Finally found:
From BB-Charles:
By the way, here are some aggregate statistics, so that we can look at TiE/CT effects as a whole instead of individual examples. These are obviously not randomly-selected games, since teams attempt to choose TiE/CT for tactical reasons.
When both teams play TiE, the home team has a record of 417-277.
When the home team plays TiE against normal, it has a record of 829-826.
When the home team plays TiE against CT, it has a record of 104-200.
When the home team plays normal against TiE, it has a record of 1262-483.
When the home team plays normal against CT, it has a record of 703-759.
When the home team plays CT against TiE, it has a record of 265-38.
When the home team plays CT against normal, it has a record of 1171-357.
When the home team plays CT against CT, it has 205-107.
I did not include normal vs. normal, since those will be mostly bot games, but globally the home team edge is at around 63%.