First-Class Batting and Fielding in Each Season by Graham Napier
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1997 | (England) | 2 | 2 | 2 | 39 | 35* | | 0 | 0 | 0 | |
| 1998 | (England) | 2 | 3 | 0 | 15 | 7 | 5.00 | 0 | 0 | 0 | |
| 1999 | (England) | 1 | 1 | 0 | 27 | 27 | 27.00 | 0 | 0 | 2 | |
| 2000 | (England) | 1 | 2 | 0 | 26 | 21 | 13.00 | 0 | 0 | 4 | |
| 2001 | (England) | 10 | 16 | 0 | 506 | 104 | 31.62 | 1 | 2 | 4 | |
| 2002 | (England) | 9 | 13 | 2 | 230 | 54* | 20.90 | 0 | 1 | 6 | |
| 2003 | (England) | 15 | 24 | 8 | 480 | 89* | 30.00 | 0 | 2 | 3 | |
| 2003-04 | (India) | 2 | 4 | 1 | 185 | 76 | 61.66 | 0 | 2 | 1 | |
| 2004 | (England) | 15 | 23 | 4 | 637 | 106* | 33.52 | 1 | 5 | 7 | |
| 2005 | (England) | 8 | 7 | 0 | 153 | 55 | 21.85 | 0 | 2 | 2 | |
| 2006 | (England) | 3 | 3 | 1 | 131 | 62 | 65.50 | 0 | 2 | 1 | |
| 2007 | (England) | 10 | 10 | 3 | 317 | 125 | 45.28 | 1 | 1 | 4 | |
| 2008 | (England) | 7 | 8 | 0 | 164 | 76 | 20.50 | 0 | 1 | 0 | |
| 2008-09 | (New Zealand) | 4 | 4 | 2 | 25 | 20 | 12.50 | 0 | 0 | 1 | |
| 2009 | (England) | 10 | 16 | 6 | 348 | 64* | 34.80 | 0 | 2 | 3 | |
| 2010 | (England) | 4 | 6 | 1 | 67 | 35 | 13.40 | 0 | 0 | 1 | |
| 2011 | (England) | 7 | 12 | 1 | 383 | 196 | 34.81 | 1 | 1 | 3 | |
| 2012 | (England) | 12 | 12 | 2 | 335 | 100* | 33.50 | 1 | 0 | 4 | |
| 2013 | (England) | 17 | 23 | 7 | 796 | 102* | 49.75 | 1 | 7 | 5 | |
| 2014 | (England) | 12 | 17 | 0 | 208 | 62 | 12.23 | 0 | 1 | 4 | |
| 2015 | (England) | 13 | 17 | 1 | 363 | 73 | 22.68 | 0 | 2 | 5 | |
| 2016 | (England) | 15 | 16 | 2 | 304 | 124 | 21.71 | 1 | 0 | 3 | |