Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Triathlon · T100
T100 Yokohama 2027
- Race day
- Saturday, 15 May 2027
- Location
- Yokohama, Japan
- Distance
- 100 km total
2km swim 80km bike 18km run
T100 Yokohama 2027: date, entry, what's known so far, and Yamashita Park's WTCS course history for this brand-new Japanese venue.
247 days to go
Key Race Metrics & Overview
- Date
- Saturday, 15 May 2027
- Venue
- Yokohama waterfront (exact swim/bike/run/transition venue not yet announced by T100). Yamashita Park and the Minato Mirai waterfront have hosted WTCS Yokohama for years and are the obvious infrastructure to reuse, but this has not been confirmed for the 2027 race.
- Distance
- T100 — 100km total
- Start Time
- Not published — this is a brand-new venue with no athlete guide out yet, and even the age-group race format itself hasn't been confirmed.
- Draft-Legal Bike
- No — non-drafting
- Cut-Off
- Not published for this event — no precedent exists for a T100-format race at this venue.
Also this weekend
Nothing beyond the bare 15-16 May 2027 date and 'age-group distances TBC' has been published for Yokohama. This is a materially different situation from every other T100 venue in this dataset except London: independent press coverage of the 2027 PTO/World Triathlon calendar consistently places Yokohama's elite race on the new T50 World Championship Tour (the rebranded WTCS, raced at Olympic distance — 1.5km/40km/10km) rather than on the T100 elite tour. The organiser's own T100 Age-Group World Championships page lists Yokohama among venues where age-group distances are still to be confirmed. Don't assume Yokohama will offer the full 100km distance, an Olympic distance, or both, until the organiser actually says so — reporting suggests this detail is expected around the World Triathlon Congress in Pontevedra (September 2026) and an 'official launch' in Q1 2027.
Leg 1 of 3
Swim — 2km
The organiser has published nothing beyond the bare date and location for Yokohama — no beach, marina or course layout, and no confirmation the age-group race will even be the full 2km T100 swim distance rather than a shorter one. WTCS Yokohama precedent, NOT confirmed for T100/T50 2027: the elite race has swum roughly 1,500m in Yokohama Port off Yamashita Park for years. Independent reporting on the 2027 calendar places Yokohama's elite race on the new T50 World Championship Tour (Olympic distance) rather than the T100 tour, which is a real signal the eventual age-group swim could end up shorter than the 2km figure shown here — treat the number in this field as a T100-format placeholder, not a confirmed distance.
- Venue
- Yokohama Bay (exact venue not yet announced)
- Elevation gain
- No official figure published — see notes above
- Surface
- Sea — open water in Yokohama Bay/Yokohama Port.
Wetsuit: Not published for this event. WTCS Yokohama precedent, NOT confirmed for T100/T50 2027: mid-May sea temperature in Yokohama Bay has historically sat around 19-20°C (the 2022 WTCS Yokohama swim was contested at 19.7°C) — comfortably inside the wetsuit-legal band under the general World Triathlon/T100 threshold of roughly 24.5°C, so a wetsuit swim looks likely, but no rule has been published for this venue.
Leg 2 of 3
Bike — 80km
No route map or course description has been published for T100 Yokohama. WTCS Yokohama precedent, NOT confirmed for T100/T50 2027: the elite Olympic-distance bike course has run 10 laps of 4km (40km total) through Minato Mirai, passing the Red Brick Warehouse (Akarenga Soko), the Kanagawa Prefectural Government Office and the Minato Mirai 21 district. An 80km T100-format bike leg for Yokohama would need a substantially different, longer route than this precedent — nothing about that longer course has been described anywhere.
- Venue
- Yokohama (exact route not yet announced)
- Elevation gain
- No official figure published — see notes above
- Surface
- Road — flat, per the WTCS Yokohama precedent course; not confirmed for T100/T50 2027.
Non-drafting
Leg 3 of 3
Run — 18km
No route map or course description has been published for T100 Yokohama. WTCS Yokohama precedent, NOT confirmed for T100/T50 2027: the elite Olympic-distance run has been 4 laps of 2.5km (10km total) along the Yamashita Park waterfront. An 18km T100-format run for Yokohama would need a longer route than this precedent, likely more laps of a similar loop — nothing about that has been confirmed.
- Venue
- Yokohama (exact route not yet announced)
- Elevation gain
- No official figure published — see notes above
- Surface
- Road/waterfront path — flat, per the WTCS Yokohama precedent course; not confirmed for T100/T50 2027.
Transitions
Not published. WTCS Yokohama has traditionally run a single transition zone at Yamashita Park serving both legs of the elite race — a plausible model for a T100 age-group race here, but unconfirmed.
T100 Yokohama Split Calculator
T100 Yokohama Split-Time Calculator
Enter your own swim, bike and run pace to project a real finish time.
Projected Finish Time
5:03:00
Racing a different distance? Try the generic split calculator or the swim pace calculator.
Where T100 Yokohama starts and finishes
T100 Yokohama starts at Yokohama waterfront (exact swim/bike/run/transition venue not yet announced by T100). Yamashita Park and the Minato Mirai waterfront have hosted WTCS Yokohama for years and are the obvious infrastructure to reuse, but this has not been confirmed for the 2027 race. and finishes at Yokohama Bay (exact venue not yet announced). We haven't been able to place those on a map accurately enough to show one — a pin in the wrong place is worse than no pin.
These are the start and finish points, not the route. Verus doesn't hold course files for this race, and drawing a line between two pins would be a guess you might end up training on.
What you can qualify for
Not confirmed for this venue. T100's general qualification structure sends the Top 10 finishers per age group and gender at a 100km T100 race to the T100 Age-Group World Championships in Qatar, but the organiser's own Age-Group World Championships page lists Yokohama among venues with age-group distances still TBC — meaning it isn't yet clear whether a Yokohama age-group race will even be run at the qualifying 100km distance, let alone confirmed as a qualifying race itself.
Entry & Ballot
Direct entry summary
Yokohama was added to the T100 site's 2027 'Triathlon World Tour' listing as a brand-new venue, dated 15-16 May 2027, with entry currently at 'Priority Access' sign-up only and no pricing published. The listing itself says only 'age-group distances TBC.' Separately, the PTO and World Triathlon jointly announced (September 2026) a restructured Triathlon World Tour splitting elite racing into two tiers — a T100 World Championship Tour and a new T50 World Championship Tour (the rebranded WTCS, Olympic distance) — and independent press coverage of that calendar places Yokohama's elite race on the T50 tour, not T100. Yokohama is not new to hosting triathlon: Yamashita Park and the Minato Mirai waterfront have run WTCS Yokohama for years, giving the city real large-scale event infrastructure even though this specific T100/T50 2027 race has never happened before.
Ballot policy
Not a ballot — priority access sign-up now, with full registration to follow.
Age requirement
Not published for this event.
Charity Places
No charity-place scheme was found published for this event.
Race Day Info & Checklist
On the day
- The single biggest open question for this venue is distance, not logistics: press coverage of the 2027 PTO/World Triathlon calendar split places Yokohama's elite race on the new T50 World Championship Tour (Olympic distance) rather than the T100 tour, while the T100 site itself still lists the venue as 'T100 Yokohama' with 'age-group distances TBC.' Don't book travel assuming this will be a full 100km race until the organiser confirms it.
- WTCS Yokohama precedent, NOT confirmed for T100/T50 2027: the elite Olympic-distance race has run out of Yamashita Park for years — a roughly 1,500m swim in Yokohama Port, a 10-lap (40km) bike course through Minato Mirai past the Red Brick Warehouse and the Kanagawa Prefectural Government Office, and a 4-lap (10km) run along the Yamashita Park waterfront.
- Qualification pathways and venue-level age-group distance detail are reported to be expected around the World Triathlon Congress in Pontevedra (September 2026), with 'brand specifics' for the wider Triathlon World Tour due at an 'official launch' in Q1 2027 — worth checking the official site again once that has happened.
- Getting there: the practical airport is Tokyo Haneda (HND), roughly 30 minutes to Yokohama Station on the Keikyu Line rapid express. Narita (NRT) works too but is a longer trip — around 87 minutes on the Narita Express, or a cheaper Keikyu/Asakusa-line combination via Sengakuji Station in roughly 100 minutes.
- Mid-May in Yokohama is generally mild and one of the more comfortable times to visit — average highs around 23°C (73°F), lows around 14°C (56°F), and roughly a one-in-three chance of rain on any given day.
- Most major triathlon-sending countries (the UK, most of the EU, the US, Canada, Australia and New Zealand among them) sit on Japan's visa-exemption list for short tourist stays of up to 90 days, per the Ministry of Foreign Affairs of Japan — but the list runs to around 74 countries/regions, not every country, so check your own passport against the official MOFA list rather than assuming visa-free entry.
Checklist
- Patience with logistics as a genuinely new venue — course maps, distance confirmation and race-day rules are all still to come
- A wetsuit, pending confirmation — WTCS Yokohama precedent puts mid-May water around 19-20°C, likely wetsuit-legal, but this is not confirmed for T100/T50 2027
- Layered kit for a mild but breezy mid-May race weekend (roughly 14-23°C)
- Passport and, if required, a visa checked against Japan's current visa-exemption list well ahead of travel
- A close eye on the official Triathlon World Tour page as this listing gets built out — most specifics, including the age-group distance itself, don't exist yet
Transport, Spectating & Where to Stay
Transport
Tokyo Haneda (HND) is the practical airport, roughly 30 minutes to Yokohama Station via the Keikyu Line rapid express. Narita (NRT) is a longer trip — about 87 minutes on the Narita Express, or a cheaper Keikyu/Asakusa-line route via Sengakuji Station in roughly 100 minutes. No T100/T50-specific transport plan has been published.
Not published for this event.
Not published for this event. WTCS Yokohama precedent (not confirmed for 2027) has involved road closures around Yamashita Park and the Minato Mirai waterfront for the bike and run legs.
Spectator guide
Not published for this event. WTCS Yokohama precedent (not confirmed for 2027): lapped bike and run courses through Minato Mirai and along the Yamashita Park waterfront have historically made for good repeat-viewing spectator spots.
Not published for this event.
Where to stay
Minato Mirai
+ Yokohama's modern waterfront district, and the area WTCS Yokohama's bike course has run through for years — plausible race-weekend hub if T100/T50 reuses similar infrastructure, though unconfirmed.
– Distance to the actual 2027 venue is unconfirmed until course details are published.
Yamashita Park / Kannai
+ The historic host area for Yokohama's elite triathlon racing, close to the waterfront and Chinatown.
– Same caveat — nothing about the 2027 venue has been confirmed yet.
Frequently Asked Questions
When is T100 Yokohama 2027?
15-16 May 2027 — a brand-new venue for the T100 site's Triathlon World Tour listing, currently at Priority Access sign-up only with no pricing published.
Is T100 Yokohama actually a T100 race, or a T50 race?
Genuinely unclear as of research. The T100 site lists the venue as 'T100 Yokohama' with age-group distances TBC, but independent reporting on the PTO/World Triathlon 2027 calendar split places Yokohama's elite/pro race on the new T50 World Championship Tour (the rebranded WTCS, Olympic distance) rather than the T100 tour — a situation only London shares elsewhere in this dataset. Whether the paired age-group race ends up at the full 100km T100 distance or switches to Olympic distance has not been confirmed by the organiser.
What distance does T100 Yokohama offer?
Not confirmed. The organiser's own listing says only 'age-group distances TBC.' This file shows the standard T100 100km numbers (2km/80km/18km) for schema consistency with the rest of this site's T100 entries, but that is a placeholder, not a confirmed distance — Olympic distance (1.5km/40km/10km) is a real possibility given the elite race's likely T50 placement.
Has Yokohama hosted triathlon before?
Yes, extensively — Yamashita Park and the Minato Mirai waterfront have hosted World Triathlon Championship Series (WTCS) Yokohama for years, with a well-established Olympic-distance course (roughly 1,500m swim, 40km bike, 10km run). T100/T50 itself has never raced there, but the city is far from a blank slate as a triathlon host.
Do you need a wetsuit at T100 Yokohama?
Not officially stated. WTCS Yokohama precedent (not confirmed for 2027) puts mid-May Yokohama Bay water around 19-20°C — comfortably wetsuit-legal under the general ~24.5°C World Triathlon/T100 threshold — so a wetsuit swim looks likely, but no rule has been published for this event.
How do you get to Yokohama for the race?
Fly into Tokyo Haneda (HND) and take the Keikyu Line rapid express to Yokohama Station, roughly 30 minutes. Narita (NRT) also works but takes longer — about 87 minutes via the Narita Express, or a cheaper route via Sengakuji Station in around 100 minutes.
Do international athletes need a visa for Japan?
Many don't — Japan has a visa-exemption arrangement covering roughly 74 countries and regions (including the UK, most of the EU, the US, Canada, Australia and New Zealand) for short tourist stays of up to 90 days. It isn't universal, though, so check your own passport against the current list on the Ministry of Foreign Affairs of Japan's website before assuming visa-free entry.
Is there a WhatsApp group for T100 Yokohama athletes?
Not published for this event.
Can you qualify for a World Championship at T100 Yokohama?
Not confirmed. T100's general structure qualifies the Top 10 per age group and gender at a 100km T100 race for the T100 Age-Group World Championships in Qatar, but the organiser's own Age-Group World Championships page lists Yokohama among venues where age-group distances — and therefore qualifying status — are still to be confirmed.
When were T100 Yokohama results published?
Not published, because the race hasn't happened yet — check back once the 2027 edition is run, or go straight to the official results source.