If you want to go faster, feel stronger, and pass more people at the end of a race then you need to race negatively. I know it sounds a littler errrr, negative, but it is the key to a personal record. Let me explain. Racing negatively or negative splitting your races has been around for decades. Most all world records from 5k to the marathon are run with a negative split, as are most swimming world records. All ‘negative split’ means is to run the second half faster then the first half of a race.