I went for a run on the dyke in the evening to get some strides in before the Seawall race.  My legs felt good.  I did 3km warmup at a pretty crisp pace.  Then some longer “strides” (each 250-400m) at a faster tempo.  I did 4 of these segments in total.  My legs felt good, and the run felt fast.  The seawall race is going to be good.  I’ll just have to figure out how to deal with the wind.