| class="mw-datatable wikitable sortable succession-box" style="font-size:85%; text-align:center;" width="100%"
!#
!Event
!Date
!City
!Venue
!Main Event
!Ref. |
| –
|TNA 1st Anniversary Show
|June 18, 2003
|rowspan="2"|Nashville, Tennessee
|rowspan="2"|Nashville Fairgrounds
|AJ Styles and Syxx-Pac vs. Jeff Jarrett and Sting
| |
| –
|TNA 2nd Anniversary Show
|June 23, 2004
|Jeff Jarrett (c) vs. Ron Killings for the NWA World Heavyweight Championship
| |
| 1
|Slammiversary (2005)
|June 19, 2005
|rowspan="2"|Orlando, Florida
|rowspan="2"|Impact Zone (Universal Studios Florida)
|A.J. Styles (c) vs. Abyss vs. Monty Brown vs. Raven vs. Sean Waltman in a King of the Mountain match for the NWA World Heavyweight Championship
| |
| 2
|Slammiversary (2006)
|June 18, 2006
|Christian Cage (c) vs. Abyss vs. Jeff Jarrett vs. Ron Killings vs. Sting in a King of the Mountain match for the NWA World Heavyweight Championship
| |
| 3
|Slammiversary 2007
|June 17, 2007
|Nashville, Tennessee
|Nashville Municipal Auditorium
|A.J. Styles vs. Chris Harris vs. Christian Cage vs. Kurt Angle vs. Samoa Joe in a King of the Mountain match for the vacant TNA World Heavyweight Championship
| |
| 4
|Slammiversary 2008
|June 8, 2008
|Southaven, Mississippi
|DeSoto Civic Center
|Samoa Joe (c) vs. Booker T vs. Christian Cage vs. Rhino vs. Robert Roode in a King of the Mountain match for the TNA World Heavyweight Championship with Kevin Nash as special guest enforcer
| |
| 5
|Slammiversary Seven
|June 21, 2009
|Auburn Hills, Michigan
|The Palace of Auburn Hills
|Mick Foley (c) vs. A.J. Styles vs. Jeff Jarrett vs. Kurt Angle vs. Samoa Joe in a King of the Mountain match for the TNA World Heavyweight Championship
| |
| 6
|Slammiversary VIII
|June 13, 2010
|rowspan="2"|Orlando, Florida
|rowspan="2"|Impact Zone (Universal Studios Florida)
|Rob Van Dam (c) vs. Sting for the TNA World Heavyweight Championship
| |
| 7
|Slammiversary IX
|June 12, 2011
|Jeff Jarrett vs. Kurt Angle to become number one contender to the TNA World Heavyweight Championship and the Olympic gold medal
|[{{cite web|url=http://pwtorch.com/artman2/publish/TNA_News_1/article_46769.shtml|title=TNA News: TNA reveals date & location for annual Slammiversary PPV, updated 2011 TNA PPV dates|first=James|last=Caldwell|date=2011-01-14|publisher=Pro Wrestling Torch|access-date=2011-01-14}}] |
| 8
|Slammiversary 10
|June 10, 2012
|Arlington, Texas
|College Park Center
|Bobby Roode (c) vs. Sting for the TNA World Heavyweight Championship
| |
| 9
|Slammiversary XI
|June 2, 2013
|Boston, Massachusetts
|Agganis Arena
|Bully Ray (c) vs. Sting in a No Holds Barred match for the TNA World Heavyweight Championship
| |
| 10
|Slammiversary XII
|June 15, 2014
|Arlington, Texas
|College Park Center
|Eric Young (c) vs. Austin Aries vs. Lashley in a three-way steel cage match for the TNA World Heavyweight Championship
| |
| 11
|Slammiversary 2015
|June 28, 2015
|rowspan="3"|Orlando, Florida
|rowspan="3"|Impact Zone (Universal Studios Florida)
|Bobby Roode vs. Drew Galloway vs. Eric Young vs. Jeff Jarrett vs. Matt Hardy in a King of the Mountain match for the inaugural TNA King of the Mountain Championship
| |
| 12
|Slammiversary 2016
|June 12, 2016
|Drew Galloway (c) vs. Lashley in a Tap Out or Knockout match for the TNA World Heavyweight Championship
|[{{cite web|url=http://impactwrestling.com/slammiversary-main-event-set-galloway-vs-lashley-with-knockout-or-tap-out-stipulation/|title=Slammiversary Main Event Set: Galloway vs Lashley With Knockout or Tap Out Stipulation|publisher=Impact Wrestling|access-date=2016-06-02}}] |
| 13
|Slammiversary XV
|July 2, 2017
|Lashley (Impact Wrestling World Heavyweight Championship) vs. Alberto El Patrón (GFW Global Championship) in a Title vs. title Winner takes all match
| |
| 14
|Slammiversary XVI
|July 22, 2018
|Toronto, Ontario, Canada
|The Rebel Complex
|Austin Aries (c) vs. Moose for the Impact Wrestling World Heavyweight Championship
| |
| 15
|Slammiversary XVII
|July 7, 2019
|Dallas, Texas
|Gilley's Dallas
|Sami Callihan vs. Tessa Blanchard
|[{{Cite web|url=https://www.fightful.com/wrestling/impact-wrestling-announces-venue-slammiversary-xvii|title=IMPACT Wrestling Announces Venue For Slammiversary XVII {{!}} Fightful Wrestling|website=www.fightful.com|language=en|access-date=2019-05-20}}][{{Cite web|url=https://www.fightful.com/wrestling/impact-wrestling-slammiversary-xvii-set-july-7-dallas|title=IMPACT Wrestling Slammiversary XVII Set For July 7 In Dallas {{!}} Fightful Wrestling|website=www.fightful.com|language=en|access-date=2019-04-29}}] |
| 16
|Slammiversary 2020
|July 18, 2020
|rowspan="3"|Nashville, Tennessee
|rowspan="2"|Skyway Studios
|Ace Austin vs. Eddie Edwards vs. Eric Young vs. Rich Swann vs. Trey in a Five-way elimination match for the vacant Impact World Championship
|[{{cite web|url=https://impactwrestling.com/impact-on-axs-tv-results-june-9-2020/|title=IMPACT On AXS TV Results: June 9, 2020|publisher=Impact Wrestling|date=9 June 2020}}] |
| 17
|Slammiversary 2021
|July 17, 2021
|Kenny Omega (c) vs. Sami Callihan in a no disqualification match for the Impact World Championship
|[{{Cite web|last=Lambert|first=Jeremy|title=IMPACT Teases Released WWE Superstars In Slammiversary Video, Dates Announced For IMPACT+ Events|url=https://www.fightful.com/wrestling/impact-teases-released-wwe-superstars-slammiversary-video-dates-announced-impact-events|work=Fightful Wrestling|date=April 25, 2021|access-date=April 25, 2021}}] |
| 18
|Slammiversary 2022
|June 19, 2022
|Nashville Fairgrounds
|Josh Alexander (c) vs. Eric Young for the Impact World Championship
| |
| 19
|Slammiversary 2023
|July 15, 2023
|Windsor, Ontario, Canada
|St. Clair College
|Alex Shelley (c) vs. Nick Aldis for the Impact World Championship
|[{{cite web|url=https://www.fightful.com/wrestling/impact-wrestling-announces-date-and-location-slammiversary-2023|title=IMPACT Wrestling Announces Date And Location For Slammiversary 2023|work=Fightful|first=Colin|last=Tessier|date=March 24, 2023|access-date=March 25, 2023|archive-url=https://web.archive.org/web/20230325121241/https://www.fightful.com/wrestling/impact-wrestling-announces-date-and-location-slammiversary-2023|archive-date=March 25, 2023|url-status=live}}] |
| 20
| Slammiversary 2024
| July 20, 2024
| Montreal, Quebec, Canada
| Verdun Auditorium
| Moose (c) vs. Josh Alexander vs. Steve Maclin vs. Nic Nemeth vs. Frankie Kazarian vs. Joe Hendry in a Six-way elimination match for the TNA World Championship
| [{{Cite web |title=Slammiversary & TNA iMPACT! Come to Montreal, Quebec This July – TNA Wrestling |url=https://tnawrestling.com/2024/04/20/slammiversary-tna-impact-come-to-montreal-quebec-this-july/ |access-date=2024-04-24 |language=en-US}}] |
| 21
| Slammiversary 2025
| July 20, 2025
| Elmont, New York
| UBS Arena
| TBD
| [{{cite web|last=Lambert|first=Jeremy|title=TNA Announces Locations For TNA Rebellion And TNA Slammiversary 2025|url=https://www.fightful.com/wrestling/tna-announces-locations-tna-rebellion-and-tna-slammiversary-2025|work=Fightful|date=December 4, 2024|access-date=December 4, 2024}}] |
| colspan="11" |{{center|(c) – refers to the champion(s) heading into the match}} |