Breakaway Pursuit & Angle Physics Simulator
Test ball carrier burst speed ("turning on the jets"), open-field cutback paths, and safety pursuit angles across 39 yards of open turf to see if defense can stop the touchdown.
39-Yard Field View
Live 2D Physics Vector FieldPursuit Geometry: The Mathematics of the Breakaway
When a running back clears the first level and enters open turf 39 yards away from paydirt, the play transitions from blocking leverage to a classic pursuit triangle (Pure Intercept Trajectory vs Proportional Navigation).
Defenders cannot run directly at where the ball carrier is right now—they must aim at the projected intercept point. If the runner's velocity vector generates an unexpected acceleration burst (e.g. from 16 to 21.4 mph), the defender's calculated angle becomes too steep, creating an inescapable cutback or sideline breakaway.
Breakaway Mechanics & Next Gen Stats Insights
What does "turning on the jets" mean in physics?
Ball carriers with elite sprint efficiency hit high peak speed while maintaining stride frequency through a cut. Henderson's burst highlights second-level acceleration where defensive backs who took conservative angles get caught in a trailing pursuit vacuum.
Why reaction latency determines the tackle window
Even an elite safety running 21 mph loses approximately 2.5 to 3.2 yards of containment space for every 0.15 seconds of hesitation or false-step reading the backfield handoff.
How can you test custom pursuit angles?
Use the sliders to adjust the initial pursuit angle between 15° and 65°, change the safety's top speed, and click Run Play to observe whether the tackle radius overlaps before the goal line.