The most dramatic, highest-quality games in high school football history — 1877 to present
Each game is scored by the Pulse Rate Index, which combines two things: how good both teams were, and how close the game was.
The formula is:
PRI = (Home Team Rating + Visitor Team Rating) × Margin Multiplier
Team ratings use the Combined Rating from the end-of-season final (Week 52) — a machine-learning–derived measure of program strength for that season. Only elite programs qualify (see below).
The Margin Multiplier rewards close games and penalizes comfortable wins:
| Margin | Multiplier | Reasoning |
|---|---|---|
| Tie | 0.85 | Less decisive than a one-point game |
| 1 point | 1.00 | Maximum drama |
| 2–3 points | 0.90 | Field goal range |
| 4–7 points | 0.75 | One score game |
| 8 points | 0.60 | TD + two-point conversion |
| 9+ points | — | Excluded (not "close" by any standard) |
To appear in these results, both teams must qualify as elite programs for that season. A team qualifies if it meets all three criteria:
This filter ensures that the results represent genuinely elite matchups — not flukes between programs with thin historical records.
The PRI score is displayed on a 0–100 scale, where 100 represents the highest-scoring game in the dataset. This makes it easy to compare across eras without needing to interpret the raw formula values.
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Which two programs have produced the most consistently great, dramatic games against each other over time? Greatest Rivalries will rank head-to-head series by aggregated game quality, weighted by recency and competitive balance — giving a definitive answer to who the best rivalries in high school football history really are.
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