I ended up running the race of my life, with a two-minute negative split and a second half of mile splits all under my goal pace of 8 minutes per mile. However, my finish time was 3:30:14. I finished ...

It is important to remember other angles rules, such as angles on a straight line add up to 180°, and to recognise angles in parallel lines. Make sure you are confident in applying Pythagoras’ theorem ...