Interesting. Perhaps you should do a few hundred runs, track how many times you get (at 88% of course) and then check it against videos of youtubers running barrows previously. See if there is any significant different. Sounds like a bit of bad luck tbh200M all skills, Trimmed comp Cape, MQC
White knighting"female" forum users is cringey
Voaxsaid: From my experience with Barrows finishing with 88% reward potential should give you the best loot and runes. If you're an ironman (which the OP seems to be given their username) and you don't need blood runes, getting ~75.5% RP is actually better, since that way you'll roll for more chaos/death runes that you can use for trident, and you'll spend less time killing the crypt monsters.