I had a Saturday once when I worked 8 kids rec games at three different venues. Of course, they were within about 20 minutes of each other. I started at 8:00 in the morning and finished the last game at 10:15 at night. Oh yeah, I had time for lunch and dinner breaks, too.
If I remember correctly, I earned $22 ea. for three of them, $27.50 ea. for two and $30.00 ea. for the last three for a total of $211.00. After paying for two meals and gas I netted about five bucks.