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September 18, 2026 · Coach

Week One: Defense was Dominant

Flag Football CoachingYouth Flag FootballDefensive StrategyBlitzingZone DefenseGame DayCoaching Tips

Week 1 is in the books. The final scores for my two teams were 19-0 and 28-0, with the second game ending by mercy rule. I could not have been happier with the way our defenses played.

We blitzed. We played zone. We changed looks constantly and kept both opposing offenses from ever getting comfortable. Between the two teams, we recorded a safety, several sacks, and 11 interceptions.

Yes, 11.

I almost didn’t believe that number myself until I looked at the postgame stats. Then I went back through the GameDay Game Log and, sure enough, I remembered every one of them.

A few things stood out.

Blitzing Is an Attitude

Your fastest player is not necessarily your best blitzer. In fact, our best blitzer isn’t even close to being the fastest player on the team. What makes him effective is the way he attacks the quarterback.

He blitzes exactly the way we coach it, and he does it with maximum effort every single time. He doesn’t slow down. He doesn’t hesitate. He commits. His pressure directly led to two interceptions in Week 1.

Speed obviously helps, but a great blitzer also needs aggression, timing, discipline, and the willingness to go full speed every time the call comes in.

Sometimes blitzing is less about athletic ability and more about attitude.

We Started Defense Early

In my training camp post, I talked about installing the defense as early as possible.

Week 1 reinforced that belief.

Our very first practice was heavily focused on defense, and every practice since has included a defensive component. That work showed up immediately.

We had virtually no blown coverages. Players understood their assignments, communicated, and—maybe most importantly—all six defenders were swarming to the football.

That last part matters.

Even when the first defender misses a flag, there should be another defender right there. And another one behind him. A defense with six players doing their own thing is vulnerable. A defense with six players working together is very difficult to move the ball against.

And the encouraging part is that we're just getting started.

Balance Is Key

One of the most interesting things I saw when reviewing the postgame analytics was how balanced our defensive calls were.

We played zone about 33% of the time. At the same time, no individual blitz accounted for more than 15% of our defensive calls.

That meant the offense could never get comfortable with what they were seeing. One play we showed zone.

The next play pressure came from somewhere else. Then we changed the look again.

The opposing quarterbacks never had a chance to settle into a rhythm because they couldn’t anticipate what was coming next.

That doesn’t mean you need an enormous defensive playbook. You don’t.

It means you need a handful of defensive concepts your players understand extremely well—and enough variety that the offense can’t easily predict what you’re about to do.

Don't Neglect Your Defense

There’s always a temptation in flag football to spend most of practice on offense. Offense is fun. You draw up plays. You work on routes. You throw deep balls. You practice touchdowns.

Defense doesn't always have the same appeal.

But a good defense gives you an enormous advantage, especially early in the season when most offenses are still trying to figure themselves out.

Teach assignments. Practice your blitzes. Work on zone responsibilities. Teach everyone to swarm to the football. Then give your defense enough different looks to keep the offense guessing.

Week 1 was a pretty strong reminder for me:

Don't neglect your defense.

I'm a flag football coach and the creator of GameDay Flag Football. I built GameDay around the same challenges I write about here.