100m Breaststroke

By: Sarah Dubey

The Breaststroke

The breaststroke originated in the Stone Ages. It was the original way of swimming, resembling the way of a frog. The first Olympic breaststroke event took place at the 1904 Summer Olympics in St. Louis, Missouri. It has changed over many years, but this technique includes the swimmer laying face down in the water, with arms extended straight forward and legs straight backward.


My goal is to gather the fastest Olympic times for men and women in the past 40 years (10 Olympic games). Using these times, I will find the regression of men and women. I will put the information into a graph, and using the lines of best fit, I can find the year that women's times may be faster than men's.

Scatter Plot

Squares represent male swimmers and X's represent female swimmers.

Linear Regression

These are the lines of best fit, or trend lines. The red line represents the trend between females' times. The blue line represents the trend between males' times.
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The Intersection

The intersection of these lines shows that women might have faster times than men in 2229, and that those times will be around 30.34 seconds. Since 2229 will not be an Olympic year, this would occur in the Summer Olympics of 2232.

The X Coordinate

The X coordinate represents the year. It is the independent variable.

The Y Coordinate

The Y coordinate represents the time in seconds. It is the dependent variable.