1200 is much harder but I can get maybe 60-75%:
Hit is muchel to seggen all þat pinunge hie on me uuroȝten, al þar sor and al þat sorȝe. Ne scal ic nefre hit forȝeten, naht uuhiles ic libbe!
There is much to say of all that paining he wrought upon me. All that soreness and sorryness. Not shall I ever forget it, not while I live!
Ac þer com me gret sped, and þat was a uuif, strong and stiþ! Heo com in among þe yuele men and me nerede fram heore honden.
Here is where I lose the thread.
A wiff ... wife? witch? waif? woman? ... who is strong and perhaps stiff or some similar word, comes to him with great speed. She comes in among the evil men/man and saves him with her hand. Although I could be way off
Heo sloȝ þe heþene men þat me pyneden, sloȝ hem and fælde hem to þe grunde. Þer was blod and bale inouȝ And hie feollen leien stille, for hie ne miȝten namore stonden. Ac þe Maister, þe uuraþþe Maister, he flaȝ awei in þe deorcnesse and was iseon namore.
Here I can gather a lot more but I'm guessing a lot:
She slayed the heathen man who pained me, slayed him and felled him to the ground. There was a lot of blood and bile and he fell and lay still. For he had no more might to stand. And the maister, the wrathful maister, he fled into the darkness and I saw him no more.
Ic seide hire, “Ic þanke þe, leoue uuif, for þu hauest me ineredd from dæðe and from alle mine ifoan!”
I said to to her "I thank you, lovely waif/wife/witch, for you have saved me from death and from all my (?)"
And then from 1100 I can gather that the waif/witch/woman replies to his thanks and introduces herself as Aelfgifu, which I incidentally know is an old English female name meaning Elf Gift
Any further help?