Gillingham's matches tend to have very few goals scored in them due to Harris' safety-first approach, while Leyton Orient have failed to score in five of their seven matches so far this season.
As such, this looks like it will almost certainly be an extremely tight affair, with neither set of players likely to be throwing themselves into challenges ahead of important league fixtures at the weekend. We can envisage a goalless draw.
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Data Analysis
Our analysis of all available data, including recent performances and player stats up until an hour before kickoff, suggested the most likely outcome of this match was a Leyton Orient win with a probability of 36.69%. A win for Gillingham had a probability of 35.83% and a draw had a probability of 27.5%.
The most likely scoreline for a Leyton Orient win was 0-1 with a probability of 10.79%. The next most likely scorelines for that outcome were 1-2 (7.95%) and 0-2 (6.6%). The likeliest Gillingham win was 1-0 (10.63%), while for a drawn scoreline it was 1-1 (13%). The actual scoreline of 2-1 was predicted with a 7.8% likelihood.
0.19) 
-0.25) 
