I have done this sort of session with 2 other players of the same position so going on a 1:2 work:rest ratio.
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(3500m total) again going flat out for each rep. Recorded all times. Done once a week for 4 weeks – go through the data after the 4 weeks to work out improvements. Obviously wasnt the only training i was doing at the time though.
Variations of this were designed for different positions – Props some longer distances mixed in with the shortr stuff, outside backs shorter distances or working for time rather than m.
Pretty good session, give it a go.