Does tomato shape affect cracking?
 

After our hot spell (2 weeks of 100s) we got a week of off and on rain with much lower temperatures. Due to nematodes in the soil I'm raising in buckets on rain gutters (first time this year, so still learning the do's and don'ts). The gutters filled up with rainwater, buckets soaked up, and ripening tomatoes started cracking. All I could do was drain the gutters and pick all but the green tomatoes. Growing several varieties and it seems the flatter (oblate) ones cracked worst, rounds not as bad and a heart shaped one and some pear shapes not at all. I don't know if this is true in most cases or if it just happened, but it may affect my variety selection in the future. Comments please. Sorry, got this in wrong forum. sooo emberassed

tiny dwarf tomatoes like tidy treat did fine.
But the tomatoes are the size of peanut M&M's

Imo tomatoes with a flattened irregular or oblate shape particularly those with a large stem scar an/ or big sunken stem are much more likely to have radial cracking. And also a big core sometimes.
Concentric cracking is more related to variety than shape.
KarenO