The San Francisco Giants failed to pad their NL wild-card lead when their usually reliable bullpen had its worst performance of the season. A four-game visit from Colorado that begins Monday night would appear to provide the ideal opportunity to get past that loss quickly - given the Rockies' recent road woes - but Colorado's only successful series away from home in the last four months was at AT&T Park. San Francisco (68-61) had a five-run lead after three innings Sunday in Washington but allowed the Nationals to zoom past for a 14-6 rout. The Giants' bullpen was charged with season highs of 11 runs and 14 hits in 2 2-3 innings after entering with a 2.57 ERA, third-best in the majors.