Best Junior Times Ever: An Open Source Record Book

With the April 1st “open season” on the new FINA Junior World Records, there’s very much of a limbo-situation left in the gap between the recognized Junior World Record, and the fastest times ever done by a junior.

And so, below, we’ve made our best attempt at assembling these “Junior World bests,” sticking with FINA’s definition of a ‘junior.” That is to say, girls who are aged 14-17 or boys who are aged 15-18, based on their age on December 31st.

That eliminates some really good, really well-known swims, like Thorpe’s World Record at 18, but in the year he turned 19.

This is where we’re asking for help from our readers. We know we have great readers that know a lot about swimming, and because of the monumental task of tracking down these “bests,” we fully recognize that there’s some we might have missed.

And so, before we settle up with these as Junior World bests, we’re reaching out to our audience to help make sure we haven’t overlooked any. Some were easy to figure out, especially on the girls’ side, where a huge portion of the current World Records were done by swimmers 17 & under.

If you think you’ve found a time that should replace one on this list, leave it in the comments with time, meet, and results if you can find them, and if we can verify, we’ll update the list.

Once suggestions quiet down for a few days, we’ll settle things up (they can always be changed later if one happens to have still been overlooked).

Interestingly, thus far, only two (UPDATED) of these swims is also the Junior World Record – that’s Evgeny Sedov’s 50 fly and Santana’s 100 free.

50 Free 21.98 Evgeny Sedov
100 Free 48.35 Matheus Santana* (McEvoy was 48.0 as an 18-year old, but in his “19th year”)
200 Free 1:43.90 Danila Izotov (still his best time)
400 Free 3:40.59 Ian Thorpe (his 3:40.17 was done at 18, but was in his “19th year”)
800 Free 7:45.67 Mack Horton (Really hard to find this one – Thorpe’s WR wasn’t until his “19th year”)
1500 Free 14:46.84 Sun Yang (14:43.48 from Kieren Perkins was in his “19th year”, UPDATED)
50 Back 25.04 Ryan Murphy (Xu Jiayu in his 19th year)
100 Back 53.38 Ryan Murphy (Hagino in 19th year)
200 Back 1:54.77 Ryosuke Irie (Hagino in 19th year, Peirsol in 19th year, UPDATED)
50 Breast 27.16 (Johannes Skagius)
100 Breast 59.56 Akahiro Yamaguchi (UPDATED)
200 Breast 2:07.01 Akahiro Yamaguchi
50 Fly 23.28 Evgeny Sedov*
100 Fly 51.10 Michael Phelps
200 Fly 1:53.93 Michael Phelps
200 IM 1:55.94 Michael Phelps (UPDATED – Hagino was in his 19th year)
400 IM 4:08.94 Kosuke Hagino (UPDATED)

50 Free 23.99 Cate Campbell
100 Free 53.03 Cate Campbell
200 Free 1:55.06 Missy Franklin
400 Free 3:59.82 Katie Ledecky
800 Free 8:13.86 Katie Ledecky
1500 Free 15:36.54 Katie Ledecky
50 Back 27.22 Fu Yuanhui (UPDATED)
100 Back 58.33 Missy Franklin
200 Back 2:04.06 Missy Franklin
50 Breast 29.48 Ruta Meilutyte
100 Breast 1:04.35 Ruta Meilutyte
200 Breast 2:22.78 Keiko Fukudome (Watanabe faster in 18th year, UPDATED)
50 Fly 25.66 Sarah Sjostrom (done in both 2009 and 2010)
100 Fly 56.06 Sarah Sjostrom
200 Fly 2:04.72 Jiao Liuyang (Jiao Liuyang and Ellen Gandy were faster in their 18th year, while 17)
200 IM 2:07.57 Ye Shiwen
400 IM 4:28.43 Ye Shiwen

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The Chinese guy, Jiayu Xu, went 52.3 in the hundred back a couple days ago, and was still eighteen I believe..


Also, a 1:55.11 200 back, both of which done at Chinese nationals.


Girl’s 200 breast???


McEvoys 100 free was in his 19th year

About Braden Keith

Braden Keith

Braden Keith is the Editor-in-Chief and a co-founder of He first got his feet wet by building The Swimmers' Circle beginning in January 2010, and now comes to SwimSwam to use that experience and help build a new leader in the sport of swimming. Aside from his life on the InterWet, …

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