Both teams hit lefties well, but slight 3 game W/L edge to San Diego. Richard in his last 5 games vs. the Rockies hasn't given up more than 3 runs and struck out 10 in the last matchup, whereas Francis got knocked around for 8 runs the last time he saw these same Padres in June.
The one thing that scares me a bit is Colorado's record at home is an impressive 31-15.