The 100 meters should be at your 1500 meter pace.
Track and field warm up.
The initial exercises are controlled focusing on raising the body temperature slowly and developing a full range of motion from head to toe.
In track and field throwers usually perform 400m 600m of active warm up exercises broken down into 10 exercises at 40m 60m each.
The start of the warm up is active with low intensity activities such as arm circles easy skipping or walking toe touches.
Sprinters and jumpers generally warm up with 800m 1 000m of exercises and include more explosive exercises near the end of the warm up routine.
The track and field warm up exercises in this video can help runners vaulters long jumpers and sprinters loosen and lengthen active muscle fibers before putting the body through a high intensity workout.
Then finish up your warmup with 3 100 meter strides.
Even more important dynamic track and field warm up stretches like these can open circulation to the muscles of the core arms and legs.
To start a series of short twenty meter shake out runs should be included.
This is the dynamic warm up that i often use and put my athletes through regardless of sport.
The exercises are stationary or up to 30 meters in length.
After each drill you should run the remaining distance to cover 100 meters so that when the 7 drills are complete you will have run 7 100 meters exercises included.
A proper warmup routine for a track and field sprinter should include components of biological systems which will be eventually used during a practice session or competition performance.