Sources

Scorecards are downloaded from multiple sources. For each of these I keep track of the number of scorecards downloaded, the number of matches involving this source that have discrepancies (although not necessarily caused by this source), and the number of scorecards from this source determined to be incorrect. I also calculate the percentage of mismatched matches the source is involved in that they are to blame for (at least in part).

Source Scorecards
Downloaded Mismatched Incorrect Incorrect %
Big Bash 120 16 6 37.50
Cricingif 33 11 6 54.55
CricketArchive 591 111 19 17.12
ECB 126 33 12 36.36
ESPNcricinfo 591 111 32 28.83
ICC 158 40 24 60.00
IPL 60 1 0 0.00