There are a maximum of 120 points available to score per series. But you get points for match wins as opposed to series to wins. And points available for a single Test victory vary in accordance with the length of the series.

Information, Analysis and Opinions on Cricket
There are a maximum of 120 points available to score per series. But you get points for match wins as opposed to series to wins. And points available for a single Test victory vary in accordance with the length of the series.
