2 Corrected description, based on comments.
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Strecke is a term from geometry, which mainlyusually means "part of a way" with start and end point. It could be also understood as "way"the way to take".

The term is used in a wider sense by some phrases, such as "xxx bleibt auf der Strecke", which means "xxx is left behind". 

Abstand is the word typically used when you are the outside observer. It describes the distance between the start point and the end point of a "Strecke", Most people use the term for short, directly measurable distances only. It relates both to space ("Abstand der Möbel") and time ("Abstand der Läufer").

Entfernung is most commonly used for "distance to travel", so you try to rank the position of something else in relation to your own position.

Distanz means the same as "Entfernung", but is more often used in negative formulations, like "die Distanz halten" (keeping the distance).

The German Wiktionary has pretty good explanations.

Strecke is a term from geometry, which mainly means "part of a way" with start and end point. It could be also understood as "way to take".

Abstand is the word typically used when you are the outside observer. It describes the distance between the start point and the end point of a "Strecke", Most people use the term for short, directly measurable distances only. It relates both to space ("Abstand der Möbel") and time ("Abstand der Läufer").

Entfernung is most commonly used for "distance to travel", so you try to rank the position of something else in relation to your own position.

Distanz means the same as "Entfernung", but is more often used in negative formulations, like "die Distanz halten" (keeping the distance).

The German Wiktionary has pretty good explanations.

Strecke usually means "part of a way" with start and end point. It could be also understood as "the way to take".

The term is used in a wider sense by some phrases, such as "xxx bleibt auf der Strecke", which means "xxx is left behind". 

Abstand is the word typically used when you are the outside observer. It describes the distance between the start point and the end point of a "Strecke", Most people use the term for short, directly measurable distances only. It relates both to space ("Abstand der Möbel") and time ("Abstand der Läufer").

Entfernung is most commonly used for "distance to travel", so you try to rank the position of something else in relation to your own position.

Distanz means the same as "Entfernung", but is more often used in negative formulations, like "die Distanz halten" (keeping the distance).

The German Wiktionary has pretty good explanations.

1
source | link

Strecke is a term from geometry, which mainly means "part of a way" with start and end point. It could be also understood as "way to take".

Abstand is the word typically used when you are the outside observer. It describes the distance between the start point and the end point of a "Strecke", Most people use the term for short, directly measurable distances only. It relates both to space ("Abstand der Möbel") and time ("Abstand der Läufer").

Entfernung is most commonly used for "distance to travel", so you try to rank the position of something else in relation to your own position.

Distanz means the same as "Entfernung", but is more often used in negative formulations, like "die Distanz halten" (keeping the distance).

The German Wiktionary has pretty good explanations.