HAM radio is a small world. It are always the same people that come back.
But this one is a bit extreme :-)
During the 2013 ARRL CW contest, Marko, S50K, ended just before me on 15M band.
Eleven months later, 2013 CQWW DX CW we meet again in the final score table.
Now, it's my turn to have 10 K points more.
It seems that our stations and contest capabilities (and category choice) are very close to each other (at least on the higher bands and in morse).