If you run the 100 yards in 11.5 seconds how fast will your time be in the 100 meters?

Your time would be just about the same since a yard is 36 inches and a meter is 39.37 inches. 100 yards is 91.44m. With a time of 11.5 for about 90m, you are running on average 10m in about 1.28 seconds, making your 100m time about 12.78, given the same circumstances.