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Each of the 2 matches below has been manually charted by brian, offering insights
into two players' serve, return, and rally tendencies.
Click here for a breakdown of all charted matches, sorted by player.
Want to chart matches yourself and help improve tennis analytics? Click here to find out how.
2014-01-21 Dubai QF: Serena Williams vs Jelena Jankovic (WTA)
2011-06-14 Wimbledon R64: Venus Williams vs Kimiko Date Krumm (WTA)