SureAI

So during a mission in the main quest I had to shoot an arrow at a hole to get a speed boost to make it across some bridges in time. Once the spell duration was over I still had the speed bonus from it not thinking much of it I went along to finish out that dungeon. Now that I am out of it I would like to get rid of the +100 bonus to my speed stat I would reload an older save but I been playing for hours and have been coasting on auto and quick saves. I have looked in TES4Edit and found what I think is the spell casted on me "MQ16SpellSchnell Magic of Speed" I have tried using the console to dispel it using the spell ID (001DF53F) but have had no luck.

Any advice on how to revert this other that reloading an old save any help would be very much appreciated.

You can remove the buff via the console.
arvisrend also asked for a savegame to analyze the bug but the OP did not post again: So, what did you do?

Thank you very much for the quick reply and fix.

After I got the speed buff all I did was run into the portal, The spell duration was still in effect when I went through the portal although I wasn't paying attention to it after words. I didn't quick save with the buff I know that much, Perhaps the game had auto saved when loading into the new cell to late now to go back and check. I am also using an oblivion mod moonelf race although I doubt it could be the cause of this but I could be wrong.

Thanks for the history, but I still would like to have your savegame.
Running through the portal with the spell being active should NOT be a problem in its own. I tried this several times. I think I also tried autosave and load.
Anyway to get rid of the spell you should type "player.modav speed -100" and "player.modav athletics -100".

Sure I got no problem passing on the saved game also like I said using a custom race moonelf if that matters. This saved game is after the events in Soul Flayer Temple. Now I am in Cahbeat before choosing a counter attack path. I should hard save more often hitting the F5 key is just so fast n easy.

Edit: noticed I can upload here to the forums.

My speed is 35 (never upped it) and I made it through the drawbridge physical challenge without wasting any arrows. : )