Emily Giambalvo
@emilygiam.bsky.social
7.6K followers 260 following 99 posts
Washington Post sports + data reporter
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Reposted by Emily Giambalvo
meghanhoyer.bsky.social
The @wpdatateam.bsky.social used hundreds of real people's TikTok data to show how the app sucks people in and keeps them there. In 5 months, the lightest users doubled their time on TikTok (to over an hour a day!), swiped faster and opened the app more: www.washingtonpost.com/wellness/int...
A chart showing that casual users opened TikTok 8 times a day -- up from 4 five months' earlier. Power users opened the app 20 times a day on average, and that stayed constant over time.
emilygiam.bsky.social
Sportsbooks generate far more revenue per dollar wagered on parlays than straight bets.

And yet the popularity of parlays is soaring.

Sportsbooks heavily promote these bets — and many people probably never bother to do the math to understand why they're such a bad deal.

Story: bit.ly/47hUFwJ
Reposted by Emily Giambalvo
tomschad.bsky.social
Terrific work here on parlays, replete with data on just how lucrative they are for sportsbooks.

Craziest stat to me: In Maryland, parlays have made up 36% of sports bet spend this year -- and 67% of sportsbooks' revenue.
emilygiam.bsky.social
How America’s favorite sports bet is fueling sportsbook profits

Parlays are becoming more popular, accounting for an increasing share of the money wagered on sports, according to a Post analysis of betting data. Bettors lose billions a year on these bets.

www.washingtonpost.com/sports/inter...
Americans can’t stop betting parlays. Sportbooks are cashing in.
As betting booms, parlays are accounting for an increasing share of the money wagered on sports, according to a Washington Post analysis of state data.
www.washingtonpost.com
Reposted by Emily Giambalvo
meghanhoyer.bsky.social
This story was the brainchild of sports data reporter @emilygiam.bsky.social, who collaborated with @katiperry.bsky.social and @asteckelberg.bsky.social to allow you to try parlay betting yourself. It's often not pretty
Reposted by Emily Giambalvo
meghanhoyer.bsky.social
Parlays have become incredibly popular, with many betting apps encouraging these high-stakes multi-leg bets. But as legs are added, the chance of winning drops faster than the growth of the potential payout - which means sportsbooks have the advantage. Explore the math and and try your own bets:
Americans can’t stop betting parlays. Sportbooks are cashing in.
As betting booms, parlays are accounting for an increasing share of the money wagered on sports, according to a Washington Post analysis of state data.
www.washingtonpost.com
emilygiam.bsky.social
We simulated what your bank account would look like if you kept betting parlays. Here we consider a five-leg parlay with -110 odds per leg. And we assume you're no better than random chance. (You probably aren't.)

You might get lucky every so often, but breaking even in the long run is very hard.
emilygiam.bsky.social
The sportsbooks’ advantage is obvious in the data: Operators bring in far more revenue for every dollar wagered on these bets than they do straight bets. Parlays account for about one-third of the total amount wagered, but they generate roughly two-thirds of the sportsbooks’ revenue.
emilygiam.bsky.social
But parlays *heavily* favor the operators — not because of the low win rate but because of the math going on behind the scenes.

As legs are added to the bet, the chance of winning drops faster than the growth of the potential payout.

www.washingtonpost.com/sports/inter...
Americans can’t stop betting parlays. Sportbooks are cashing in.
As betting booms, parlays are accounting for an increasing share of the money wagered on sports, according to a Washington Post analysis of state data.
www.washingtonpost.com
emilygiam.bsky.social
How America’s favorite sports bet is fueling sportsbook profits

Parlays are becoming more popular, accounting for an increasing share of the money wagered on sports, according to a Post analysis of betting data. Bettors lose billions a year on these bets.

www.washingtonpost.com/sports/inter...
Americans can’t stop betting parlays. Sportbooks are cashing in.
As betting booms, parlays are accounting for an increasing share of the money wagered on sports, according to a Washington Post analysis of state data.
www.washingtonpost.com
emilygiam.bsky.social
update: this U.S. worlds team kind of feels like an advertisement for the University of Florida gymnastics program
emilygiam.bsky.social
U.S. elite nationals kind of feels like an advertisement for the University of Florida gymnastics program
Reposted by Emily Giambalvo
usagym.org
Introducing: The 2025 U.S. Women’s World Championships Team presented by Xfinity

⭐️ Skye Blakely
⭐️ Dulcy Caylor
⭐️ Joscelyn Roberson
⭐️ Leanne Wong

Non-Traveling Replacement Athletes: Jayla Hang & Ashlee Sullivan
emilygiam.bsky.social
Wow! Dulcy Caylor wins the all-around at the U.S. selection event and earns a spot on the worlds team. A big surprise but she hit today.
emilygiam.bsky.social
And now Claire Pease, who won the U.S. Classic, is also out with an ankle injury.
emilygiam.bsky.social
U.S. national all-around champion and 2024 Olympian Hezly Rivera will not compete at the world championships selection event due to an ankle injury, she said on Instagram.
emilygiam.bsky.social
There's no perfect way to define rosters because they're in flux. We used Sports Reference's rosters and limited to players who appeared in a regular season game.

Fwiw, we tested the analysis with all players on those rosters and by weighting for number of games played, and the trend holds up.
Reposted by Emily Giambalvo
tomschad.bsky.social
Tonight's game isn't just a meeting of NFC heavyweights. It's the league's youngest team (Green Bay) against the oldest in nearly two decades (Washington).

Reporting w/ @emilygiam.bsky.social: www.washingtonpost.com/sports/2025/...
emilygiam.bsky.social
DMV gymnastics alert! Charleigh Bullock, a 15-year-old who trains in Burke, Va., had a great showing at the Junior Pan American Games.

She won five gold medals — team, all-around, bars, beam and floor.

Her top scores this year on bars are the best in the country among juniors and seniors.
usagym.org
drum roll, please 🥁...

Team USA gymnasts won 3️⃣1️⃣ total medals at the Junior Pan American Games!

Artistic athletes added the final five after another successful day of competition in Paraguay! Read More! ⤵️
U.S. gymnasts win five medals on final day of 2025 Junior Pan Am Games • USA Gymnastics
Charleigh Bullock, Addalye VanGrinsven and William McCrea collected the final honors for Team USA at the 2025 Junior Pan American Games, winning five medals to conclude the competition Friday with the...
usagym.org
emilygiam.bsky.social
After rough U.S. Classic, Hezly Rivera's eight solid routines were huge for her.

Another contender: Jayla Hang, who had mistakes Friday but the third-best single-day AA on Sunday. She was great earlier this year. Very much in the mix to win worlds selection event & get automatic spot on team.
emilygiam.bsky.social
There isn't a deep field world medal contenders. But two big developments last night:

– Leanne Wong's Cheng on vault (which immediately boosted her worlds hopes + medal potential)
– Skye Blakely's excellent bars and beam (events where the U.S. field is behind the best gymnasts in the world)
emilygiam.bsky.social
Simone Biles and the other biggest stars from Paris are absent from the competitive floor. A new Olympic cycle has begun.

A look ahead at how this year's group of U.S. gymnasts might fare against the world's best:

www.washingtonpost.com/sports/olymp...
U.S. gymnastics dominance will be tested with Simone Biles and others absent
Hezly Rivera, the lone Olympian in the field at nationals, won the all-around title. She might lead the Americans at worlds this fall.
www.washingtonpost.com