Most online tools treat TBI like a one-size-fits-all case: injury severity in, payout range out. But Marathon cases frequently involve complications that simple calculators don’t model, such as:
- Tourist and commuter traffic patterns: sudden stops, lane changes, and congested areas during peak season can create disputes about speed, lane position, and warning time.
- Delayed symptom recognition: headaches, dizziness, memory trouble, and sleep disruption can show up after the initial ER visit—especially when people assume they’re “just sore.”
- Proof gaps from short timelines: if treatment is delayed or records are incomplete, insurers may argue the symptoms weren’t caused by the incident.
The result? Two people with similar diagnoses can end up with very different settlement outcomes depending on documentation and risk on liability.


