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Sean Keys

Toronto Blue Jays

Sean Keys’s 399 ft home run at Kauffman Stadium — out in 30 of 30 MLB ballparks

Sean Keys hit a 399-foot home run down the right-field line at Kauffman Stadium on September 4, 2026. It would have cleared the wall in 30 of MLB’s 30 ballparks.

Blue Jays at Royals (9–2), off Easton McGee.

  • 30/30Ballparks it clears
  • 399 ftProjected distance
  • 103.5 mphExit velocity
  • 36.0°Launch angle
  • 41.8°Spray angle

Field view — Kauffman Stadium

Out here
200300400

The ball landed 399 ft from the plate, down the right-field line, where the wall is 340 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 41.8° angle, then compared against its 399-foot projected distance. On that basis it clears the wall in 30 of 30 parks.

That is a no-doubter: there is no outfield in the league deep enough to hold it at this angle. 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.

BallparkWall at this angleResult
BOS logoFenway Park319 ftHome run
SF logoOracle Park321 ftHome run
NYY logoYankee Stadium322 ftHome run
BAL logoCamden Yards324 ftHome run
PIT logoPNC Park325 ftHome run
TB logoTropicana Field328 ftHome run
ATH logoSutter Health Park329 ftHome run
CIN logoGreat American Ball Park329 ftHome run
SD logoPetco Park330 ftHome run
CLE logoProgressive Field330 ftHome run
ATL logoTruist Park330 ftHome run
HOU logoDaikin Park331 ftHome run
TEX logoGlobe Life Field331 ftHome run
MIN logoTarget Field332 ftHome run
SEA logoT-Mobile Park332 ftHome run
DET logoComerica Park334 ftHome run
PHI logoCitizens Bank Park334 ftHome run
TOR logoRogers Centre335 ftHome run
NYM logoCiti Field335 ftHome run
LAA logoAngel Stadium336 ftHome run
LAD logoDodger Stadium336 ftHome run
WSH logoNationals Park338 ftHome run
CHW logoRate Field339 ftHome run
STL logoBusch Stadium339 ftHome run
KC logoKauffman Stadium340 ftHome run
ARI logoChase Field340 ftHome run
MIA logoloanDepot Park340 ftHome run
MIL logoAmerican Family Field348 ftHome run
COL logoCoors Field353 ftHome run
CHC logoWrigley Field355 ftHome run

More

donged — how many of MLB’s 30 ballparks would that home run have left the yard in? Distances are Statcast projected distance from the MLB Stats API, compared against each park’s outfield wall at the ball’s spray angle. Wall height and trajectory arc are not modelled.

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