Racecast

Harrison Spilsbury

Heritage (CO) · 10 · CONTINENTALCO D5A5A · Compare head to head

what a rating means
100 is the average runner in the athlete's pool; a rating of 133 means 33% faster than that average runner. Ratings are distance-normalised and course-adjusted, so a hard course and a fast track land on one number. Each pool (high school boys, college women, middle school…) has its own average, and the HS-equivalent view puts every pool on the high-school scale.
Athlete rating
Races 16
Seasons 2 2025 — 2026
Speed rating — all races

Track & Field

TF speed rating

2026 TF

Heritage (CO) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2026-05-02 Continental League Championships 100m 12.38 36th · 3rd on team +2.9%
2026-04-18 Dakota Ridge Invitational 400m 57.01 18th · 1st on team +2.1% SR
2026-04-03 City of Littleton Championships 200m 25.35 20th · 4th on team +1.7% SR
2026-04-02 Valor Invitational 100m 12.41 49th · 4th on team +2.2%
2026-03-28 Niwot Invitational 100m 12.36 97th · 2nd on team +1.8% SR
2026-03-11 Thornton Early Bird 100m 12.75 26th · 3rd on team +2.6% SR

2025 TF

Heritage (CO) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2025-04-25 Liberty Bell Invitational 100m 12.2 59th · 2nd on team +1.7%
2025-04-21 Huskie Twilight 100m 11.96 64th · 1st on team +2.9% ★PR SR
2025-04-21 Huskie Twilight 200m 24.08 49th · 1st on team +2.9% ★PR SR
2025-04-11 Pomona Invite Day #1 100m 12.13 73rd · 1st on team +2.1%
2025-04-11 Pomona Invite Day #1 200m 24.5 75th · 1st on team +2.1% PR SR
2025-03-22 Valor Invitational 200m 24.76 18th · 2nd on team +2.2%
2025-03-22 Valor Invitational 400m 57.51 19th · 2nd on team +2.2%
2025-03-22 Valor Invitational 100m 12.02 36th · 3rd on team +2.2% PR SR
2025-03-20 Denver South Ravens Invite 400m 56.73 36th · 2nd on team +2.0% ★PR SR
2025-03-20 Denver South Ravens Invite 200m 24.7 42nd · 2nd on team +2.0% PR SR