Half-marathoners are younger and slower than marathoners

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Table 10 Sex difference (%) in running speed in age group half-marathoners

Year	18–24	25–29	30–34	35–39	40–44	45–49	50–54	55–59	60–64	65–69	70–74	75–79	80–84	85–89
1999	1.4	−0.8	1.7	3.0	2.8	2.2	6.3	3.0	−1.3	−3.9	−11.1	−2.3		−49.0
2000	3.5	0.7	1.1	3.7	3.3	0.3	1.6	2.9	9.4	4.4	10.4	−7.2
2001	−1.1	3.0	0.6	2.4	2.8	−0.7	0.4	0.8	2.0	−0.8	−11.1	12.8
2002	−0.2	2.9	4.0	3.9	1.3	0.5	3.1	0.7	0.4	3.3	6.3	1.5	2.2
2003	1.2	1.5	2.3	1.7	−1.6	3.5	2.5	1.5	5.3	6.7	7.4	13.7
2004	1.7	3.4	1.3	2.6	0.8	0.3	2.7	1.3	−1.3	−2.8	15.0	−2.4	5.0	13.5
2005	−3.7	0.5	1.4	1.6	1.1	1.1	−0.6	−1.8	0.1	1.2	−2.3	21.8	1.5
2006	−0.9	−2.2	0.1	2.5	−0.06	0.9	0.7	0.09	−1.8	−3.1	11.7	−25.2
2007	−0.8	−0.2	−0.6	1.1	−3.2	−0.8	−0.6	0.2	−1.4	−1.7	−11.8	−0.6	−7.9	−22.7
2008	−0.2	−0.8	1.6	1.6	−0.6	1.4	−0.7	−0.7	−1.0	2.6	3.1	−0.2	−34.2
2009	−0.4	−0.1	1.9	0.03	0.6	1.5	1.1	2.1	0.9	3.3	3.8	28.9	−22.4
2010	0.5	0.7	2.4	0.03	1.2	−0.5	1.7	0.7	1.2	4.2	3.4	−10.4	−9.3
2011	−0.8	0.9	1.5	1.6	1.5	1.3	−1.4	1.2	0.1	5.8	−6.2	−7.3	9.2
2012	2.4	−1.1	2.3	0.4	0.8	0.5	0.5	2.8	0.4	3.6	0.7	2.1	−11.6	7.9
2013	1.5	1.5	−0.3	−0.4	0.4	−0.1	0.4	0.4	1.7	−0.6	4.1	−3.1	−3.4
2014	0.5	−0.0	0.1	0.1	−0.02	−0.1	−0.5	−0.2	0.01	1.1	0.07	−9.0
r²	0.001	0.08	0.06	0.73	0.145	0.06	0.39	0.07	0.08	0.04	0.0001	0.02	0.05	0.44
p	0.89	0.26	0.34	<0.0001	0.14	0.33	0.0092	0.31	0.27	0.42	0.97	0.55	0.51	0.33