How long is the 4x100 exchange zone?

30 meters total under World Athletics and NCAA rules, since the 2018 rule change. It runs from 20 meters before the next leg's start line to 10 meters after it. Check your state's current NFHS rulebook edition for the high school number, since NFHS has revised relay-zone rules in recent years and this page cannot confirm the current outdoor figure.

How long is the 4x400 exchange zone?

20 meters, centered on the next leg's start line, and passed visually rather than blind. This one is consistent across World Athletics, NCAA, and NFHS.

What happens if you pass the baton outside the zone?

Automatic disqualification. There is no warning or partial penalty, which is why teams over-practice the zone relative to any single leg.

Is the exchange zone the same in high school, college, and international meets?

The 4x400 zone, 20 m, is consistent across NFHS, NCAA, and World Athletics. The 4x100 zone is 30 m under NCAA and World Athletics rules; NFHS has been actively revising its relay-zone rules, so confirm the current 4x100 number in your state's rulebook rather than assuming it matches the international figure.

Relay Baton Pass Zones: Rules, Distances, Penalties

Relay Baton Pass Zones

Get the exchange zone wrong and it does not matter how fast your team is; the baton passing outside the legal zone is an automatic disqualification, no warning given. Under World Athletics and NCAA rules, the 4x100 zone is 30 meters total, running from 20 meters before the next leg's start line to 10 meters after it. The 4x400 zone is a simpler 20 meters, centered on the start line, and exchanges there are visual rather than blind because runners are fatigued and need to see the handoff coming. Below is exactly how each zone is measured, how it differs by rule body, and where most disqualifications actually happen, since almost every relay DQ traces back to one of a small handful of preventable causes.

4x100 exchange zone: 30 meters, blind pass

Since the 2018 rule change removed the separate 10-meter acceleration zone, the World Athletics and NCAA 4x100 exchange zone is 30 meters total, and the baton must physically pass from hand to hand somewhere inside that window. Runners use a go-mark, a spot on the track where the outgoing runner starts sprinting based on the incoming runner's speed, so the pass happens at matched velocity rather than a standing handoff, and re-measuring that mark every meet is the single most valuable thing a 4x100 team can do.

4x400 exchange zone: 20 meters, visual pass

The 4x400 zone is a standard 20 meters centered on the next leg's start line, and this figure holds across World Athletics, NCAA, and NFHS. Because incoming runners are fatigued after a full 400m, the exchange is visual, the outgoing runner watches the baton come in rather than reaching back blind the way 4x100 runners do, and the outgoing runner typically starts moving only once the incoming runner is within a few meters. Judging that distance under race pressure is its own skill and it is worth drilling separately from the mechanics of the handoff itself.

Where disqualifications actually happen

Most relay DQs trace to one of three things: the baton changing hands outside the zone line, a dropped baton picked up by the wrong runner, or a lane infraction by the outgoing runner stepping outside their box early. All three are preventable with repeated zone practice, which is exactly why teams drill the exchange far more than they drill individual legs, and why a team with slower individual splits can still beat a faster field on clean zone work alone. Officials at bigger meets increasingly use video review to confirm exact zone position on close calls.

Film your zone exchanges

Most teams lose more time to bad zone use than to slow legs. Film the exchange zone side-on, AI grades where in the zone the stick passed and the speed differential between incoming and outgoing runners. Teams that exchange at the end of the zone with matched speeds run the fastest 4x100s.

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Sources: World Athletics Technical Rules Book C2.1 (Rule 24, relay takeover zones) and the current NCAA Track and Field Rules, both confirmed directly. The NFHS 4x100 outdoor zone length is not confirmed here; NFHS has revised relay exchange-zone rules in recent rulebook cycles, so check your state association's current book.
Relay	NFHS	NCAA	World Athletics
4x100 total exchange zone	Not confirmed here, check current state rulebook	30 m	30 m (since 2018)
4x100 zone start (before start line)	Not confirmed here	20 m	20 m
4x100 zone end (after start line)	Not confirmed here	10 m	10 m
4x100 separate acceleration zone	Not confirmed here	None (removed)	None (removed in 2018)
4x400 total exchange zone	20 m	20 m	20 m
4x400 zone centering	Centered on start line	Centered on start line	Centered on start line
Pass type	Blind (4x100), visual (4x400)	Blind (4x100), visual (4x400)	Blind (4x100), visual (4x400)

Sources: World Athletics Technical Rules Book C2.1 (Rule 24, relay takeover zones) and the current NCAA Track and Field Rules, both confirmed directly. The NFHS 4x100 outdoor zone length is not confirmed here; NFHS has revised relay exchange-zone rules in recent rulebook cycles, so check your state association's current book.

Relay

NFHS

NCAA

World Athletics

4x100 total exchange zone

Not confirmed here, check current state rulebook

30 m

30 m (since 2018)

4x100 zone start (before start line)

Not confirmed here

20 m

4x100 zone end (after start line)

Not confirmed here

10 m

4x100 separate acceleration zone

Not confirmed here

None (removed)

None (removed in 2018)

4x400 total exchange zone

20 m

4x400 zone centering

Centered on start line

Pass type

Blind (4x100), visual (4x400)

Relay Baton Pass Zones

Zone rules and how teams use them

4x100 exchange zone: 30 meters, blind pass

4x400 exchange zone: 20 meters, visual pass

Where disqualifications actually happen

Film your zone exchanges

Exchange zone lengths by relay and rule body

Relay Baton Pass Zones FAQ

The full relays index

Master the exchange zone.

Relay Baton Pass Zones

4x100 exchange zone: 30 meters, blind pass

4x400 exchange zone: 20 meters, visual pass

Where disqualifications actually happen

Film your zone exchanges

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Master the exchange zone.