Now do the Marlins against the Mets.
*bang*
Huh...
Marlins vs. Mets: 6-3, .667 winning percentage
Marlins vs. everyone else: 13-36, .265 winning percentage
And while we're at it, other interesting splits:
Brewers vs. Cubs: 4-1, .800
Brewers vs. everyone else: 17-34, .333
Jays vs. Yankees: 1-8, .111
Jays vs. everyone else: 23-25, .479
Yankees vs. Jays: 8-1, .889
Yankees vs. everyone else: 24-24, .500
Tigers vs. Astros: 6-1, .857
Tigers vs. everyone else: 24-24, .500
Indians vs. Red Sox: 1-6, .143
Indians vs. everyone else: 29-23, .558
Rangers vs. Mariners: 7-3, .700
Rangers vs. Astros: 5-1, .833
Rangers vs. everyone else: 23-17, .575
As vs. Astros: 9-0, 1.000
As vs. everyone else: 26-24, .520
Padres vs. Rockies: 0-6, .000
Padres vs. everyone else: 26-25, .510
Rockies vs. Padres: 6-0, 1.000
Rockies vs. everyone else: 24-28, .462
Cubs vs. Reds: 2-7, .222
Cubs vs. everyone else: 21-25, .457
Reds vs. Cubs: 7-2, .778
Reds vs. Marlins: 6-1, .857
Reds vs. everyone else: 23-19, .523
Nationals vs. Marlins: 5-1, .833
Nationals vs. everyone else: 23-28, .451
(though on the flipside...
Nationals vs. Braves: 3-7, .300
Nationals vs. everyone else: 25-22, .532)