![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://s7d2.scene7.com/is/image/TWCNews/2020-07-25-angels-oc-lajpg)
In 1st MLB game with new extra-inning rule, A's slam Angels
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://www.news10.com/wp-content/uploads/sites/64/2020/07/56d17b085f374708b47b42ef7002d3c5.jpg)
In 1st MLB game with new extra-inning rule, A's slam Angels
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://bloximages.chicago2.vip.townnews.com/madison.com/content/tncms/assets/v3/editorial/0/b1/0b164d7b-3a21-57e6-b24a-a0b553c39dac/5d412c4cb86e2.image.jpg?resize=614%2C500)
Brewers' Josh Hader gives up 10th-inning walk-off homer to Oakland's Matt Olson
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://i.cbc.ca/1.6164951.1630725044!/cpImage/httpImage/blue-jays-oakland-athletics-03092021.jpg)
Marcus Semien's 3-run walk-off homer propels Blue Jays to victory over Athletics
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://www.burlingtoncountytimes.com/gcdn/authoring/2017/09/17/NBCO/ghows-PA-b883af5e-b6af-4c08-ab17-9bf3fdee6962-e3552b06.jpeg)
Grand slam lifts Athletics to 6-3 win over Phillies
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://s.hdnux.com/photos/01/13/20/22/19727522/6/rawImage.jpg)
A's overlook safety protocols during on-field celebration after Olson's walkoff homer
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://media.nbcdfw.com/2020/08/GettyImages-1264199492.jpg?quality=85&strip=all&resize=1200%2C675)
A's Top Rangers, Win 5th Straight Behind Olson's 2 HRs – NBC 5 Dallas-Fort Worth
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://res.cloudinary.com/graham-media-group/image/upload/f_auto/q_auto/c_scale,w_400/v1/media/gmg/G5PEF3FTAZDLTILH4XQK55O7MM?_a=AJFJtWIA)
Matt_Olson
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://i0.wp.com/slamstation.com/wp-content/uploads/2023/07/Matt-Olson-grand-slam.jpeg)
First to 30: Matt Olson Grand Slam Helps Braves
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://cdn.vox-cdn.com/thumbor/qdbht-pvvX79Slzh2oQhm672VZo=/0x0:4833x3266/1200x800/filters:focal(2031x1247:2803x2019)/cdn.vox-cdn.com/uploads/chorus_image/image/67107264/1258077419.jpg.0.jpg)
Oakland A's Matt Olson's Opening Day walk-off grand slam is first in MLB since 1986 - Athletics Nation
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://i.ebayimg.com/images/g/CS0AAOSw871iPQ1Y/s-l1200.webp)
2022 Topps Opening Day Bomb Squad #BS-24 Matt Olson Oakland Athletics A's
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://media.nbcbayarea.com/2020/08/GettyImages-1266385902.jpg?quality=85&strip=all&resize=1200%2C675)
Piscotty Slam Ties It in Ninth, A's Beat Giants 8-7 in 10th – NBC Bay Area
![Oakland A's Matt Olson's Opening Day walk-off grand slam is first](https://dims.apnews.com/dims4/default/97ac035/2147483647/strip/false/crop/3000x2000+0+0/resize/1486x991!/quality/90/?url=https%3A%2F%2Fstorage.googleapis.com%2Fafs-prod%2Fmedia%2Fca43955001594aa1b15ae031f42b8467%2F3000.jpeg)
Judge hits 60th, then Yanks walk off Bucs on Stanton's slam