Steelers and Penguins!
In '84 I was a 20 year old college student at Wayne State University in Detroit when the Tigers won the final game of the World Series at the old Tiger Stadium. I wasn’t at the game, but the next best thing-- I was watching the game in a bar very close to the stadium-- so close if you walked outside you could hear the cheering from the stadium.
So when they won, I was smack dab right in the middle of the pandemonium. Crowds everywhere in the street going nuts. One woman climbed on the hood of a car and took off her clothes and danced. Celebration turned to rioting-- cars overturned; cop cars on fire. One of the guys I was with, who I got separated from, said he saw someone throw a flare into a cop car, tried to grab and remove it, and got slugged by a cop who thought he threw it in.
I saw a guy walking down the street with a big rolled-up piece of grass and turf, which he said he took from the field at Tiger stadium. He was letting anyone who wanted to take chunks of it, so I tore off maybe a 3" x 3" chunk of it. I had it as a souvenir for awhile, but lost it over the years.
NFL: The Cowboys won the Super Bowl following the 1992, 1993, and 1995 seasons.
College basketball: The Baylor Bears, my alma mater, won it all last season.
MLB: The Astros won in 2017. The heartbreak year for me was 1986. I still believe that with a bit more luck in game 6 of the NLCS that year, they would have went on to win the whole thing. Billy Hatcher’s home run off the left field foul pole in the bottom of the 14th inning is the baseball play I remember most clearly.
The Bruins won in 69-70 and 71-72, right after we’d moved to Boston. Then again in 2011 while I tried to follow along from Bangalore India.
The Patriots wins over the past 20 years.
The Red Sox huge win in 2004, then again in 2007, 2013 and 2018. These were the most gratifying for me.
The Celtics wins in 1974 and 1976 never really pinged my radar. I remember 1981, 1984 and 1986 very well, and the 2008 win was really special.
Not mention the Nobel Prizes.
So a long time ago I was a Rangers fan before the NHL struck and shut down and I discovered I didn’t miss hockey at all. They did win once, 1994 after 54 years without winning. Now I don’t even know how they did last year.
Knicks won when I was little and not following anything but Baseball yet. So I never enjoyed a Championship with them. I gave up on the NBA about 15 years ago though. So to me, The Knicks never won it all.
The Giants Superbowl runs were all exciting. Upsetting the Patriots was great, but having started really watching Football around 1973 and suffering through the ineptitude of the Big Blue in the 70s, nothing will match the 1986 Superbowl win. That was an incredible run.
The Yanks have 7 Championships in my life and 20 more before.
1977 was my first and had the excitement of Mr. October as a huge bonus.
1978 was made special by Bucky Fucking Dent deflating the hated Red Sox in the one game playoff at Fenway. The Yanks were 14 back at one point in July. Guidry had one of the greatest seasons of any pitcher ever.
1996 the Yanks were actually the underdogs and were down 0-2 to the Braves, but the team was gritty and rallied well.
1998 was one of the greatest teams in baseball history. A remarkable run.
I will never again match the trifecta of the ultimate underdogs, the 1969 Mets, beating the crap out of the Orioles, plus that same year (approximately) the Jets beating the crap out of the Colts in the Superbowl, plus the Knicks beating the crap out of the Bullets on their way to beating the crap out of the Lakers in the NBA final. I was 16 and a big Mets, Jets, Knicks fan and I should have known it couldn’t last.
I moved to Baltimore in 1979.
Beg to differ. The Kansas Jayhawks, despite all their tournament woes, would have won the 2020 NCAA tourney.
Ah, that’s a perhaps more interesting topic; championship celebrations we’ve personally witnessed. For me the only one would be Wrigleyville when the Cubs clinched the pennant in 2016. It was fully as crazy as you’d imagine; no flaming cop cars, but some drunk guy was convinced I was Joe Maddon and had decided for some reason to come wander around on Clark Street rather than celebrate with the team. (I bear, at best, a passing resemblance to Joe Maddon).
The 2000 Yanks were one of many that got a Ticker Tape parade in Manhattan. It started in Battery Park and went up the Canyon of Heroes.
I was one of the adult supervisors for the Long Branch Marching Band that participated in the parade. So I got to be a part of the parade. Pretty awesome.
As long as we’re doing High School, my chess team won the Nationals. That was an amazing feeling. We won states twice. I played 2nd or 3rd board primarily.
Way back when I was a fan of Bird’s Celtics, they won championships.
I was a Supersonics fan when I was stationed in Washington in 1979. They won the championship that year.
I’m a Blazers fan now. They won in 1977, but haven’t done anything since. The Portland Thorns (women’s soccer league) won the first ever NWSL championship in 2013, then won again in 2017. This year they won the NWSL Challenge Cup, the Women’s International Challenge Cup, and the NWSL Shield. They were #1 in the league this year, but lost in the semi-final match.
Seahawks, yes.
Mariners, still the only MLB team to never even appear in a World Series Game.
But, I lived near Baltimore in the 70s and did get a taste of victory from the Orioles.
There’s actually a good number of Packers fans around here, believe it or not. My cousin, born and raised here, her whole family, 3 boys all teens and husband, are Packers fans. A client of mine, both her kids (teen and tween–all also from the area) are Packers fans. One of the grocery stores I visit here in Chicago on the Southwest Side, two seasons ago at the checkout counter they had some Packers year preview magazine on sale in all the aisles. Yesterday when I was driving near the Dunning/Belmont-Craigin neighborhood, I saw a Packers flag on one of the houses.
It’s weird. The connection between the first, third, and possibly fourth examples is that the family is Polish or the neighborhood is Polish. The second is an Italian family. The Polish connection makes some sort of sense to me as there seems to be an affinity with the Poles – or at least the Poles in my extended family and their friends – in Chicago and Wisconsin (and Indiana and Michigan, as well.) My guess is it has something to do with that. With the other, I think it’s just smart kids. 
Growing up, that blatant show of Packers fandom was just unthinkable, perhaps worse than being a Cubs fan on the South Side (as I was.) People have gotten too permissive and accepting of others as of late. 
When I was a kid, maybe 8 or 9, I was at my neighbor’s house and the Packers game was on. Being a naive kid whose parents never watched sports outside boxing, I rooted for the Packers because their bright yellow and green jerseys appealed to me as a child. My neighbor (a man in his 50s), scolded me. When the Packers scored, I cheered and jumped up and down like a 9-year-old would, and this neighbor finally had enough of me and kicked me out of the house. That day I learned to keep any affinities I have toward Green Bay tightly secreted away.
You were doing so well and then you went off the rails with that last line. 
Actually, ever since I moved to Texas in the mid-80s, I’ve rooted for KU if (who am I kidding) when K-State is eliminated.
Also, even though they never won a title, I rooted for the Kansas City/Omaha Kings when I was growing up.
@ekedolphin
Indiana has nearby MLB teams in every direction (almost.) How do the Nationals fit in?
I didn’t follow baseball when I lived in Indiana. I moved to Hampton Roads, Virginia in 2004, and the Nats came to DC the following year.
A couple years into the Nats’ time in DC, I was out sick from work for a week, and there wasn’t much on for me to watch except for baseball. As a Colts fan, I refused to root for anyone from Baltimore, so I watched the other team on MASN, the Nationals. By the end of that week, I had the batting order pretty much memorized, and knew who was doing well and who wasn’t.
We didn’t do a whole lot of winning in those days, though.
Baseball: I was first a Yankees fan (only game in town at that point), so I was rooting in 1961 and 1962. I started rooting for the Mets in 1966, so saw them win it all in 1969 and 1986.
Football: Jets. Saw them win the Superbowl, and followed it by over half a century of mediocrity.
I don’t root for hockey. I was a Rangers fan, but wasn’t following them when they finally won the Stanley Cup
I did root for Union College in NCAA hockey; they won the Division I championship in 2014. Since all other sports are Division III, that was a big deal.
Packers. I was around but only minimally aware of their 1961 and 1962 championships, celebrated their championships in 65, 66, 67, 96, and 2010.
I’m glad to hear this, because most KSU fans hate the Jayhawks and actively root for them to lose in the tourney, even when they were playing Oklahoma and then Memphis for the title.
A notable exception occurred just last Saturday, when KU beat Texas in football. Every Big 12 fan outside of Austin (and perhaps Norman) was rooting for the Jayhawks!
Arsenal have won the top division (First Division or Premier League) 5 times and the FA Cup 8 times since I have been supporting them.
They’ve never won the Champions League, so I am not sure if those 13 titles count as “won it all”