Statistics Profile

Jerry Duffey

1969

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Weapon	Type	Strength	Estimate Range^*	Min	Max
Épée	Pool	2639	1132 - 4145	2639	2639
Épée	Direct elimination	2746	1279 - 4212	2746	2746
Foil	Pool	1198	707 - 1688	1129	1508
Foil	Direct elimination	1974	962 - 2985	1691	2144
Saber	Pool	1728	1510 - 1945	1728	2371
Saber	Direct elimination	1804	1373 - 2234	1520	1928

^* 95% confidence interval of the estimate (μ ± 2σ).

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Strength over time

Daily results are combined into one point. Dashed stretches indicate a less stable estimate.

Strength is a numeric summary of how a fencer has performed against other fencers over time.
The estimate usually settles after about 12 bouts, so early data can move sharply.
New fencers begin around 2500, but with high uncertainty.
Pools, direct eliminations, and mixed-gender bouts are tracked separately.
The scale runs from roughly 0 to 5000, with the average around 2500.
Beating much stronger fencers moves the estimate more than beating weaker ones.
Win probability reflects rating differences only, not style matchups or familiarity.
Per-bout changes are available in bout history.