So for Sanka, it was:
but lots of unplayed Sigils (I don’t recommend playing 3 accounts, tbh, especially in weeks like this…):
I can’t remember if I let any Valravens slip away, but I don’t think I did (I know it happened on my 200 account).
Minus the 15 Sigils from Tiers III-V, that would seem to be within Tier II (with a Sigil to spare), unless having bought the extra Tier allowed me to kill an extra Valraven that I otherwise wouldn’t have been able to(??).
Or were you looking for the Shop tiers/battles played from Altimus?
Edit: turns out Altimus did the best of all three of us (me and my two alts) (despite losing a battle or two and a Valraven)!!! 
Third time’s the charm:
Also ended up on a similar screen…
I.e. I didn’t fully track it, since I’m a bit over trying to give feedback on these World Events (doesn’t seem to get much response), but I’m not fully convinced battles are varied between accounts? Not really sure what made up the score difference was between Sanka and Altimus, though…