The aim of the study was to analyse and compare the actual level of sprint ability in 10m, 30m and 50m from the point of view of playing positions of Slovak national under-21 football players U21 (N = 20, goalkeepers = 2, defenders = 4, midfielders = 8, forwards = 6) in time of qualification for European Under-21 Football Championship 2011. The level of sprint ability was measured with the device Fitro Light Gates (FiTRONIC, Bratislava, the Slovak Republic). The criterion of evaluation of the performance level was achieved time in distance of 10m, 30m and 50m from start from rest with accuracy 0.01s. Distance 10m, 30m and 50m was measured within one run. Differences in the level of sprint ability were determinated with special subject analysis. The level of sprint ability of the whole group in distance 10m was presented by average running time with the value 2.20±0.09s, in distance 30m with the value 4.59±0.09s and in 50m with the value 6.80±0.13s. In all measured sections (10m, 30m, 50m) there was recorded the highest average level of sprint ability by forwards (10m = 2.17±0.10s; 30m = 4.53±0.19s; 50m = 6.73±0.28s), then by midfielders (10m = 2.19±0.09s; 30m = 4.56±0.10s; 50m = 6.75±0.12s), by defenders (10m = 2.25±0.05s; 30m = 4.67±0.07s; 50m = 6.90±0.07s) and by goalkeepers (10m = 2.31±0.06s; 30m = 4.72±0.04s; 50m = 7.00±0.15s). The special subject analysis showed significantly better running time in the distance 10m by forwards and midfielders compared to goalkeepers. Significant differences were not noticed by defenders and other groups. In distance 30m and 50m was determined significantly better time by forwards and midfielders compared to defenders and goalkeepers. In distance 30m and 50m there were not noticed significant differences in time by defenders and goalkeepers. Significant differences were not noticed by forwards and midfielders too.
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