How Leon Marchand Took Down Kristof Milak In The Olympic 200 Fly Final

Courtesy: Dominique Hérailh

This data is courtesy of the French Swimming Federation.

The French Swimming Federation has released detailed statistics on all the swimming finals at the Paris Olympics, and one of the most intriguing races of the meet, the men’s 200 fly, offers some interesting insights.

Let’s start with a general analysis of the race before going into detail. Although this article’s subject is related to the duel between Leon Marchand and Kristof Milak, it’s important to add a third man who will play an important role in the coming years, Canadian bronze medalist Ilya Kharun.

This first table gives a breakdown of the 200-meter event and the portion each athlete spent underwater.

L. Marchand K. Milak I. Kharun
Underwater Distance (m) 58.1 51.6 54.4
Time Underwater (sec) 27.86 24.46 26.44
Value in m/sec (D/T) 2.085 2.109 2.057
Swimming distance 141.9 148.4 145.6
Time Over The Water (sec) 83.35 87.29 86.36
Value in m/sec (D/T) 1.702 1.700 1.686
  • The total distance traveled underwater shows the advantage that Marchand has off the walls. Milak only travels 88.8% of Marchand’s distance underwater and Kharun is at 93.6% of his former ASU teammate.
  • The speed of the underwaters brings a slight surprise. Milak is slightly faster (2.109 vs 2.085) than Marchand under the water overall, though all of his advantage came off the blocks. If we do not take into account the start in which Milak outclassed all his opponents (see table below in the article), the other three underwaters are to Marchand’s advantage (1.856 vs. 1.833 for Milak and 1.820 for Kharun).
  • The swimming speed is similar between Marchand and Milak (1.702 vs 1.700) while Kharum is at 1.686.

First takeaway: Marchand has room to make up at the start while Milak has room to make up underwater.

Now, let’s break down the race by 50.

The reaction time was the same for all three swimmers: 0.67 seconds. Note however that these are the three slowest times in the field, with the fastest being Krzysztof Chmielewski (0.61).

Start To 15 Meters

L. Marchand K. Milak I. Kharun
Time (sec) 5.65 5.39 5.74
Value in m/sec (D/T) 2.65 2.78 2.61

Milak and Marchand’s 15-meter times are 1-2 in the field, while Kharun is 4th behind Noe Ponti.

15 Meters To 50 Meters

L. Marchand K. Milak I. Kharun
Time (sec) 19.31 18.93 19.32
Value in m/sec (D/T) 1.813 1.849 1.812

Milak has opened up a gap in this first leg. He increased his 15-meter lead from 0.26 to 0.64. The speeds of Marchand and Kharun are essentially identical.

First Turn

L. Marchand K. Milak I. Kharun
Underwater (m) 14.95 13.46 13.82
Time (sec) 7.87 7.15 7.42
Value in m/sec (D/T) 1.90 1.88 1.86

Not only did Marchand travel the farthest off the first turn, but he was also traveling the fastest which allowed him to gain 12 one-hundredths under water. The 15-meter splits were: Marchand 7.90, Milak 8.02 and Kharun 8.10. At 65 meters the situation is as follows: Milak 32.34, Marchand +0.52 and Kharun +0.82.

65 Meters to 100 Meters

L. Marchand K. Milak I. Kharun
Time (sec) 20.60 20.52 20.51
Value in m/sec (D/T) 1.699 1.705 1.706

In this segment, Milak did not completely absorb the advantage of Marchand obtained on the underwater, but was close (0.08 vs 0.12). Kharun, seeing himself slightly behind at 65 meters, produced his effort to try to catch up with the two leading swimmers. At 100 metres the ranking is as follows: Milak 52.86, Marchand +0.60 and Kharun +0.81.

Second turn

L. Marchand K. Milak I. Kharun
Underwater Distance (m) 13.20 11.75 12.52
Time (sec) 7.14 6.40 6.96
Value in m/sec (D/T) 1.849 1.836 1.799

Again, Marchand traveled the farthest and was the fastest underwater. At 115 meters, Milak held the lead with a time of 1:01.06 followed by Marchand +0.57 and Kharun +1.05

115 Meters To 150 Meters

L. Marchand K. Milak I. Kharun
Time (sec) 20.61 20.46 20.93
Value in m/sec (D/T) 1.698 1.711 1.672

While Marchand was perfectly consistent in scoring the same time with a hundredth of a second as he did from 65 to 100, Milak put in a surge that may have compromised his chances of winning. At 150 metres the ranking was as follows: Milak 1:21.52, Marchand +0.72 and Kharun +1.52.

Third turn

L. Marchand K. Milak I. Kharun
Underwater Distance (m) 14.11 11.11 12.39
Time (sec) 7.76 6.26 6.90
Value in m/sec (D/T) 1.818 1.774 1.795

The third turn marks the start of the climb that will see Marchand close the fastest and ultimately win. At 165 meters, Milak was still leading with a time of 1:30.09 followed by Marchand at 0.41 and Kharun +1.44.

165 Meters To 200 Meters

L. Marchand K. Milak I. Kharun
Time (sec) 20.71 21.66 21.27
Value in m/sec (D/T) 1.690 1.616 1.646

At the finish, Marchand touched in 1:51.21 followed by Milak (1:51.75) and Kharun (1:52.80).

Marchand’s consistency over the last three 50s over the water (35-meter speed is notable: 1.699, 1.698 and 1.690, a standard deviation of 0.00411. So we can think that he built his race by measuring his efforts up to 150 meters without worrying about the lead taken by Milak.

Milak was far less consistent across the closing three 50s over the water. His speeds were 1.705, 17.11 and 1.616, a standard deviation of 0.04342.

Kharun also measured his efforts better than Milak: 1.706, 1.672 and 1.646 for a standard deviation of 0.02463 or a lower dispersion of data than those of Milak but shy of Marchand.

This last graph shows the underwater speeds achieved during the 3 turns. The third turn clearly shows the drop in Milak’s regime which will be confirmed in the last length.

Conclusion

In my opinion, Marchand won because he built his race better than Milak. Swimming with more consistency, he was able to keep something in reserve to finish his last 50 in 28.97 which is more than one second faster than Milak. On the other hand, the length of his underwaters and the speed with which he made them allowed him to remain in contact until the last 50.

Milak was perhaps too confident that he could establish an early lead and stay away, or knew going out fast was his best chance to win. His push on the third 50 resulted in him not leaving enough in the tank for the last length, where Marchand made his move. Knowing that he was perhaps a little short in closing speed, he tried to build up an advance before the last leg but this proved insufficient.

Kharun made a race that is somewhat symmetrical with Marchand’s but less effective in the underwaters and a little slower over the water.

Anyway, these three swimmers gave us a show that made not only the spectators of the Arena Défense but also all those who were in front of their screens. Michael Phelps’s reaction, filmed by NBC, will be remembered forever.

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Entgegen
53 minutes ago

Would love to see the 200 br breakdown since his strategy was the opposite from this 200 fly, take it out and hang on

Snowstorm
1 hour ago

Marchand’s last underwater in this race was the most beautiful swimming I’ve ever seen.

OldNotDead
1 hour ago

not sure about the last line in the article – “…will be…remembered forever” I had forgotten all about it.

FSR
2 hours ago

One thing that is also worth considering is for those who do shorter underwaters the data for average speed (i am assuming that is what we are seeing here) will be effected more by the push off the wall. Since the push off the wall and the short subsequent period of deceleration are the fastest portions of the UW, and the UW is significantly shorter than another persons, then it will have a greater influence on the metric of average speed.

Boxall's Railing
2 hours ago

Wow, love this analysis!

Was also surprised at Milak’s average speed for time spent underwater was faster than Marchand’s, but Marchand’s underwater speed was so much better than Milak’s over-the-water speed, that was the difference (on paper).

Most interesting is knowing m/s for underwater segments of the race. This is such helpful data for a swimmer to have, and I’m guessing very few know their average “m/s” for underwater of different races / the ideal distance to kick out based on metrics rather than just feel.

And when your average underwater speed (not incl start) in a 200 fly is the speed of 26.9 per 50m (50/1.856) like Marchand’s …yeah, you want to max the hell out of your… Read more »

swifter
2 hours ago
  • Milak is the better butterfly swimmer.
  • Marchand was in better shape.

The rest are just the aggregate details that compose those two simple facts.

bigNowhere
Reply to  swifter
2 hours ago

In Bowman’s recent interview he mentioned that they had noticed that Milak had not finished a 200 fly strong all year. He’d had fast times, but he hadn’t shown a great final 50. So, they knew that Milak would tie up in the last 50 and planned to exploit that.

Mclovineta
Reply to  bigNowhere
49 minutes ago

For me this is just bllshit, Milak went 1’51’7, had he swam near his best Marchand wouldnt have beaten him, no matter how strong he finished. This is not running or cycling where you gain from drafting.

grandDist
3 hours ago

I disagree, it had nothing to do with strategy. Milak didn’t have the endurance, period. He did not train for it. He could have started, continued, finished a 100 ways, he had no chance against Marchand who did do the work. You can’t wing the 200 fly.

mvnjuan
Reply to  grandDist
3 hours ago

if u believe he missed all that training i cant save u

yamatake
Reply to  grandDist
3 hours ago

I agree. Milak last 50 was 30.23, a terrible split by his standard. He closed in 29 low when he was in good form. His endurance is not there.

Last edited 3 hours ago by yamatake
snailSpace
Reply to  grandDist
2 hours ago

“Milak didn’t have the endurance, period” might be a bit harsh when talking about a 1:51 200 fly, but I agree with the general sentiment.

Unnamed
Reply to  snailSpace
2 hours ago

Maybe “Milak didn’t have the endurance to beat Marchand” would be better?

grandDist
Reply to  Unnamed
33 minutes ago

Milak did not have the endurance he used to have when he trained like a normal swimmer

snailSpace
3 hours ago

It’s interesting to see how great Milak’s start has became over the last 3 years. It was really quite bad in 2021 and before that – I vaguely remember him talking about how impressed he was by Dressel’s starts, and how they gave him a body length advantage off the blocks already.
Also worth mentioing that his UWs were much better in 2022 than this year – I remember him outclassing the field after the turn in the 100 fly semis and final, whereas this year Liendo’s turn and UW were much better than his. His freestyle UWs were also impressive in Rome that same year.