There’s always a few times a season when a player has to get to the big leagues from the faraway reaches, scrambling to make a plane or a boat or buggy because of a last-minute need. Astros lefty Kevin Chapman woke up — sort of — at 3:45 P.T. on Friday in Fresno, Calif., where Class AAA Oklahoma City was playing. He caught a 5:50 a.m. PT flight to Denver, and landed in Boston around 4:30 p.m. E.T, so that he could fill in for hurt lefty Darin Downs. “I didn’t really wake up,” Chapman said. “I didn’t go to sleep.” This is the third stint in the big leagues for the 26-year-old this season. Chapman has dominated in Oklahoma City, with a 1.23 ERA and 64 strikeouts in 44 appearances. His big league time has been rougher, with seven runs allowed in 5 2/3 innings.