
Chicago Cubs
Ian Happ’s 366 ft home run at Great American Ball Park — out in 28 of 30 MLB ballparks
Ian Happ hit a 366-foot home run down the right-field line at Great American Ball Park on September 18, 2026. It would have cleared the wall in 28 of MLB’s 30 ballparks.
Distance-only estimate. We compare projected distance with each park’s fence at the same spray angle. Wall height, trajectory and weather are not modelled. These comparisons are not official park factors. How Donged works.
Cubs at Reds (4–6), off Chase Burns.
- 28/30Estimated parks cleared
- 366 ftProjected distance
- 100.6 mphExit velocity
- 25.0°Launch angle
- 31.3°Spray angle
Field view — Great American Ball Park
Out hereThe ball landed 366 ft from the plate, down the right-field line, where the wall is 343 ft. The outline is this park’s wall; the dashed line is the ball’s path over the ground.
Would it be out in every ballpark?
Each park’s outfield wall is sampled at seven spray angles and interpolated to this ball’s 31.3° angle, then compared against its 366-foot projected distance. On that basis it clears the wall in 28 of 30 parks and stays in play in the other 2.
The parks that hold it are the ones with a deeper wall at 31°, which is why the same swing is worth a different result depending on the address. Distance here is Statcast’s projected distance from the MLB Stats API — where the ball would have landed unobstructed. Wall height and the ball’s trajectory arc are not modelled, so a ball that clears on distance might still have hit high off a tall wall in a park that has one.
| Ballpark | Wall at this angle | Distance estimate |
|---|---|---|
| 343 ft | Home run | |
| 343 ft | Home run | |
| 343 ft | Home run | |
| 343 ft | Home run | |
| 344 ft | Home run | |
| 346 ft | Home run | |
| 346 ft | Home run | |
| 347 ft | Home run | |
| 348 ft | Home run | |
| 348 ft | Home run | |
| 348 ft | Home run | |
| 348 ft | Home run | |
| 348 ft | Home run | |
| 349 ft | Home run | |
| 352 ft | Home run | |
| 353 ft | Home run | |
| 353 ft | Home run | |
| 353 ft | Home run | |
| 356 ft | Home run | |
| 357 ft | Home run | |
| 357 ft | Home run | |
| 357 ft | Home run | |
| 357 ft | Home run | |
| 358 ft | Home run | |
| 359 ft | Home run | |
| 359 ft | Home run | |
| 360 ft | Home run | |
| 362 ft | Home run | |
| 371 ft | Stays in | |
| 373 ft | Stays in |
More
- All Ian Happ home runs
Every tracked homer, with park-by-park results.
- Great American Ball Park
Wall distances and home runs hit here.
- Home runs on September 18, 2026
Everything that left the yard that day.