The Week in Hybrid
A quick scan of what happened over the past week.
• Blummenfelt and Knibb Dominate at Ironman 70.3 Oceanside — The third leg of the 2026 Ironman Pro Series took place in Oceanside, California on Saturday, with both winners setting course records despite having raced — and won — in Australia just one week prior. Kristian Blummenfelt claimed the men's title in 3:40:08, powering through the field on the run with a blistering 1:07:01 half marathon split — his second win in six days. On the women's side, Taylor Knibb was dominant from T1, shattering her own bike course record with a 2:15:27 split to build a nearly five-minute lead heading into the run.
• HYROX Houston Wraps a Big Week of Racing — HYROX returned to the George R. Brown Convention Center in Houston for four days of racing, March 26–29, drawing one of the largest US fields of the season across Open, Pro, and Doubles divisions. In the Men’s Pro, Jack Driscoll took the title in 56:18, with Rachael Wade winning the Women's Pro in 1:00:34.
• CrossFit Quarterfinals Underway — The 2026 CrossFit Quarterfinals kicked off Thursday, March 26, marking the return of the second stage of the Games season after a one-year hiatus. Athletes compete at their affiliates through Monday, March 30, with Semifinals spots on the line — the top 2,000 men and women from Quarterfinals will advance to one of the in-person Semifinals events or the Online Semifinals later this year.
Upcoming Events:
HYROX Miami Beach — April 3–5 | Miami Beach, FL — HYROX returns to the Miami Beach Convention Center for three days of racing, with the Pro Men's and Pro Women's races kicking off on Friday evening, April 3, followed by Open Men on Saturday and Open Women on Sunday.
Need to Know
HOW TO RUN A FASTER 5K
The benchmark that changes everything.
The 5K is the most underrated distance in endurance sport. It's short enough to feel accessible, but fast enough to genuinely hurt. Whether you're a triathlete building your run base, a HYROX athlete trying to get faster between stations, or someone training for their first half marathon — improving your 5K time is one of the highest-leverage investments you can make. It's the benchmark that sets your training zones, dictates your tempo pace, and tells you how your running is actually progressing. If you don't know your current 5K time, go run one. Everything below flows from that number.
Why most runners plateau
Most runners who stop improving are stuck in one of two traps: they're running easy miles without ever pushing the pace, or they're hammering hard efforts on an aerobic base too thin to support them. Improvement comes from structured variety — different session types, each targeting a different physiological system. More miles alone won't cut it. Neither will running fast every day.
The Running Program
Three to four quality sessions per week beats six days of unfocused running. Here's what those sessions should look like:
Easy Runs - The bulk of your running should be genuinely easy — a pace where you can hold a full conversation without laboring. This isn't a sign of weakness. Easy running builds the aerobic base that makes every other session possible. Most runners run their easy days too hard and their hard days too soft. Keep easy days easy.
Tempo Runs - Once per week, run at a sustained effort just below your redline — roughly the pace you could hold for an hour in a race. A typical session: 10 minutes easy to warm up, 20 minutes at threshold effort (RPE 7), 10 minutes easy to cool down. This pushes your lactate threshold, which is the primary limiter in 5K performance. The fitter you get, the faster you can run before hitting that wall.
Interval Training - This is where raw speed is built. Run short, hard repetitions at or slightly faster than your goal 5K pace, with full recovery between each effort. Good starting sessions: 6–8 x 400m at goal pace with 90 seconds rest, or 5 x 1K at goal pace with 90–120 seconds rest. The 1K repeats are particularly effective because they train you to sustain goal pace across multiple repetitions — which is exactly what race day demands.
Long Run - Even for a 5K athlete, a weekly long run matters. It builds the aerobic ceiling that supports all your other training. Keep it fully conversational — 45 to 75 minutes depending on your fitness level. Never race your long run.
Sample Week:
Monday: Intervals
Tuesday: Easy run (30–40 min)
Wednesday: Rest
Thursday: Tempo run
Friday: Rest or easy run/walk/run
Saturday: Long run
Sunday: Rest
Strength and Accessory Work
This is where hybrid athletes have a built-in advantage — and where most pure runners leave significant time on the table. Research consistently shows that runners who incorporate strength training improve their running economy by meaningful margins, perform better in time trials, and get injured less. The reason isn't just stronger muscles — it's more efficient neuromuscular output. You learn to apply more force to the ground with less energy expenditure per stride. You don't need a bigger engine. You need a more efficient one.
Schedule strength sessions on easy run days or rest days — never the day before intervals or a long run. Some of our favorite exercises include:
Bulgarian Split Squat - Single-leg strength is the foundation of running mechanics. This exercise builds the quad, glute, and hamstring strength that drives each stride while exposing and correcting the muscle imbalances that cause form to break down late in a race. 3–4 sets of 6–8 reps per leg, controlled tempo down.
Romanian Deadlift - The posterior chain — glutes, hamstrings, lower back — is what propels you forward. Most runners have underdeveloped posterior chains relative to their quads. RDLs fix that. They also reinforce the core bracing that keeps your posture upright when fatigue sets in. 3 sets of 8 reps.
Box Jumps or Jump Squats - Explosive plyometric work targets your fast-twitch muscle fibers and improves your ability to apply force to the ground quickly — which directly reduces ground contact time and improves running efficiency. Land softly and reset between reps. This is about quality, not fatigue. 3 sets of 6–8 reps.
Single-Leg Calf Raises - The calf and Achilles are the most undertrained muscles in recreational runners and among the most common sources of injury. Strong calves improve push-off, protect the Achilles, and help prevent shin splints. Do these weighted if possible. 3 sets of 15–20 reps per leg.
Dead Bugs - Core stability is what holds your form together in the final kilometer when everything else wants to fall apart. Dead bugs train anti-rotation and deep core control without loading the spine. 3 sets of 20 reps.
The pacing mistake that costs most people their PR
Going out too fast. The first mile of a 5K, fueled by adrenaline and fresh legs, feels effortless — until it doesn't. Starting 10 seconds per mile too fast in the first kilometer can cost you 30–40 seconds in the final one. The goal is even splits or, better yet, negative splits — running the second half marginally faster than the first. The athletes you see surging in the final stretch didn't find a second wind. They managed the first half well enough to have something left.
Key takeaway: The 5K is a tool, not just a race.
Run the test, know your number, and build your program around it. Your tempo pace, your interval targets, your long run effort — all of it flows from that single data point. Improve the 5K and you improve everything downstream.
Workouts of the Week
Two sessions you can actually use:
Strength
Warmup - 3 Sets
10 Three Way Shoulder Raises
EMOM x 10 minutes
Strict dips @ RPE 8–9
5 Sets
5 DB Bench Press @ RPE 8 (heavy — 5-rep effort)
5 Pendlay Rows @ RPE 8
5 Sets
10 seated DB Arnold Press @ RPE 7
12 lateral DB shoulder raises @ RPE 8
Core — 3 Sets
20 Hollow Rocks
30s Hollow Hold
20 Dead Bugs
Threshold Run - 1k Repeats
Warmup
10 minute easy run
Main Set - 6 Rounds
1km run @ RPE 8 (5k Pace)
Rest 90s
Cooldown
10 minute easy run
For Lifts: RPE 5–6 — Moderate effort. Several reps left in the tank. RPE 7 — Challenging but controlled. This is the default working effort. RPE 8 — Hard. You could do more, but quality would slip. RPE 9 — Very hard. ~1 rep left. Near max for the day. RPE 10 — Max effort. Nothing left.
For Runs: RPE 4–5 = conversational Zone 2. RPE 6–7 = threshold, hard to hold a sentence. RPE 8–9 = race effort.
If you found this useful, forward to your training partners.
Train Hybrid,
