Let's do the math....
If the previous record was 237.5 feet, that makes it 79.1 yards.
Judging by the picture, these appear to be the dimensions (lengthwise) of the jump.
Going off of the length of the football field, the obstacle is roughly 65 yards (195 feet) long.
So in order to clear the obstacle, Joe Sylvester would need to jump at least 195 feet.
However, there's still quite a bit of room between the end of the obstacle and the backflip ramp. Appearing to be an additional 20 yards.
This would total up to be 85 yards. Or 255 feet.
Assuming that Joe can somehow gain the speed to clear the obstacle (nitrous?), he would still have to fly at least 43 more feet in order to beat the record,
before flying into the backflip ramp and breaking another world record by performing a triple backflip.
If my math is right and there's enough space available for speed, Joe Sylvester has a good chance this year to make it onto the front of the World Finals XV DVD.