60min of endurance for me today, my son was on zwift next to me. He averaged "100w" for 60mins on a zwift race (he's not into racing but it's just something to engage his mind a bit). I think the z-power is in the neighborhood of real life because I average 90ish when we're out in the neighborhood together. Anyhow, I inadvertently made him a sandbagger in the D class because his w/kg is 3.2, which would make him a high C/low B lol