John Duren
G · 3 seasons · 1980-81 – 1982-83
John Duren is the extreme version of a specialist. +1.7 of roto value came from turnovers, yet his career total is only -9.3. No season of his scores higher than 1982-83, at -1.7, 183rd that season and 13823rd of 24,555 player-seasons on record. Career value accumulated in turnovers (+1.7) and free-throw percentage (+0.1), and drained away in rebounds (-2.5), points (-2.4) and blocks (-2.0). He rates 238 places better on totals than per game, and that gap is the durability story in one number.