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Table 3 Multi-level regression analyses for changes in cycling split times across years with correction for multiple finishes for the annual three fastest women and men

From: Performance and sex difference in ultra-triathlon performance from Ironman to Double Deca Iron ultra-triathlon between 1978 and 2013

Distance Sex ß SE (ß) Stand. ß T P
Ironman Female −1.816 0.226 −0.632 −8.026 < 0.001
Double Iron Female 0.985 1.320 0.093 0.746 0.458
Triple Iron Female 12.086 2.604 0.530 4.641 < 0.001
Quintuple Iron Female −135.778 102.897 −0.551 −1.320 0.257
Ironman Male −2.167 0.255 −0.636 −8.495 < 0.001
Double Iron Male −1.960 0.560 −0.355 −3.497 0.001
Triple Iron Male −6.017 1.563 −0.404 −3.849 < 0.001
Quadruple Iron Male −40.933 27.098 −0.431 −1.511 0.162
Quintuple Iron Male 32.680 13.618 0.554 2.400 0.032
Deca Iron Male −11.336 23.739 −0.090 −0.478 0.637