Uploaded July 2025 | Updated September 2026, 2 weeks ago
Day 4 of the 2025 World Aquatics Championships in Singapore delivered one of the most dramatic nights of racing yet!
🇫🇷 Léon Marchand shattered the 200m Individual Medley World Record, cementing his dominance and sending shockwaves through the swimming world.
🇨🇳 Meanwhile, Pan Zhanle, one of the biggest sprinting stars of the meet, missed the final in the Men’s 100m Freestyle in a stunning twist.
💥 Other highlights include:
Men’s 800m Freestyle Final
Women’s 200m Freestyle Final
Men’s 50m Breaststroke Final
Men’s 200m Butterfly Final
Mixed 4x100m Medley Relay Final
Key semifinal performances from the 100 Free, 50 Back, 200 Fly, and 200 IM
I break down all the top moments, medal surprises, and key takeaways from the night in this vlog-style recap.
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🚀 Train Smarter. Swim Faster.
→ Try my elite RAW SPEED training platform and get 50% OFF your first month with code Singapore50
👉 theswimsuitguy.co.uk/raw-speed
🎽 Still not sure which tech suit is best for you?
Use the free suit match tool: 👉 theswimsuitguy.co.uk/which-tech-suit-should-i-buy
🔔 Subscribe to TheSwimsuitGuy for expert commentary, race analysis, and swimming’s most in-depth tech suit reviews.
#WorldAquaticsChampionships2025 #LeonMarchand #PanZhanle
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swimoutlet.com/?teamid=47870
Day 4 of the 2025 World Aquatics Championships in Singapore delivered one of the most dramatic nights of racing yet!
🇫🇷 Léon Marchand shattered the 200m Individual Medley World Record, cementing his dominance and sending shockwaves through the swimming world.
🇨🇳 Meanwhile, Pan Zhanle, one of the biggest sprinting stars of the meet, missed the final in the Men’s 100m Freestyle in a stunning twist.
💥 Other highlights include:
Men’s 800m Freestyle Final
Women’s 200m Freestyle Final
Men’s 50m Breaststroke Final
Men’s 200m Butterfly Final
Mixed 4x100m Medley Relay Final
Key semifinal performances from the 100 Free, 50 Back, 200 Fly, and 200 IM
I break down all the top moments, medal surprises, and key takeaways from the night in this vlog-style recap.
🛍️ 🚨 BIG SWIM GEAR SALE NOW LIVE!
→ 50% OFF sitewide, including tech suits & caps: 👉 theswimsuitguy.co.uk
🚀 Train Smarter. Swim Faster.
→ Try my elite RAW SPEED training platform and get 50% OFF your first month with code Singapore50
👉 theswimsuitguy.co.uk/raw-speed
🎽 Still not sure which tech suit is best for you?
Use the free suit match tool: 👉 theswimsuitguy.co.uk/which-tech-suit-should-i-buy
🔔 Subscribe to TheSwimsuitGuy for expert commentary, race analysis, and swimming’s most in-depth tech suit reviews.
#WorldAquaticsChampionships2025 #LeonMarchand #PanZhanle
🛒 Buy Tech Suits from SwimOutlet (affiliate):
swimoutlet.com/?teamid=47870










![I tested Caeleb Dressels new tech suit — heres what the data says
Caeleb Dressel left Speedo to co-design a tech suit with a brand most people have never heard of. I flew to Tenerife to test the DeBoer Dressel Speed 1.0 — against the Mizuno GX Sonic VI NV (my benchmark), DeBoers own Cove, and a prototype thats not out yet.
Two days of sprints in T3s flume system with Pablo Marcos at ProEnduranceLab. We measured VO2, blood lactate, muscle oxygenation (Moxy NIRS) and heart rate at constant pace — with stroke rate as the control variable to make sure its the suit doing the work, not me swimming differently.
This is NOT a review. Its a first-look at the data: objective numbers, side-by-side comparisons, and my first impressions of a suit designed by one of the greatest sprinters in history.
🔬 WHAT WE TESTED
→ DeBoer Dressel Speed 1.0 (Caeleb Dressels co-designed race suit — launched March 2025)
→ Mizuno GX Sonic VI NV (benchmark)
→ DeBoer Cove (DeBoers original race suit)
→ [PROTOTYPE] — youll have to watch next video
📊 KEY METRICS
→ Heart rate | Blood lactate | Muscle O2 saturation | Energy expenditure | Stroke rate
⏱️ CHAPTERS
00:00 – Intro
01:03 – Mizuno GX Sonic VI NV Overview
01:50 – First Look at DeBoer Dressel Speed 1.0
02:26 – DeBoer Cove Overview
02:54 – What was tested
06:27 - Trying the DeBoer Dressel Speed 1.0
09:08 - Testing DeBoer Cove Tech Suit
10:32 - Results
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https://www.swimoutlet.com/?teamid=47870
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https://www.theswimsuitguy.com/which-tech-suit-should-i-buy
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https://www.theswimsuitguy.com/swim-programs
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https://www.theswimsuitguy.com/shop-collection
*All testing conducted at T3 Tenerife Flume, ProEnduranceLab, by Pablo Marcos. Constant pace 2.10 m/s. Stroke rate held within 2% across all suits to isolate suit-driven physiological differences. Not a sponsored video unless stated otherwise.* I tested Caeleb Dressels new tech suit — heres what the data says](https://i.ytimg.com/vi/wOcixig-XKM/mqdefault.jpg)