| MLB Home Runs - April 20, 2009 | ||||||||
| NAME | HR | OPP | PITCHER | SITUATION | +/- | WIN % BEF | WIN % AFT | WIN % DELTA |
| M. Diaz | 2 | WSH | Zimmermann | Top 4: 0-2, 2 Outs. 1 on. | 0 | 45.0 | 67.8 | 22.8 |
| L. Berkman | 3 | CIN | Arroyo | Bot 6: 0-0, 2 Outs. None on. | 0 | 36.1 | 54.7 | 18.6 |
| C. Lee | 2 | CIN | Arroyo | Bot 6: 0-1, 2 Outs. None on. | 0 | 54.3 | 71.9 | 17.6 |
| M. Montero | 1 | SD | Marquis | Bot 5: 0-0, 2 Outs. 2 on. | 3 | 79.9 | 95.3 | 15.5 |
| J. Varitek | 3 | BAL | Hendrickson | Bot 2: 3-2, 0 Outs. None on. | 2 | 76.6 | 83.4 | 6.8 |
| M. Reynolds | 3 | SD | Marquis | Bot 2: 2-0, 0 Outs. None on. | 0 | 59.3 | 63.9 | 4.6 |
| N. McLouth | 4 | COL | Kensing | Bot 6: 0-0, 1 Out. 2 on. | 6 | 98.4 | 99.0 | 0.6 |
| I. Stewart | 3 | COL | Garland | Top 6: 1-1, 0 Outs. None on. | -5 | 4.9 | 4.9 | 0.0 |