Row / Ball Slams

I have a competition coming up. I didn't want to smoke myself, but I wanted a long WOD.

1k Row
50 ball Slams 20# ball
1k Row
40 ball Slams
1k Row
30 ball Slams
1k Row
20 ball Slams
1k Row
10 ball Slams

Didn't work. 5k worth of rows is a lotta f'n rows!