And apparently, when Maurice Greene ran a 9.82 in 1999, he covered the first 40 yards in 4.18 seconds. His splits were 1.69 for the first 10 meters (tied for the fastest ever), 1.00 for the second 10 meters (tied for the fastest ever), 0.92 for the third 10 meters and 0.86 for the fourth 10 meters. So he covered the first 30 meters in 3.61 seconds. Since 40 yards is 36.576 meters, we have to extrapolate the next 6.576 meters, and it comes out to 0.57 seconds. Total running time over 40 yards: 4.18 seconds.