No looking back!Welcome to the Runner's World race-week index. Whether you've been training for this all year, or you've just entered tomorrow's race after a drunken bet last night, we're here to do you proud.Frankly, the final week is a time
for a half-marathon; sub 38 minutes for 10K.Sub-3:15 Eventual standard: sub-1:30 for a half-marathon; sub 40 minutes for 10K.Sub-3:30 Eventual standard: sub-1:37 for a half-marathon; sub 43 minutes for 10K.Sub-3:45 Eventual standard: sub-1:45 for a