ha-ha-ha...
No one noticed...
But the data points for an "average player" are not
+50, +30, +20, -11, -11, -11, -11, -11, -11 = +23
But actually
+39, +19, +9, -11, -11, -11, -11, -11, -11 = -10
If an "average player" plays 10 $11 SNGs...
He breaks even against the other...