Of the 50 teams (including ties) who were in first place at the end of April, 7 went on to win their league championship. 9 more finished 2nd, while 10 ended up 3rd.

4th: 6
5th: 2
6th: 5
7th: 3
8th: 0
9th: 2
10th: 2
11th: 2
12th: 2

Of the 48 league champions, none were in last place on April 30, but 2 were in 11th and 2 more were in 10th.

1st: 7
2nd: 10
3rd: 10
4th: 2
5th: 9
6th: 3
7th: 2
8th: 0
9th: 1
10th: 2
11th: 2
12th: 0

The 2 teams that were in 11th:

Yeah, kinda crazy how that works, because the season is so long, but I wonder if there's a bit of other things going on besides their teams not doing well... Panic sets in and you drop someone you shouldn't have, you see you're in last so you give up and focus on your teams that are doing well, you're in last so you didn't care to begin why care later on...