I can't find that answer easily. I suppose one could
comb through the results for both races for the data.
In my AG (M55-59), 13 finished the DL Sprint and and 14 finished the Olympic.
BTW: The bike course was incredibly technically challenging. 30+ 90 or 180 degree turns. Thank goodness Mother Nature decided to shine on us instead of rain (as she did on the two pre-rides).
ETA: The relative counts was hard to eyeball based on the bike count. There was a split transition and the Sprint race was staged as the Olympic was underway. T1 was basically empty as we staged the bikes and many bikes had been removed from T2 as we finished.