47 players are tied for the best batting average for the Cubs in a month, with an average of 1.000. The first three are Randy Rosario in July 2018, Mike Montgomery in May 2018 and Steve Cishek in April 2018.
| NAME | AVG | MONTH | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | R. Rosario | 1.000 | July 2018 | 9 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 2 | | M. Montgomery | 1.000 | May 2018 | 11 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 3 | | S. Cishek | 1.000 | April 2018 | 11 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 4 |  | J. Báez | 1.000 | October 2017 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 5 | | R. Zastryzny | 1.000 | September 2017 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 6 | | H. Rondon | 1.000 | September 2017 | 8 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 7 | | M. Montero | 1.000 | October 2016 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 1.000 | 4.000 | 5.000 |
| 8 | | T. Wood | 1.000 | August 2016 | 14 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 9 | | D. Roach | 1.000 | June 2015 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 10 | | B. Schlitter | 1.000 | June 2014 | 15 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 11 | | A. Cardenas | 1.000 | July 2012 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 12 | | C. Coleman | 1.000 | June 2012 | 7 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 13 | | A. Miles | 1.000 | October 2009 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 14 | | J. Samardzija | 1.000 | September 2009 | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 1 | 1 | 0 | 0 | 0 | 1.000 | 4.000 | 5.000 |
| 15 | | S. Marshall | 1.000 | May 2008 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 16 | | K. Fukudome | 1.000 | March 2008 | 1 | 3 | 1 | 3 | 1 | 0 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 4 | 7 | 2 | 0 | 0 | 0 | 0 | 1.000 | 2.333 | 3.333 |
| 17 | | S. Marshall | 1.000 | September 2007 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 18 | | J. Mabry | 1.000 | October 2006 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 19 | | C. Marmol | 1.000 | September 2006 | 4 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 1.000 | 4.000 | 5.000 |
| 20 | | R. Hill | 1.000 | July 2006 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1.000 | 2.000 | 3.000 |
| 21 | | B. Howry | 1.000 | June 2006 | 12 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 22 | | W. Ohman | 1.000 | May 2006 | 13 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 23 | | B. Grieve | 1.000 | July 2005 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 24 | | C. Bartosh | 1.000 | April 2005 | 7 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
| 25 | | C. Zambrano | 1.000 | October 2004 | 1 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 2.000 |
StatMuse has game-level data for batting average going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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