Will women outrun men in ultra-marathon road races from 50 km to 1,000 km?

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Table 1 Multi-level regression analyses for changes in running speeds across years for the annual fastest and the annual ten fastest female and male runners (Model 1) with correction for multiple finishes (Model 2) and with correction for multiple finishes and age of athletes with multiple finishes (Model 3)

Distance	Model	β	SE ( β)	Stand. β	T	P
Annual fastest men
50 km	1	0.118	0.027	0.614	4.333	< 0.0001
	2	0.118	0.027	0.614	4.333	< 0.0001
	3	0.105	0.028	0.547	3.816	< 0.0001
100 km	1	0.077	0.014	0.640	5.705	< 0.0001
	2	0.077	0.014	0.640	5.705	< 0.0001
	3	0.084	0.014	0.696	5.953	< 0.0001
200 km	1	-0.125	0.046	-0.742	-2.711	0.035
	2	-0.125	0.046	-0.742	-2.711	0.035
	3	-0.125	0.050	-0.741	-2.469	0.057
1,000 km	1	-0.011	0.015	-0.181	-0.711	0.488
	2	-0.011	0.015	-0.181	-0.711	0.488
	3	-0.013	0.016	-0.217	-0.822	0.425
Annual fastest women
50 km	1	0.188	0.020	0.857	9.246	< 0.0001
	2	0.188	0.020	0.857	9.246	< 0.0001
	3	0.191	0.024	0.870	7.867	< 0.0001
100 km	1	0.101	0.013	0.780	8.068	< 0.0001
	2	0.101	0.013	0.780	8.068	< 0.0001
	3	0.095	0.009	0.728	10.850	< 0.0001
200 km	1	-0.166	0.045	-0.878	-3.663	0.022
	2	-0.166	0.045	-0.878	-3.663	0.022
	3	-0.168	0.062	-0.892	-2.701	0.074
1,000 km	1	-0.042	0.021	-0.580	-2.016	0.079
	2	-0.042	0.021	-0.580	-2.016	0.079
	3	-0.046	0.022	-0.636	-2.084	0.076
Annual ten fastest men
50 km	1	0.155	0.009	0.707	18.123	< 0.0001
	2	0.155	0.009	0.707	18.123	< 0.0001
	3	0.145	0.009	0.663	16.966	< 0.0001
100 km	1	0.063	0.003	0.656	18.195	< 0.0001
	2	0.063	0.003	0.656	18.195	< 0.0001
	3	0.063	0.003	0.663	18.365	< 0.0001
200 km	1	0.007	0.069	0.013	0.102	0.919
	2	0.007	0.069	0.013	0.102	0.919
	3	0.036	0.069	0.068	0.517	0.607
1,000 km	1	-0.027	0.014	-0.334	-1.877	0.071
	2	-0.027	0.014	-0.334	-1.877	0.071
	3	-0.026	0.015	-0.321	-1.759	0.090
Annual ten fastest women
50 km	1	0.176	0.008	0.822	22.702	< 0.0001
	2	0.176	0.008	0.822	22.702	< 0.0001
	3	0.178	0.008	0.828	22.229	< 0.0001
100 km	1	0.091	0.005	0.670	16.845	< 0.0001
	2	0.091	0.005	0.670	16.845	< 0.0001
	3	0.091	0.005	0.672	17.598	< 0.0001