Half-marathoners are younger and slower than marathoners

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Table 11 Sex difference (%) in running speed in age group 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
1999	1.3	3.1	0.4	−1.6	4.3	−2.2	9.9	−13.3	10.4		−7.7	−59.1
2000	−37.8	5.7	6.2	0.8	0.4	8.2	−0.6	2.2	−14.5	−40.4	28.0	19.9
2001	−14.1	−1.8	2.5	−1.3	0.1	9.1	3.4	14.0	−9.5	−14.4	−16.7		−0.6
2002	−6.5	−2.6	−0.6	5.1	4.7	−0.3	5.1	−5.1	−17.4	−0.6	−13.6
2003	11.4	−3.8	2.5	8.6	5.0	3.1	1.1	−6.6	8.7	10.5	−17.1	56.9
2004	5.2	4.3	−0.4	6.6	9.4	3.4	−1.1	5.8	12.1	−2.1	30.3	−55.3
2005	−3.4	4.6	6.6	−2.2	1.9	3.0	−0.8	9.2	6.1	10.3	−27.8
2006	4.9	−2.9	5.5	−1.2	2.2	2.4	4.3	8.2	2.2	2.6	−24.9	15.8
2007	1.5	4.5	1.6	1.2	4.9	5.1	1.6	4.2	−5.8	−1.1	5.6	−44.4
2008	−2.9	−4.2	1.6	1.9	0.1	3.3	0.9	4.0	−0.5	1.2	15.1	−16.4	−18.7
2009	1.8	1.3	4.5	1.3	1.8	1.2	3.3	5.9	4.4	−1.9	−1.5
2010	−5.8	−7.3	−1.2	1.4	0.4	1.3	10.1	7.2	8.3	2.3	−32.6	45.1
2011	0.2	−2.4	2.6	0.9	2.1	−2.0	7.2	2.3	−0.1	−1.8	13.1	21.4
2012	4.4	−5.6	−0.6	−2.7	5.9	−1.4	5.6	−3.6	10.1	−13.3	−7.8	13.6
2013	5.5	0.5	2.3	2.4	5.3	0.1	4.7	0.3	−0.6	−11.5	18.4	43.0
2014	−2.4	4.6	−0.5	−3.2	0.1	−3.1	3.0	6.5	8.8	2.6	−9.1
r²	0.15	0.05	0.05	0.05	0.006	0.28	0.04	0.05	0.12	0.06	0.0009	0.16	1
p	0.13	0.37	0.36	0.36	0.76	0.033	0.45	0.39	0.18	0.37	0.91	0.21