b) World Championship - Berlin 2009
Distance [m]	Mean time [s]*	Mean time [s]**	Total time	Mean velocity [m/s]	Total velocity [m/s]	Number of strides	20 m Section	Total	Stride length [m]	Each 20 m	Stride frequency [Hz]	Each 20 m
0–10	1.89	1.90	1.90	5.26	5.26	7	11.2	11.2	1.43	1.78	3.68	3.89
10–20	0.99	0.98	2.88	10.20	6.94	4.2			2.38		4.28
20–30	0.90	0.92	3.80	10.87	7.90	4.0	7.9	19.1	2.50	2.52	4.35	4.54
30–40	0.86	0.83	4.63	12.05	8.64	3.9			2.56		4.70
40–50	0.83	0.84	5.46	11.90	9.16	3.8	7.5	26.6	2.63	2.67	4.64	4.49
50–60	0.82	0.82	6.29	12.19	9.53	3.8			2.63		4.63
60–70	0.81	0.82	7.11	12.19	9.84	3.7	7.2	33.8	2.70	2.77	4.51	4.49
70–80	0.82	0.81	7.92	12.34	10.10	3.5			2.86		4.32
80–90	0.83	0.83	8.75	12.05	10.28	3.4	7.0	40.8	2.94	2.85	4.10	4.23
90–100	0.83	0.83	9.58	12.05	10.44	3.6			2.77		4.34

^*IAAF official data

^**Data from VirtualDub