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James Norby

Complete race history and performance trends

Performance Analytics
Understanding Performance Data
Performance Score: Individual race rating reflecting strength of competition and finishing position.
Updated Rating: Cumulative rating that evolves based on recent performances and past history.
Date Event Race Place Time Perf Score Rating
10/17 MVC Valley Divisional Boys Fr-So & JV Fr-So 88 22:03.59 1174 1159
10/10 MVC Super Meet Fr-So Boys 5K 174 23:09.59 1104 1129
10/05 Dan Huston/Steve Johnson Invitational Boys JV 5000M 291 22:57.20 1215 1181
09/26 Jim Boughton XC Fresh/Soph Boys 134 23:15.5 1105 1115
09/19 39th Rich Engel Classic CC 39th Rich Engel Classic CC JV boys 325 25:44.59 1096 1132
09/12 51st Marshalltown Bobcat xc Invite 51st Marshalltown Bobcat xc Invite 9-10 boys 297 22:54.90 1170 1176
09/07 2024 Linn-Mar Invitational Boys 5K 198 23:16.29 1152 1190
08/31 Cedar Rapids Prairie Invitational Fr-So Fr-So Boys 4K 85 19:00.79 1271 1273
Performance Trends Over Time

Visual representation of performance progression across all seasons. Box plots show rating uncertainty ranges, with the blue line indicating updated ratings and red dotted line showing individual race performance scores.

Reading the Chart: Box plots illustrate rating ranges and uncertainty. Performance scores outside expected ranges can lead to significant rating adjustments, reflecting the dynamic nature of performance evaluation. Season breaks are marked with vertical lines.