I had a boy go from 2:01 to 1:52 last year. He is a great all around athlete. He's currently captain of our soccer team and can 2 hand dunk a basketball. He ran cross this year and managed 16:3x on the Woodward park 5k course. The goal this year is to go sub 1:50, and hopefully faster. To do this, we're planning to pretty much do what worked last year and add a little more off season (soccer season) running volume. This shouldn't be tough to do, as we've gone to an 8:30 start time in CA AND my varsity cross country boys all had 1st period as an "unscheduled" period. So, he can easily work in a little more volume in the mornings.
Last year, he came straight from soccer and opened his season with a 1:58.6 after about 10 days with the track team. He then went
1:56.4 (mid march)
48.8 relay split (late march)
1:54.01 (early april)
50.07 open 400 (early april)
49.5 relay split followed by 1:54 (late april)
1:54 (to win our section) Late May
1:52.4 (to qualify for state finals) Late May
1:54 in state finals. The state final race was sub optimal. We didn't really expect him to qualify and his family had a trip planned for Europe leaving the morning of the state final. We had to work out a deal where I drove him home the night after state trials. His family left for Europe the next morning and he and I went back to the state meet that night. It's about a 2 hour drive each way, so we added an extra 4 hours sitting in a car, plus, he didn't get home until after midnight on the night of state trials.
So far during Christmas break, we've done a few max speed sessions and a few fartlek sessions to go with his easy running. He hit .98 seconds on a 10m fly a couple of days ago, which is far faster than he ever went last year. So I know that already he'll be coming into the season with more top speed than last year.
I'm also confident that he'll be aerobically stronger than he was last year. Last year, he didn't really do any running during the soccer season except during Christmas break, where he tried to jump right back to 50mpw, since his team wasn't practicing. He developed a minor injury doing that last year. This year, he's more around 20mpw, but he's getting the speed work and the fartlek work that he didn't get last year.
I'll update this thread periodically, if anyone is interested.