Hideki Matsuyama faltered on back nine, squandering a strong early half of an opening round that included a eagle and finishing with a 1-over 71 that left him tied for 20th place at the season-ending Tour Championship here Thursday.Hideki Matsuyama faltered on back nine, squandering a strong early half of an opening round that included a eagle and finishing with a 1-over 71 that left him tied for 20th place at the season-ending Tour Championship here Thursday.