As a service to other instructors, I pass along this technique for grading exams. Thanks to Doug for the pointer.

Co-blogger Bob seems to be doing fairly well slogging through the Boston Marathon's awful conditions. At the 30k mark, he's on a 3:15 pace, less than 5 minutes off his qualifying time. Updates are here. (NB--if my link doesn't pull up Bob's progress just enter his bib number (6252).)

UPDATE: Bob hit the 35k mark 25 seconds off the 3:20 pace required for him to qualify for next year's race. Looks like he'll have a close call. Stay tuned.

UPDATE 2: Bob finished in 3:29.