Build your Cal Tri Lake Perris plan
Your coach opens with the Cal Tri Lake Perris set for April 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 24 weeks to go.
Start your Cal Tri Lake Perris plan- Formats
- Olympic, Sprint
- Terrain
- Rolling
- Taper starts
- April 2, 2027
Cal Tri Lake Perris distances
- Olympic 0.9 mi swim, 27.5 mi bike, 6 mi run
- Sprint 0.2 mi swim, 9.2 mi bike, 3.1 mi run
Course
The Cal Tri Lake Perris course
Everything happens inside Lake Perris State Recreation Area, an 8,200-acre reservoir park in western Riverside County, with transition at Lot 9. The swim starts from Swim Beach: 1,640 yards for the Olympic and 400 yards for the sprint.
Read the full course notes
The bike uses the park roads (Vía Del Lago, Lot 11 Road and Martin Street) on a 9.2-mile loop that the sprint rides once and the Olympic rides three times for 27.5 miles. Each lap reaches its low point around mile 6.5, then climbs about 160 feet back up to Vía Del Lago over the next mile and a half, for roughly 345 feet of climbing per lap and about 1,030 feet over the Olympic ride. The run is an out-and-back along the lakeshore with gentle rollers (3.1 miles for the sprint, two trips for 6 miles in the Olympic), finishing under the finish line arch.
- Terrain
- Rolling
- Formats
- Olympic, Sprint
- Race-day conditions
- The organizers list an average water temperature of 68 °F, which is wetsuit legal under Cal Tri rules (legal from 65 to 78 °F, recommended from 58 to 64.9 °F, mandatory from 53 to 57.9 °F), so plan to swim in one. Mid-April air temperatures average 49 °F early in the morning and 77 °F in the afternoon, and the inland sun warms the run quickly. Bring a warm layer for setup and drink steadily on the bike.
What to train for
The climb back to Vía Del Lago on every lap defines the bike: practice 3 x 6 to 8 minutes at Olympic-distance effort on a steady hill, staying smooth and seated rather than surging.
Get a few open-water swims in your wetsuit before race day, because water in the 60s °F feels cold at the start of the season.
Add a weekly brick of 45 to 60 minutes on the bike straight into 15 to 20 minutes running at goal pace. Know the swim cutoffs (3 minutes per 100 yards for the Olympic, 4 for the sprint) and build steady aerobic swim volume if you are close to them.
Sample week
A sample Cal Tri Lake Perris 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.
- Monday
- Swim, 45 min: drills and technique
- Tuesday Key session
- Bike, 1 h with threshold intervals
- Wednesday
- Swim, 45 min: steady intervals at race effort
- Easy run, 40 min
- Thursday Key session
- Run, 40 min with tempo segments
- Friday
- Rest, or 20 minutes of mobility
- Saturday Key session
- Long ride, 1 h 30 min, then a 20 min run off the bike
- Sunday
- Long run, 1 h easy
Your build to race day
Taper
Tapering for the Cal Tri Lake Perris
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 April 11, 2027, your taper starts around April 2, 2027.
Also in Claude
Ask Claude for this plan
Add AthleteSpace to Claude once, then paste this prompt and put in your own numbers.
Build me a Olympic-distance triathlon season for the Cal Tri Lake Perris on April 11, 2027. I train about [hours] hours a week, [days] days a week.
Cal Tri Lake Perris training questions
How long should I train for the Cal Tri Lake Perris?
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 Cal Tri Lake Perris course like?
Rolling. Everything happens inside Lake Perris State Recreation Area, an 8,200-acre reservoir park in western Riverside County, with transition at Lot 9.
How cold is the water at the Cal Tri Lake Perris?
The organizers list an average water temperature of 68 °F, which is wetsuit legal under Cal Tri rules (legal from 65 to 78 °F, recommended from 58 to 64.9 °F, mandatory from 53 to 57.9 °F), so plan to swim in one. Mid-April air temperatures average 49 °F early in the morning and 77 °F in the afternoon, and the inland sun warms the run quickly. Bring a warm layer for setup and drink steadily on the bike.
When should I start tapering for the Cal Tri Lake Perris?
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 April 11, 2027, your taper starts around April 2, 2027.
Do I need an account to get a Cal Tri Lake Perris 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.