Road course · Japan
Maze Sea Circuit
Maze Sea Circuit is a road course in Japan. OpenStreetMap maps 3 layouts here, the longest 1.28 mi (2.05 km). Below: the map, every corner with a computed line, the elevation, and where to stay and eat.
- 2.05
- Kilometres
- 15
- Corners
- —
- Ft of elevation
01Track map
Maze Sea Circuit track map
Full circuit
Name inferred by TRACK from the mapped loops, not an official layout name.
- Mapped length
- 1.28mi
- 2.05 km
- Direction
- Not mapped
- TRACK takes it from your first drive.
- Start/finish line
- Estimated
- Estimated by TRACK from the mapped geometry and not verified on site. TRACK asks you to confirm or move it before timing laps here, when you’re stopped.
- Corners
- 16
- Inferred from curvature, not official turn numbers
- Sectors
- 3
- Estimated, near each third of the lap
Source geometry: OpenStreetMap ↗. Something wrong? Fixing it in OpenStreetMap improves it for everyone.
02Overview
What Maze Sea Circuit is like to drive.
The full circuit layout at Maze Sea Circuit is 1.27 miles with 15 corners worth setting up for. A generic track-day car in our model brakes hard 15 times a lap and is at full throttle for about 30% of the distance; the longest straight runs roughly 574 ft.
12 of the corners are slow (under 50 mph in the model), 1 are fast (over 75 mph). There are hairpins where exit speed matters more than entry. The corner notes below come from the mapped geometry, not from local knowledge; we’ll add a researched guide for Maze Sea Circuit later.
03Lap at a glance
Where the speed is, and where the hills are.
- Length
- 1.27mi
- Elevation range
- —
- Steepest grade
- —
- Braking zones
- 15model
- Full throttle
- 30% model
- Longest straight
- 574ft
The speed trace is a model, not a real lap: a generic track-day car (about 1.1 g of cornering grip, 1 g braking, 150 W/kg) driven on the computed line through an assumed 12 m wide track. Use it to see where the braking zones and flat-out sections are, not to predict your speeds. Elevation data for this track isn’t loaded yet.
04Corner by corner
The corners at Maze Sea Circuit.
TRACK’s own corner numbering (C1, C2…), found from the curvature of the mapped centerline. It isn’t the official turn numbering. Each diagram shows the computed line: the minimum-curvature path through an assumed 12 m wide track. It’s a geometric starting point. Your instructor’s line comes first.
- C1
日本海間瀬サーキット
↱ RightfastkinkTRACK numbering
A fast right-hand kink that turns about 22°, tightening to a radius of roughly 47 m (154 ft). The model car brakes for about 20 m (66 ft), from 116 to 110 mph. The computed line turns in from the left side, takes a late apex, about 115 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 22° right
- Tightest radius
- 47 m
- Model speed
- 116 → 110 mph
- Braking (model)
- 20 m
- Grade
- —
- C2
日本海間瀬サーキット
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 142°, tightening to a radius of roughly 22 m (72 ft). The model car brakes for about 150 m (492 ft), from 116 to 45 mph. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.
- Turns
- 142° left
- Tightest radius
- 22 m
- Model speed
- 116 → 45 mph
- Braking (model)
- 150 m
- Grade
- —
- C3
日本海間瀬サーキット
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 125°, tightening to a radius of roughly 22 m (72 ft). The model car brakes for about 50 m (164 ft), from 69 to 36 mph. The computed line turns in from the right side, takes a late apex, about 105 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 125° left
- Tightest radius
- 22 m
- Model speed
- 69 → 36 mph
- Braking (model)
- 50 m
- Grade
- —
- C4
日本海間瀬サーキット
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 110°, tightening to a radius of roughly 13 m (43 ft). The model car brakes for about 60 m (197 ft), from 69 to 34 mph. The computed line turns in from the right side, takes an early apex, about 5 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 110° left
- Tightest radius
- 13 m
- Model speed
- 69 → 34 mph
- Braking (model)
- 60 m
- Grade
- —
- C5
日本海間瀬サーキット
↱ RightslowchicaneTRACK numbering
A slow right-hand chicane that turns about 77°, tightening to a radius of roughly 21 m (69 ft). The model car brakes for about 60 m (197 ft), from 69 to 34 mph. The computed line turns in from the left side, takes an early apex, about 10 m before the geometric apex, and lets the car run out to the left on exit.
- Turns
- 77° right
- Tightest radius
- 21 m
- Model speed
- 69 → 34 mph
- Braking (model)
- 60 m
- Grade
- —
- C6
日本海間瀬サーキット
↰ LeftslowkinkTRACK numbering
A slow left-hand kink that turns about 28°, tightening to a radius of roughly 51 m (167 ft). The model car brakes for about 45 m (148 ft), from 62 to 46 mph. The computed line turns in from the right side, takes an early apex, about 45 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 28° left
- Tightest radius
- 51 m
- Model speed
- 62 → 46 mph
- Braking (model)
- 45 m
- Grade
- —
- C7
日本海間瀬サーキット
↰ LeftmediumkinkTRACK numbering
A medium left-hand kink that turns about 8°, tightening to a radius of roughly 74 m (243 ft). The model car brakes for about 110 m (361 ft), from 109 to 63 mph. The computed line turns in from the right side, takes a late apex, about 35 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 8° left
- Tightest radius
- 74 m
- Model speed
- 109 → 63 mph
- Braking (model)
- 110 m
- Grade
- —
- C8
日本海間瀬サーキット
↰ LeftmediumchicaneTRACK numbering
A medium left-hand chicane that turns about 104°, tightening to a radius of roughly 14 m (46 ft). The model car brakes for about 110 m (361 ft), from 109 to 63 mph. The computed line turns in from the right side, takes an early apex, about 60 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 104° left
- Tightest radius
- 14 m
- Model speed
- 109 → 63 mph
- Braking (model)
- 110 m
- Grade
- —
- C9
日本海間瀬サーキット
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 210°, tightening to a radius of roughly 13 m (43 ft). The model car brakes for about 55 m (180 ft), from 67 to 35 mph. The computed line turns in from the right side, takes an early apex, about 10 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 210° left
- Tightest radius
- 13 m
- Model speed
- 67 → 35 mph
- Braking (model)
- 55 m
- Grade
- —
- C10
日本海間瀬サーキット
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 164°, tightening to a radius of roughly 13 m (43 ft). The model car brakes for about 55 m (180 ft), from 67 to 35 mph. The computed line turns in from the right side, takes an early apex, about 60 m before the geometric apex, and lets the car run out to the right on exit.
- Turns
- 164° left
- Tightest radius
- 13 m
- Model speed
- 67 → 35 mph
- Braking (model)
- 55 m
- Grade
- —
- C11
日本海間瀬サーキット
↰ LeftslowhairpinTRACK numbering
A slow left-hand hairpin that turns about 189°, tightening to a radius of roughly 16 m (52 ft). The model car brakes for about 25 m (82 ft), from 45 to 40 mph. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.
- Turns
- 189° left
- Tightest radius
- 16 m
- Model speed
- 45 → 40 mph
- Braking (model)
- 25 m
- Grade
- —
- C12
日本海間瀬サーキット
↰ LeftslowchicaneTRACK numbering
A slow left-hand chicane that turns about 50°, tightening to a radius of roughly 53 m (174 ft). The model car brakes for about 70 m (230 ft), from 82 to 39 mph. The computed line turns in from the right side, takes a late apex, about 50 m after the corner’s geometric apex, and lets the car run out to the right on exit.
- Turns
- 50° left
- Tightest radius
- 53 m
- Model speed
- 82 → 39 mph
- Braking (model)
- 70 m
- Grade
- —
- C13
日本海間瀬サーキット
↱ RightslowchicaneTRACK numbering
A slow right-hand chicane that turns about 129°, tightening to a radius of roughly 10 m (33 ft). The model car brakes for about 70 m (230 ft), from 82 to 39 mph. The computed line turns in from the left side, takes a late apex, about 35 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 129° right
- Tightest radius
- 10 m
- Model speed
- 82 → 39 mph
- Braking (model)
- 70 m
- Grade
- —
- C14
日本海間瀬サーキット
↱ RightslowchicaneTRACK numbering
A slow right-hand chicane that turns about 169°, tightening to a radius of roughly 10 m (33 ft). The model car brakes for about 70 m (230 ft), from 82 to 39 mph. The computed line turns in from the left side, takes a late apex, about 65 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 169° right
- Tightest radius
- 10 m
- Model speed
- 82 → 39 mph
- Braking (model)
- 70 m
- Grade
- —
- C15
日本海間瀬サーキット
↱ RightslowchicaneTRACK numbering
A slow right-hand chicane that turns about 177°, tightening to a radius of roughly 10 m (33 ft). The model car brakes for about 70 m (230 ft), from 82 to 39 mph. The computed line turns in from the left side, takes a late apex, about 35 m after the corner’s geometric apex, and lets the car run out to the left on exit.
- Turns
- 177° right
- Tightest radius
- 10 m
- Model speed
- 82 → 39 mph
- Braking (model)
- 70 m
- Grade
- —
05Configurations
Every mapped loop at Maze Sea Circuit.
TRACK finds each closed loop in the OpenStreetMap raceway network. Named layouts come from OSM circuit relations; the rest are named by length, and some may be combinations the venue never runs. Your first session confirms which one you drove.
Full circuit
1.28 mi2.05 kmDirection unknownS/F EstimatedName inferred
Layout B · 2.0 km
1.25 mi2.02 kmDirection unknownS/F EstimatedName inferred
Layout C · 1.5 km
0.96 mi1.54 kmDirection unknownS/F EstimatedName inferred
06Time it with TRACK
Drive Maze Sea Circuit. TRACK knows where you are.
No setup and no transponder. Start a session in the paddock and TRACK recognises Maze Sea Circuit and the layout from your GPS trace, then times every lap and sector with a live delta to your best.
- 1DetectTRACK matches your first few hundred metres against every mapped layout at Maze Sea Circuit, including shared pavement between configurations.
- 2Confirm the lineThe start/finish line here is estimated. When you’re stopped, TRACK shows it on the map: accept it or tap to move it. You’re never asked while driving.
- 3Laps, timed retroactivelyLaps you drove before confirming are timed from the recorded trace, so you don’t lose your first session.
- 4Go furtherSync a GoPro for video with telemetry and let TRACK Engineer point out where the time is. External 10–25 Hz GPS receivers for tighter sectors are awaiting hardware validation.
- Venue and layout detection is tested on simulated drives over real OpenStreetMap circuits, not yet in a real car. Compatible GPS receivers
07Plan your trip
Getting there, staying, eating.
Nearby places for Maze Sea Circuit haven’t been loaded yet.
08Track days
Find an open track day at Maze Sea Circuit.
TRACK doesn’t copy event listings. An on-page calendar will come with an organizer data partnership.
Before your first day here
09Nearby tracks
Closest mapped venues.
- Ebisu CircuitJapan · 86 mi away
- Nasu Motor Sports LandJapan · 90 mi away
- Hero Shinoi CircuitJapan · 92 mi away
- Nikko CircuitJapan · 95 mi away
Straight-line distance between venues. All 889 tracks
FAQ
Maze Sea Circuit, answered.
How long is Maze Sea Circuit?
OpenStreetMap maps 3 closed loops at Maze Sea Circuit, from 0.96 mi to 1.28 mi (2.05 km). These are mapped centerline lengths; the venue’s published figures can differ slightly.
Which direction does Maze Sea Circuit run?
OpenStreetMap doesn’t record a direction for the main layout at Maze Sea Circuit. Venues sometimes run both ways. TRACK takes the direction from your first laps.
Can I time laps at Maze Sea Circuit with my phone?
Yes, with the TRACK iPhone app (beta). It recognises Maze Sea Circuit and the layout you’re driving from GPS, then times laps and sectors. A phone’s GPS is good for lap times; an external 10–25 Hz receiver tightens sector splits.
Where is the start/finish line at Maze Sea Circuit?
TRACK estimates the line from the mapped geometry (usually beside the pit lane, or on the longest straight). It isn’t verified on site, so the app asks you to confirm or move it before timing your first session here.
How do I find track days at Maze Sea Circuit?
Clubs and organizers list HPDE, track days and club races on MotorsportReg. The venue’s own calendar (also linked) lists its events too. TRACK doesn’t list events itself.
Where can I stay near Maze Sea Circuit?
This page lists hotels, campgrounds, restaurants, fuel and parts stores near Maze Sea Circuit from OpenStreetMap, with straight-line distances. Book early for big event weekends.
Track geometry and nearby places: © OpenStreetMap contributors, available under the Open Database License 1.0 (via the TRACK Atlas, snapshot 2026-10-17). Elevation: USGS 3DEP (public domain). Lengths are mapped centerlines, not official figures. The computed line and speed trace are a model. No start/finish line has been verified on site.
TRACK is not affiliated with or endorsed by Maze Sea Circuit, MotorsportReg or any business listed here. The venue name identifies the location only and belongs to its owner. TRACK shows no lap records or official results for this venue. Driving advice is general: your instructor, the event’s rules and the venue’s rules come first.