I would also add that to an English ear the difference between ɒ and ʌ in the word result is minimal. These words make the ʌ sound: strut, mud; and if you pronounced them with the ɒ sound they would be understood as: strot, mod. So definitely a mistake in pronunciation. However in the word result, this doesn't matter nearly so much. Why? I couldn't say. Perhaps because native speaker accents vary between the two pronunciations? Saying that, the dictionary pronunciation would considered be the standard form.

I agree with Paul - in both cases, the speaker is pronouncing the word in the exact same way. I'd even say the way the speaker pronounces the L very lightly and with a bit of intonation in the first example. Maybe this is why it sounds like a different vowel to you. It's very clear to me that the speaker is from the UK. Keep using /rɪˈzʌlt/.

I don't hear a difference. They are both pronouncing it in the standard way as given in the dictionary.