Chennai Iron Triathlon, Dec 16th – Prep Mailer – Venue, Stay, Timings, Routes

The Chennai Iron Triathlon (Dec 16th) will include 5 Categories:
  Sprint/Olympic/Half Iron: registrations from July Triathlon are automatically taken forward to Dec 16th
  3/4 and Full Iron: new registrations added
Category change requests will not be accepted beyond November 19th. We assume you would have progressed sufficiently well with your practice to understand your preparedness for your registered category.
Cycle Rental
Participants are to bring their own cycle to the venue. Those looking to rent a cycle can contact following stores in Chennai: Probikers, Balaji Cycles, Just Rent Cycles, Just Buy Cycles (Contact details available on Google). Book your cycle well in advance to avoid last minute lack of availability. Sprint participants can consider sharing a cycle with Olympic / Half Iron participants as these categories happening in the morning / afternoon respectively.
BIB Distribution
You will be allocated a unique participation BIB number in the next mailer. You can collect your physical BIB at the venue after handing a signed copy of the disclaimer form: download here. You can collect your BIB at Agni College on Friday evening 7-10pm (All categories) or Saturday morning 5am (3/4, Full Iron, Sprint) or 11am-2pm (Half Iron, Olympic) onward at the swimming venue.
Overnight Stay
Participants are welcome to stay free overnight at Agni College on both Friday night (class rooms – bring sleeping mat/blanket/torch).
Those looking for paid accommodation nearby can search for hotels near Navalur.
Participants will start in 7 batches as per below table. Please report to the venue as per your category + (to be) assigned BIB:
Category BIB Reporting Start time Cut Off (Men) Cut Off (Women)
Full Iron All 5:30 AM 6:00 AM 18 hours 19 hours
3/4 Iron All 5:30 AM 6:00 AM 14 hours 15 hours
Sprint Batch 1 S101-S150 6:30 AM 7:00 AM 3 hours 3.5 hours
Sprint Batch 2 S151-above 7:00 AM 7:30 AM
Half Iron Batch 1 H101-H150 11:30 AM 12:00 PM 9 hours 10 hours
Half Iron Batch 2 H151-above 12:30 PM 1:00 PM
Olympic Batch 1 O101-O150 1:30 PM 2:00 PM 6 hours 7 hours
Olympic Batch 2 O151-above 2:30 PM 3:00 PM
Note: Participants who do not finish within above cut-off timings will not receive a finisher medal
Venue map
  • You can reach the venue through the OMR IT Highway (Old Mahabalipuram Road) as per below map
  • You can either report on Friday evening at Agni college (free overnight stay) or Saturday morning at the swimming venue directly
  • The swim venue is located approx 1km from Agni College
  • Cars and cycles can be parked at either Agni/Swim venue (bring a lock)
  • Cycling will be done along OMR (proceeding South wards)
  • Running will be done along a 10km loop nearby Agni college (1km from Swim venue)
Swim venue
  • Report at the open water swimming venue at the above indicated timings
  • Park your vehicles at the open space on the left side of the quarry. Drop any valuables in your car.
  • Report at our info desk, hand over the signed disclaimer and pick up your BIB (if not done yet on Friday evening at Agni)
  • Pick up your event t-shirt if you have ordered one while registering
  • Park your cycle near the info desk where you can pick it up directly after the swim
  • Hand over your cycle/run luggage to our baggage counter (IN COUNTER)
  • After the swim you can access your luggage to change and hand it back at the OUT COUNTER after which it ll be transferred to the run venue
  • There is one Swim Aid Station with hydration
  • A tent is provided for ladies to change / Toilets are available at nearby homes
Swim section
  • Participants will swim up and down a 150m long open water quarry
  • Ropes / Tubes are provide for safety and to provide separate lanes for onward/return traffic
  • Always swim on the left side of the rope to avoid opposite traffic
  • Timings/Loops are tracked manually by our volunteers (mention your BIB# out loud while taking U-turn)
  • Participants in each category will complete a different number of loops:
    • Full Iron: 13 loops – 3900m
    • 3/4 Iron: 9.6 loops – 2900m
    • Half Iron: 6.3 loops – 1900m
    • Olympic: 5 loops  – 1500m
    • Sprint: 2.5 loops – 750m

Cycle section
  • After completing the swim, proceed with your cycle back towards OMR (Old Mahabalipuram Road)
  • Take a right on OMR/Navallur and proceed all the way straight
  • Sprint / Olympic / Half Iron / 3/4 Iron / Full Iron categories will take U-turns at different locations en route as per below table
  • One key diversion: at the end of OMR (joining ECR), take a sharp right to Thirukalukundram after crossing tollgate (do not proceed straight on ECR!)
Check point / Aid Station Sprint Olympic Half Iron 3/4 Iron Full Iron
Swim venue Start Start Start Start Start
A2 – Padur (10K) U-turn
A3 – Tiruporur (20K) U-turn U-turn3
A4 – Thirukalukundram (45K) U-turn U-turn1 U-turn1,
Run venue Finish (20K) Finish (40K) Finish (90K) U-turn2,
Finish (135K)
Finish (180K)

Running loop
  • The running venue is located left at the T-junction after Agni College
  • Participants will be running along a 5K loop
  • Aid Stations are provided every 2.5K
  • Sprint: half loop (5K)
  • Olympic: 1 loop (10K)
  • Half Iron: 2 loops (21K)
  • 3/4 Iron: 3 loops (31.5K)
  • Full Iron: 4 loops (42K)
Aid Stations
Aid Stations are equipped with refreshments:
  • Water
  • ORS energy drinks
  • Bananas, Mosambi’s
  • Lemons, Salt
  • Peanut bars, snickers
  • Sandwiches (finish  + 45K cycle U-turn)

Agni College – Venue partner
Bay of Life – Swim partner
Probikers – Bike partner
Alert – First Aid Partner

Associated Cause

Chennai is suffering from an every growing garbage footprint. More than 6000 tonnes of mixed garbage leave the city each day causing significant environmental and health impact. Chennai Trekking Club is actively working on creating a zero waste model community at Srinivasapuram on the estuary of the Adyar river as an example for the rest of the city to follow. In a first phase we are engaged in cleaning up this beautiful hamlet near the sea while at the same time creating awareness on the need to segregate waste. We are setting up a self sustainable waste management model to make the community waste free through door collection, recycling and setting up a compost yard. Trees will be planted to green the hamlet and compost will be used as manure to grow the same. Regular updates are posted on FB of this 1 year project covering 5000 homes.
Chennai Trekking Club

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