Bobby 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.

2025 Season 6 races ▼

Date	Event	Race	Place	Time	Perf Score	Rating
10/15	CIML Conference CC	CIML CC Championship 9-10 boys	183	22:20.70	----	----
10/09	Fort Dodge CC Invite	Ft Dodge CC Invite JV Boys	434	21:53.90	----	----
10/02	Southeast Polk CC Invite	Southeast Polk CC Invite JV boys	225	23:05.59	----	----
09/20	20th Heartland Classic CC	20th Heartland Classic JV Boys	327	22:50.79	----	----
09/11	52nd Bobcat CC Invitational	52nd Bobcat CC Invite 9-10 boys	264	22:47.20	----	----
09/04	Kirk Schmaltz CC Invitational	57th Ames Schmaltz CC Invite 9-10 Boys	168	22:16.09	----	----

Performance Trends Over Time

Premium Analytics Feature

Access detailed performance trend charts showing rating progression, uncertainty ranges, and performance analytics across all seasons.

Visual analytics include box plots for rating uncertainty, trend lines for performance progression, and season markers for comprehensive performance tracking.

Unlock Detailed Performance Analytics

Access comprehensive performance scores and rating data to track runner development and analyze competitive performance across all seasons.