1998-07-19 Mike Piazza CR WAA
| Rank | WAA | BA | OBP | PA | Rbis | Runs | Tm |
| +131+ | 1.22 | 0.282 | 0.329 | 161 | 30 | 21 | LAN |
| +131+ | 0.14 | 0.278 | 0.263 | 19 | 5 | 1 | MIA |
| +131+ | 0.47 | 0.335 | 0.396 | 192 | 20 | 31 | NYN |
| +131+ | 1.84 | 0.309 | 0.360 | 372 | 55 | 53 | TOT |
The line graph below shows daily WAA and Batting Average for reference. Fluctuation in batting average decreases as a season progresses. BA for pitchers is batting average against.
Mike Piazza 1998 Bi-Weekly Snapshots
Post Season Mike Piazza WAA
Mike Piazza Post Season Games
| Rank | WAA | BA | OBP | PA | Rbis | Runs | Tm |
| XXXXX | -0.04 | 0.25 | 0.269 | 26 | 3 | 2 | LAN |
| XXXXX | 0.51 | 0.256 | 0.33 | 97 | 13 | 12 | NYN |
| XXXXX | -0.22 | 0.1 | 0.1 | 10 | 0 | 0 | SDN |
| XXXXX | 0.25 | 0.242 | 0.301 | 133 | 16 | 14 | TOT |