Idk if it's possible to check, I started playing WvW actively after EoTM died out, once pips got introduced and exp gains dropped to kitten. NA K-trains were proper minmaxed, with boosters, especially during the special week events, could get hundreds of ranks easily.
Such game mode being wasted, no reason to play it now, can't make gold out of it, can't progress, there's no reason for servers to compete, no challenge nor reason to push tiers 😞