Centerville, MA · Saturday, September 11, 2027

    Hyannis Triathlon with a free coach.

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    Hi! Hyannis Triathlon is 46 weeks out. What are you aiming for?

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    Build your Hyannis Triathlon plan

    Your coach opens with the Hyannis Triathlon set for September 11, 2027, asks about your week and your fitness, then writes every session of your Olympic-distance triathlon plan. Free, and you can start as a guest. About 46 weeks to go.

    Start your Hyannis Triathlon plan
    46 Race dayWeeks until race day September 11, 2027
    Formats
    Olympic, Sprint, Duathlon, Olympic Aquabike
    Terrain
    Rolling
    Taper starts
    September 2, 2027

    Hyannis Triathlon distances

    • Olympic 0.9 mi swim, 20 mi bike, 6.2 mi run
    • Sprint 0.2 mi swim, 10.2 mi bike, 3.6 mi run
    • Duathlon 15.2 mi
    • Olympic Aquabike 20.9 mi

    Course

    The Hyannis Triathlon course

    Everything starts and finishes at Craigville Beach in Centerville, on the Barnstable shore of Nantucket Sound. The swim is a sandy running start into a rectangular course that stays within 100 yards of shore: 1/4 mile for the Sprint, and two loops for 0.9 mile in the Olympic, with a 30-minute cutoff on the first half-mile.

    Read the full course notes

    The bike is a rolling loop on well-paved roads through Centerville, Osterville and Wianno, 10.2 miles for the Sprint, while Olympic riders turn onto Bay Lane near mile 9 for a second circuit and 20 miles in total. The run heads toward Hyannisport with one gentle uphill and a downhill final stretch: 3.6 miles for the Sprint, and an out-and-back repeated twice for the Olympic 10K. Duathletes run 1.4 miles, ride the Sprint bike course and finish on the Sprint run.

    Terrain
    Rolling
    Formats
    Olympic, Sprint, Duathlon, Olympic Aquabike
    Race-day conditions
    The race says Nantucket Sound is typically in the low 70s °F, which sits inside the USA Triathlon wetsuit-legal range (up to 78 °F) for this sanctioned race, and conditions have ranged from glassy calm to moderate chop. Cape Cod mornings in mid-September usually start around 58–65 °F and warm into the low 70s, often with a sea breeze. Bring a warm layer for the 5:30 a.m. transition setup and take a short warm-up swim, since the first minutes can feel brisk.

    What to train for

    Practice beach starts: run into the water, dolphin through the shallows and settle your stroke within the first 100 yards, ideally in open water with some chop.

    The rolling bike roads reward steady power, so ride 60 to 90 minutes on similar terrain holding an even effort over each rise instead of surging.

    The run is mostly fast with one gentle climb, so do brick runs straight off the bike at goal pace (2 to 3 miles for the Sprint, 4 to 6 for the Olympic). Olympic racers should be swimming 1,600 yards continuously and comfortably well before race day, since the first half-mile carries a 30-minute cutoff.

    Sample week

    A sample Hyannis Triathlon training week

    A week from the middle of the build, about six weeks out. Your plan sets the real distances and paces from your own fitness and adjusts them every week as you train.

    1. Monday
      • Swim, 45 min: drills and technique
    2. Tuesday Key session
      • Bike, 1 h with threshold intervals
    3. Wednesday
      • Swim, 45 min: steady intervals at race effort
      • Easy run, 40 min
    4. Thursday Key session
      • Run, 40 min with tempo segments
    5. Friday
      • Rest, or 20 minutes of mobility
    6. Saturday Key session
      • Long ride, 1 h 30 min, then a 20 min run off the bike
    7. Sunday
      • Long run, 1 h easy

    Your build to race day

    Base 18 wk
    Build 16 wk
    Peak 11 wk
    Taper 1 wk

    Taper

    Tapering for the Hyannis Triathlon

    Start the taper seven to ten days before race day. Trim the volume in all three sports, keep short race-pace efforts in each, and do one last short brick so running off the bike still feels familiar. The course rolls, so keep one short session on undulating ground in the first taper week. With the race on September 11, 2027, your taper starts around September 2, 2027.

    113 athletes joined in the first two weeks of October
    70% came back within their first week

    Also in Claude

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    Build me a Olympic-distance triathlon season for the Hyannis 2 Triathlon on September 11, 2027. I train about [hours] hours a week, [days] days a week.

    Hyannis Triathlon training questions

    How long should I train for the Hyannis Triathlon?

    Most athletes give a Olympic-distance triathlon twelve to sixteen weeks of focused training on top of an existing base. The coach counts back from your actual race date, so if you have less time than that it builds the best plan the remaining weeks allow rather than pretending you have longer.

    What is the Hyannis Triathlon course like?

    Rolling. Everything starts and finishes at Craigville Beach in Centerville, on the Barnstable shore of Nantucket Sound.

    How cold is the water at the Hyannis Triathlon?

    The race says Nantucket Sound is typically in the low 70s °F, which sits inside the USA Triathlon wetsuit-legal range (up to 78 °F) for this sanctioned race, and conditions have ranged from glassy calm to moderate chop. Cape Cod mornings in mid-September usually start around 58–65 °F and warm into the low 70s, often with a sea breeze. Bring a warm layer for the 5:30 a.m. transition setup and take a short warm-up swim, since the first minutes can feel brisk.

    When should I start tapering for the Hyannis Triathlon?

    Start the taper seven to ten days before race day. Trim the volume in all three sports, keep short race-pace efforts in each, and do one last short brick so running off the bike still feels familiar. The course rolls, so keep one short session on undulating ground in the first taper week. With the race on September 11, 2027, your taper starts around September 2, 2027.

    Do I need an account to get a Hyannis Triathlon training plan?

    Start as a guest and save a free account later. Your coach writes your Olympic-distance triathlon plan and adapts it every week as you log your training. No card.

    Other races

    See you at the start line on September 11, 2027.

    Build the plan today. It adapts every week until race day.

    Race facts checked against the official site on October 21, 2026. Registration and official details: Hyannis Triathlon official site

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