Name That Tomato

We planted Yellow Pears, Romas, and Sweet 100s, or a as close to those varieties without getting lawyers involved (so sayth the packaging). But this doesn't look like any of those three.

Did we plant them too close to one of the other varieties and some weird cross genetics happened? OR the packages weren't what they said they were?

[Santina]

the best known is the red tomato, but there are many other varieties and colors, it can be yellow, green, orange, pink, white and even black, they say that the yellow tomato is less acidic and much sweeter, this could be the quality....Golden Boy

[Walks @ 7]

I love the yellow pear variety. This looks very healthy

[Peter Dulis]

yum

[Stephomy]

Could it be a Yellow Perfection?

[J A Byrdlip]

@stephomy Not sure, but it is very tasty on an open cheese sandwich.