KCOP’s coverage of the eighth annual City of Los Angeles Marathon proved to be a mixed ratings bag for the indie.The station finished first in Nielsen and Arbitron from 9 a.m.-noon, but its year-to-year perf varied from one service to the other. Nielsen showed the station running up a 20% increase in share over last year’s numbers. It crossed the finish line with a 7.2 rating/24 share vs. a 7.0/ 20 in 1992. In Arbitron, however, KCOP’s numbers were at anall-time low. The indie slipped 19% in rating to a 6.9/21 from an 8.5/23 a year ago — with the televised event apparently falling victim to the unseasonably warm weather on Sunday. Still, the station could boast that it had twice as many viewers as the next best station during the three hours of the marathon. KNBC-TV averaged a 3.6 rating in Nielsen, while KABC-TV pulled a 2.7. Among sporting events, KABC could muster only a 2.7 and KCBS-TV a 2.2 with NCAA college basketball, while KNBC garnered a 3.3 for the Boston Celtics-Cleveland Cavaliers basketball game.