366-7 Measuring Green Speed with Ios Devices.
Poster Number 517
See more from this Division: C05 Turfgrass ScienceSee more from this Session: Management of Turfgrass, Thatch, Soil and Irrigation
Stimpmeter measurements were recorded on putting greens at two different golf courses with medium and fast green speeds according to USGA green speed definitions. Stimpmeter readings were obtained with the three iOS devices and a USGA stimpmeter. A research stimpmeter, which is known to produce equivalent results to the USGA device, was also included.
The research stimpmeter produced similar green speed measurements compared to the USGA device when tested under medium and fast green speed conditions. The iPhone overestimated and the iPad underestimated stimpmeter readings on both medium and fast greens. The iPod touch produced similar stimpmeter readings on medium speed greens but overestimated on fast greens. Stimpmeter readings from iOS devices are different than the USGA stimpmeter under the majority of conditions and comparisons between the two are not valid.
See more from this Session: Management of Turfgrass, Thatch, Soil and Irrigation