Precision: 1.0
Recall: .89
F1: .94

Set of Rules
-------------
Feature: exactNameMatch
  theGamesDb.name == MobyGames.name
Feature: normalizedTimestampDifference
  (theGamesDb.timestamp - MobyGames.timestamp) / min(theGamesDb.timestamp, MobyGames.timestamp)
Feature: jaccardName
  (theGameDb.name, MobyGames.name, JACCARD)
  
Rule: exactNameMatchRule
  exactNameMatch == 1.0
Rule: approxDateAndJaccardName
  normalizedTimestampDifference <= .0003 (about 4 days)
  jaccardName <= .3

Matcher:
  exactNameMatchRule OR approxDateAndJaccardName
  
Estimated number of hours reaching these rules: 12 hours