HS Girls’ 100m Start – 12.36 (Flipbook)

High school girls' 100m start 12.36.

Price: $2.99

HS Boys’ 100m Start – 10.72 (Flipbook)

Boys' 100m start flipbook.

Price: $2.99

Women’s 4x100m Relay (Flipbook)

Women's 400m relay exchanges.

Price: $2.99

Men’s 4x100m Relay (Flipbook)

Men's 400m relay exchanges.

Price: $2.99

HS Girls’ Mile Stride Comparison (Flipbook)

Girls' Mile Stride comparison.

This flipbook overlays two different stride patterns, at different points in a race, for the same runner.  Clearly shows the difference in stride angle.

Price: $2.99