Shaine Casas Moves Up To #3 All-Time Amongst Americans With 50.40 100 Fly


Just a few hours after he “waved a warning flag” with his 26.56 back half split this morning, Shaine Casas went on to swim a 50.40 100 fly tonight, tying himself for third-fastest of all time amongst American men alongside Ian Crocker. In addition, he also ties for the sixth-fastest of all time in the event overall. Casas’ time was faster than what it took to win silver at the World Championships this year.

All-Time Rankings, Men’s 100 Fly:

  1. Caeleb Dressel, United States — 49.45 (2021)
  2. Kristof Milak, Hungary — 49.68 (2021)
  3. Michael Phelps, United States — 49.82 (2009)
  4. Milorad Cavic, Serbia — 49.95 (2009)
  5. Joseph Schooling, Singapore — 50.39 (2016)
  6. Ian Crocker (2005)/Shaine Casas (2022) — 50.40

Casas paced his race completely different than this morning. In prelims, he back-ended his race, opening in 24.48 and closing in a 26.56 that was just 0.11 seconds off Caeleb Dressel’s 26.45 back half from his world record swim. Tonight, Casas pushed the front half of his race more, this time opening in a 23.31 and closing in 27.09.

Previously’ Casas’ personal best was the 50.56 that he swam at Austin Sectionals earlier this month.

Just a year ago, Casas was known to be primarily a backstroker in long course. After making the move from Texas A&M to train with Eddie Reese at the University of Texas, he has began to show off his versatility, having posted elite times in the 100 free, 100/200 back, 100 fly, and 200 IM. However, he is ranked higher in the all-time rankings for the 100 fly he is for any of his other events, including the 200 back (the race where he took bronze at Worlds).

The scariest thing about this is that in Casas’ post-race interview, he said that he wasn’t happy with his time and wanted to go faster. What could his ceiling be?

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7 months ago

He should drop 100 back as the field is way too stacked and focus on 100 free/fly as 2024 Trials are rolling by…(free mostly for relay purposes)

7 months ago

Ties Crocker’s LEGENDARY 2005 Montreal World Championships 50.40, which Phelps himself considered to be his “worst beatdown” ever.

Former swimmer
7 months ago

Rooting for him. I hope he just gets better and better.

7 months ago

Dang!!! I was on the Shane train, fell off, but now I am back on. This guy is amazing

7 months ago

This guy will break 50 by 2024 olympics

Reply to  Meathead
7 months ago

I agree. But who else will? The field never stands still

Reply to  Meathead
7 months ago

But, breaking 50 is something Dressel routinely does and even Milak has done.

7 months ago

ayo PVDH, I thought this guy was washed up?

Reply to  ReneDescartes
7 months ago

Lemme know when he contributes anything significant to team USA. You’ll be waiting forever.

Reply to  Pvdh
7 months ago

is a third place in the 200 bk at worlds not significant…? behind ryan murphy…?

Reply to  Pvdh
7 months ago

Oh shut up Short course world champs

Reply to  Austinpoolboy
7 months ago

He had a pretty good medal haul though his 100bk gold swim time wasn’t really very fast compared to some of the isl guys times

I’m waiting for the duel meet with Australia before I get back on the train

7 months ago

He’s already faster than Phelps ever was in the post-supersuit era (2010-16).

Reply to  Casasblanca
7 months ago

Joe Schooling is still faster

Gen D
7 months ago

the guy called it! a couple of years ago he said “I’m a flyer, it just hasn’t surfaced yet”

looking forward to seeing what he can do!

Reply to  Gen D
7 months ago

Freshman year I remember that was kinda weird he switched to fly for ncaas

About Yanyan Li

Yanyan Li

Although Yanyan wasn't the greatest competitive swimmer, she learned more about the sport of swimming through scoring countless dual meets, being a timer, and keeping track of her teammates' best times for three years as a team manager. She eventually ventured into the realm of writing and joined SwimSwam in …

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