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Via Ripped Corner : Calculating repetition maximums.

"Sonnon is without doubt one of the top conditioning coaches in the US, the thinking man's coach. He is the hologram man. Try and hit him and he disappears."
- Pavel Tsatsouline
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I made one of those a while back and use it all the time. It has been a useful tool for calculating 3RM and 5RM totals as well. (I also felt pretty smart putting in some “advanced” looking formulas in the spreadsheet).
Cool. Is it online anywhere by any chance?