45s out and 45s back, or 1m 30s continuous (in one direction) easy/steady @ 7 RPE
2mins out and 2mins back, or 4mins continuous (in one direction) race pace @ 8-9 RPE
1m 15s out and 1m 15s back, or 2mins 30s continuous (in one direction) easy/steady @ 7 RPE
2mins out and 2mins back, or 4mins continuous (in one direction) race pace @ 8-9 RPE
1m 30s out and 1m 30s back, or 3mins continuous (in one direction) easy/steady @ 7 RPE
(TURN/RETURN if you are running continuous intervals)
2mins out and 2mins back, or 4mins continuous (in one direction) race pace @ 8-9 RPE
1m 15s out and 1m 15s back, or 2mins 30s continuous (in one direction) easy/steady @ 7 RPE
2mins out and 2mins back, or 4mins continuous (in one direction) race pace @ 8-9 RPE
45s out and 45s back, or 1m 30s continuous (in one direction) easy/steady @ 7 RPE