The books Nathan suggested, while bad, do have some deathwatch fluff in them.
So does the second Uriel Ventris book.
The wikipedia article is
Dark Angels 1750 win/loss Record
Win - 23 (Belial helped wreck Ryan's puny Eldar)
Loss - 13 (Brice's Necrons wiped me)
Draw - 2 (The 13th hold out in alpha take and hold)