But Saito walked Ryan Theriot to start the inning, Aramis Ramirez walked one out later and Kosuke Fukudome reached on an infield single to load the bases. Geovany Soto then drove in the tying run with a sacrifice fly to right.
The Cubs' Bob Howry (1-0) worked around a lead-off single in the 10th and became the winning pitcher when Chicago came through against Park (1-1).
Reed Johnson flew out to start the Chicago half of the inning, but pinch-hitter Mike Fontenot doubled to deep left. Soriano hit a 2-2 pitch to left for a single that brought in Fontenot.