Link please.
Funnily, they haven't released them in full, just the DP choices. But I saw on someone's tweet. It's not 49% vs 42%: That's a different question. (Who do you think will win?)
On the question 'Who will you vote for if elections were held today?' the result is 47% (Baba) and 43% (Samoei)
Comparing with Mizani, the differences I noticed were:
1) Raila's performance in Central and upper Eastern is much better: They give him high 20s (like 28%) in Central) and nearly 40 in Upper Eastern (38%).
2) Western is nearly 50-50 split compared to Mizani where Baba is like 58% Western. Here it's more like High 40s Baba and lower 40s Ruto.
3) Nyanza has Raila like 80s: I don't know how they did their sampling. If well-distributed, then it means they are giving Raila a bigger chunk of Gusii than Mizani.
4) Mizani split N.E. almost 50-50, here Raila has a huge chunk. I think closer to 70%
The rest are pretty similar to Mizani.
They also say the polling closed on the day Kaloi toshad Rao, so I'm not sure how much the excitement of that day factored into it.
Whatever the case, seems to be showing the same trend in Mizani of the kawaida faultlines in the old provinces beginning to show up clearly as in the past three elections, basically since 2007 with the exception of RV which switched sides starting 2013.