As organic matter accumulates in high sand content root zones the proportion of macroporosity decreases. This decrease in macropore space can affect water movement within the root zone and decrease turfgrass rooting, leading to issues with turfgrass wear tolerance and performance. Many cultural practices can help prevent the problems caused by accumulated organic matter, but the factors contributing to accumulation are not clear. The objectives of this study were to evaluate organic matter accumulation based on root zone type and mowing practice. A secondary objective was to compare which organic matter analysis method (loss on ignition, Walkley-Black, and Mebius methods) produced the most consistent results on high sand content root zones containing small percentages of organic matter. The experiment was conducted at the