seconds or more slower than race pace. Running long at race pace is self-destructive. Even the Kenyans don't do fast long runs. A survey
The long run's role in endurance training - Canadian Running Magazine
What Pace Should You Run On Easy Long Runs? - RUN
Should You Run Longer Than Race Distance in Training?
Is It OK to Split Up My Long Runs? - The Mother Runners
Long Run Pace: What should mine be?
Running Faster vs. Running Longer, Fitness and Cardio Benefits