Setting up starting blocks correctly comes down to three things: positioning them at the right distance from the starting line, spacing the front and rear pedals properly, and adjusting the pedal angles. Small differences in setup directly affect how much force you can generate at the gun, so it’s worth getting precise. Here’s how to do it step by step.
Positioning the Blocks on the Track
Start by placing the frame of the blocks behind the starting line. Most sprinters position the front pedal about two foot-lengths back from the line, then place the rear pedal one additional foot-length behind that. This gives you a medium spacing, which is the most common setup and the best starting point if you’re new to blocks.
Make sure the blocks are centered in your lane. If they’re even slightly off-center, you’ll push off at an angle and create rotational problems in your first few strides. On most tracks, the blocks have a rail that sits flush against the surface and pins or clamps that anchor into the track. Press them firmly into position and test that they don’t slide by pushing hard against each pedal before you get into your stance.
Front and Rear Pedal Spacing
The distance between your front and rear pedals is the single most important variable in your setup. There are three standard spacings, and each one changes how quickly you leave the blocks and how much total force you produce.
- Bunched start: The rear pedal is less than 30 cm (about 12 inches) behind the front pedal. Your rear knee lines up roughly with the toes of your front foot. This lets you move both feet off the blocks almost simultaneously, but you sacrifice pushing power from the rear leg.
- Medium start: The rear pedal sits 30 to 50 cm (12 to 20 inches) behind the front pedal. Your rear knee aligns with the arch of your front foot. This is the most widely used spacing because it balances block time with force production.
- Elongated start: The rear pedal is more than 50 cm (20+ inches) behind the front pedal. Your rear knee ends up slightly behind the heel of your front foot. You spend more time pushing against the blocks, which can generate high force, but your block clearance is slower.
If you’re just learning, start with the medium spacing and adjust from there. Move the rear block closer if you feel like your back leg isn’t contributing much to the push. Move it farther back if you feel cramped and can’t extend through either leg.
Setting the Pedal Angle
Most starting blocks let you adjust each pedal to several fixed angles. Set both pedals to 45 degrees as your baseline. Research on foot plate inclination shows that angles other than 45 degrees don’t produce more power or faster acceleration. Some experienced sprinters make small personal adjustments, but 45 degrees matches the body angle you’re trying to achieve at block exit, making it the most mechanically efficient position for the majority of athletes.
The front pedal and rear pedal don’t have to be at the same angle. Some sprinters prefer the rear pedal slightly steeper (more upright) so the ball of the foot catches it more aggressively. But start with both at 45 and only experiment once you’re comfortable with the rest of your setup.
Getting Into the Set Position
Once the blocks are placed, back into them by kneeling with your stronger (drive) leg on the front pedal. Place your hands just behind the starting line, slightly wider than shoulder width, with your fingers bridged and thumbs pointing inward. On the “Set” command, raise your hips until they’re slightly higher than your shoulders and load your weight forward into your hands.
Your front knee should be at roughly 90 degrees in the set position. The rear knee angle matters more than most people realize. A study published in Biology of Sport tested sprinters at three rear knee angles: 90, 115, and 135 degrees. Sprinters with a 90-degree rear knee angle produced significantly greater horizontal velocity at block clearance and through the first two strides compared to both wider angles. The tighter rear knee angle also increased the percentage of total pushing time spent on the rear leg, meaning you get a longer, more productive push before that foot leaves the block.
Elite sprinters show a wide range of rear knee angles in practice, from about 90 to 154 degrees, but the evidence points toward the tighter end of that range for maximizing rear-leg contribution. If your rear knee is much more open than 90 degrees in the set position, your rear pedal is probably too far back.
Which Leg Goes in Front
Your front block should hold your dominant or stronger leg, since that leg does most of the work during the push phase. A simple test: stand with your feet together and have someone give you a light push from behind. The foot you step forward with to catch yourself is typically your front-block leg. You can also try both configurations in practice and time yourself over 10 to 20 meters to see which feels more explosive.
Common Setup Mistakes
The most frequent error is placing the blocks too far from the starting line. When the front pedal is too far back, you can’t load enough weight into your hands during the set position, which means less forward momentum at the gun. You end up popping upright too early instead of driving out at a low angle.
Another common problem is spacing the pedals too far apart (elongated spacing) before you have the strength and coordination to use that range. Beginners who over-spread their blocks often lose rear-leg contribution entirely because the back foot leaves the pedal before it generates meaningful force. The rear leg should be actively pushing for about a third of your total block time. If it feels like your back foot is just along for the ride, bring the rear pedal closer.
Misaligned blocks are a subtler issue. If the rail isn’t pointing straight down the lane, or if one pedal is angled differently than you intended, you’ll push off asymmetrically. Check alignment every time you set up, especially on older track surfaces where pin holes may pull the frame off-center.
False Start Thresholds in Competition
In sanctioned meets, electronic starting blocks contain pressure sensors that measure your reaction time. World Athletics rule 162 sets the minimum legal reaction time at 0.1 seconds. Any movement registered on the sensors faster than 100 milliseconds after the gun is automatically flagged as a false start, because the human nervous system cannot process an auditory signal and produce a voluntary muscular response in less time than that.
This matters for setup because your weight distribution in the set position affects how sensitive the sensors are to your movements. If you’re rocking or unstable on the blocks, you risk triggering a false start even without intending to move. A solid, locked set position with even pressure on both pedals and your hands keeps you stable until the gun fires. Practice holding your set position for two to three seconds without shifting, since starters in competition will vary the hold time to prevent athletes from anticipating the gun.