Notes
1 mile, 2x1200 CI (600), 4x400 SI (200), 4x200 SI (100), 1 mile
SPEED INTERVALS (SI) Run at 5-K race pace to develop quick turnover.
PACE INTERVALS (PI) Lengthy repetitions at goal half-marathon pace to build endurance and pace awareness. All numbers in parentheses are distance of recovery jog.