Runs not off the bat (4)
(Other definitions for byes that I've seen before include "Cricketing extras" , "Cricket extras" , "In cricket, runs scored from balls that pass the batman without being hit" , "Extra runs" , "Runs wicketkeeper concedes" .)
(Other definitions for extras that I've seen before include "Additions" , "Spear carriers" , "Bit actors in film" , "Spear-carriers" , "minor players?" .)