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John Portz

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
10/19 Iowa State Qualifier - 1A - North Linn Mens 5,000 Meters Varsity 111 26:02.79 810 816
10/10 Tri-Rivers Conference XC Meet @ Little Bear Country Club Mens 5,000 Meters Varsity Boys 84 27:59.20 822 823
10/05 Jim Hetrick Invitational (Central DeWitt) Mens 5,000 Meters Boys Freshmen/Sophmore 5K 78 27:58.5 808 823
09/28 Western Dubuque Invitational Mens 5,000 Meters Varsity 122 29:10.5 822 840
09/25 Bill Bails Invitational (North Cedar) Mens 5,000 Meters Boys Junior Varsity 5K 21 28:20.5 852 854
09/18 Comet Cross Country Invitational XC Mens 5,000 Meters Varsity Boys 75 28:07.09 858 857
09/11 Midland XC Mens 5,000 Meters Varsity Boys 37 28:17.40 848 856
08/29 Bellevue Twilight Invitational 2023 Boys 4000 Meter Run Finals 31 20:06 866 873
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.