Second Axes labels not working

Hello community,
I have a quick question about axes labels.
I’m using parameters to generate a quickhchart and here’s my url (,s,00000000&chd=t:84,79,91,83&chds=62,99&chtt=Improvement+Over+Time&chxr=0,62,99&chxt=y,y,x,x&chxl=1:|WPM|2:|1|2|3|4|3:|Race+Number)

As you can see in the chart, WPM and Race Number are placed in wrong place. I want it to look like this.


Please let me know what I need to edit from the url.