Table 2.

Multilevel regression analyses for changes across years in swimming, cycling, running, and overall race times with correction for multiple finishes

	Sex	β	SE (β)	Stand β	T	P-value
Swimming
Ironman	Female	−0.26	0.08	−0.46	−3.01	0.005
Double iron	Female	−0.56	0.64	−0.17	−0.87	0.38
Triple iron	Female	−0.99	0.83	−0.24	−1.18	0.24
Quadruple iron	Female	−30.50	12.41	−0.92	−2.45	0.24
Quintuple iron	Female	−4.94	3.74	−0.60	−1.32	0.27
Deca iron	Female	−17.37	8.54	−0.67	−2.03	0.09
Ironman	Male	−0.25	0.09	−0.42	−2.73	0.01
Double iron	Male	0.04	0.42	0.02	0.11	0.90
Triple iron	Male	0.54	0.69	0.15	0.78	0.43
Quadruple iron	Male	−9.74	11.17	−0.45	−0.87	0.44
Quintuple iron	Male	5.45	2.27	0.73	2.40	0.06
Deca iron	Male	8.89	6.58	0.39	1.35	0.206
Cycling
Ironman	Female	−2.10	0.36	−0.71	−5.79	<0.001
Double iron	Female	−0.84	1.70	−0.09	−0.49	0.62
Triple iron	Female	6.02	5.15	0.24	1.16	0.25
Quadruple iron	Female	−234.50	358.82	−0.54	−0.65	0.63
Quintuple iron	Female	10.88	26.27	0.23	0.41	0.70
Deca iron	Female	133.97	120.79	0.44	1.10	0.31
Ironman	Male	−1.86	0.36	−0.65	−5.08	<0.001
Double iron	Male	−1.54	0.81	−0.34	−1.88	0.07
Triple iron	Male	−4.59	1.72	−0.47	−2.66	0.01
Quadruple iron	Male	−36.63	12.51	−0.86	−2.92	0.06
Quintuple iron	Male	18.41	8.80	0.68	2.09	0.09
Deca iron	Male	62.44	40.72	0.43	1.53	0.15
Running
Ironman	Female	−1.75	0.32	−0.68	−5.38	<0.001
Double iron	Female	−2.61	2.80	−0.18	−0.93	0.36
Triple iron	Female	−15.09	5.51	0.50	2.73	0.01
Quadruple iron	Female	−135.00	311.76	−0.39	−0.43	0.74
Quintuple iron	Female	46.35	8.50	0.95	5.45	0.01
Deca iron	Female	85.37	35.78	0.73	2.38	0.06
Ironman	Male	−0.93	0.20	−0.61	−4.59	<0.001
Double iron	Male	−3.25	1.04	−0.51	−3.12	0.004
Triple iron	Male	−0.83	2.31	−0.07	−0.35	0.72
Quadruple iron	Male	8.68	37.83	0.13	0.23	0.83
Quintuple iron	Male	43.76	21.54	0.67	2.03	0.09
Deca iron	Male	3.47	48.80	0.02	0.07	0.94
Overall
Ironman	Female	−3.90	0.68	−0.70	−5.66	<0.001
Double iron	Female	−3.66	4.03	−0.17	−0.90	0.37
Triple iron	Female	20.23	9.29	0.42	2.17	0.04
Quadruple iron	Female	−401.00	682.42	−0.50	−0.58	0.66
Quintuple iron	Female	55.49	39.25	0.63	1.41	0.25
Deca iron	Female	201.96	117.33	0.61	1.72	0.14
Ironman	Male	−2.90	0.60	−0.63	−4.83	<0.001
Double iron	Male	−4.54	1.65	−0.46	−2.75	0.01
Triple iron	Male	−4.93	3.12	−0.30	−1.58	0.12
Quadruple iron	Male	−37.74	26.53	−0.63	−1.42	0.25
Quintuple iron	Male	69.53	25.85	0.76	2.69	0.04
Deca iron	Male	78.95	67.18	0.34	1.17	0.26

Abbreviations: b, regression coefficient; SE (b), standard error of regression coefficient; Stand b, standardized regression coefficient.