Objectives: The purpose of the study was to quantify the positional movement patterns of professional Rugby Union players competing in the English Premiership. Design: A cross sectional design was used. Setting: Field based data collection of one professional rugby union club during six league matches. Participants: An incidental sample of 35 professional rugby players with an age range of 20-34 years. Method: Recordings of the positional demands, taken from ten image recognition sensors, were coded for the specified high (HI) and low intensity (LI) tasks. Work-to-rest ratios were also calculated. Statistical assessment used an independent groups one-way ANOVA with post-hoc Scheffe test. Results: For all HI and LI activities there were significant position-related differences (P<0.05). In HI activities there were a range of different post-hoc Scheffe outcomes. The Props sprinted 1±1 time during a game while the Outside Backs sprinted 14±5 times. There were fewer post-hoc differences for the LI activities. For example, the Props jogged 325±26 times and the Outside Backs jogged 339±45 times. There was no significant position-related difference in the work-to-rest ratios for the quantity of HI and LI activities (P>0.05). There was, however, a significant positional difference when comparing the work to rest ratio for time spent in HI and LI activities (P<0.05). The Loose Forwards had the least amount of recovery with a work to rest time ratio, in seconds, of 1:7.5 s. The Outside Backs had the most amount of recovery, 1:14.6 s. Conclusions: There were clear positional differences in the quantity and time spent in rugby specific demands. These differences are most obvious in the HI activities of the game and included position-specific differences within both the Forward and Backs units.