Statistics Profile

James Bookwalter (Erich)

1988

Ataba Fencing Club

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Weapon	Type	Strength	Estimate Range^*	Min	Max
Épée	Pool	1704	1150 - 2257	1271	1704
Épée	Direct elimination	2386	1558 - 3213	2386	2607
Foil	Pool	2634	1758 - 3509	2634	2634
Foil	Direct elimination	2931	2040 - 3821	2931	2931

^* 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.