A mobile transceiver device comprises a GPS receiver module to receive GPS signals and calculate current positions. yAlQj3-j\u2003\u2003wherein T is chlorine, bromine, or iodine; R\u2033 is a linear or branched C1-C10 alkyl radical; y ranges from 1. Therefore the present invention enables execution of applications on network-based computer systems thereby enabling flexible distribution and use of executable code over a network. A computing device coupled to timing equipment, storage, and a display operate to gather and store timing data from each heat, compare the timing data to generate comparative timing data, and present the comparative timing data to attendees.