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Lydia Zylstra

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
10/18 Unity Christian Invite Girls 5000m Junior Varsity 29 27:11.75 1304 1292
10/08 Cherokee XC Meet Girls 5000m Junior Varsity 58 29:14.96 1218 1261
09/16 West Lyon XC Invite Girls 5000m Varsity & JV 19 28:08.11 1409 1372
09/10 Sibley XC Invite Girls 5000m JV 6 28:48.35 1345 1339
09/03 2024 BHRV Girls 5000m Junior Varsity JV 12 28:54.15 1332 1331
Date Event Race Place Time Perf Score Rating
10/03 Cherokee XC Meet 2023 Varsity Girls 5000 Meter Run Finals 112 27:35.03 1298 1308
09/26 Western Christian XC Invitational 2023 JV Girls 5000 Meter Run Finals 51 29:02.60 1287 1318
09/21 Sioux Center XC Invitational 2023 JV Girls 5000 Meter Run Finals 62 27:50.42 1328 1342
09/11 West Lyon Wildcat Invitational 2023 JV Girls 5000 Meter Run Finals 12 28:19.44 1351 1357
09/05 Sibley-Ocheyedan Invitational Womens 5,000 Meters Junior Varsity 20 29:49.54 1345 1363
08/29 Boyden Hull Night Hawk 2023 JV Girls 5000 Meter Run Finals 18 30:33.94 1385 1387
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.