Racecast

Charlotte Mertz

Grosse Pointe South (MI) · 9 · MACMI D1WAYNE · 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 97.4 2025 XC season
Best race 101.5 XC
Races 29
Seasons 2 2025 — 2026

RankedNation #81902·MI #3735·MI D1 #2101·MAC #207·Team #43 ?

Speed rating — all races

Cross Country

XC speed rating

2025 XC 95.4

Grosse Pointe South (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2025-10-18 Lake St. Clair Metropark OFFICIAL 5000m 24:03.2 54th · 24th on team 101.5 -3.7% ★PR ★CR ★R SR CSR RSR
2025-10-04 Willow Metropark OFFICIAL 5000m 25:14.8 60th · 18th on team 97.8 -2.3% PR ★CR R SR CSR RSR
2025-09-23 Stony Creek Metropark 5000m 26:21 63rd · 24th on team 94.6 -1.8%
2025-09-20 Orion Oaks County Park 5000m 25:39.5 33rd · 15th on team 96.3 -1.6% PR ★CR SR CSR
2025-09-13 Stony Creek Metropark 5000m 26:01.3 161st · 24th on team 93.0 -1.8% ★CR CSR
2025-09-09 Warren Mott HS 5000m 25:57 54th · 23rd on team 96.8 0.0% PR ★CR R SR CSR RSR
2025-09-06 Algonac HS OFFICIAL 5000m 26:06.1 22nd · 18th on team 92.6 -3.4% PR ★CR R SR CSR RSR
2025-08-26 Clawson City Park 5000m 28:51.8 83rd · 32nd on team 90.2 +3.8% PR ★CR R SR CSR RSR

Track & Field

TF speed rating

2026 TF —

Grosse Pointe South (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2026-05-22 13th Wayne County Championship pv 6' 0" — — +0.5%
2026-05-22 13th Wayne County Championship 200m 30.98 22nd · 2nd on team — +0.5%
2026-05-22 13th Wayne County Championship 100m 14.79 10th · 1st on team — +0.5%
2026-05-13 26th River Rat Girls JV Invite pv 6' 0" — — +0.2%
2026-05-13 26th River Rat Girls JV Invite 200m 31.33 10th · 1st on team — +0.2%
2026-05-13 26th River Rat Girls JV Invite 100m 15 20th · 1st on team — +0.2%
2026-05-05 MAC WHITE DIVISION MEET (EQ Approved) pv NH — — +1.1%
2026-04-28 MAC WHITE: GPS @ HFII pv NM — — +2.2%
2026-04-28 MAC WHITE: GPS @ HFII 200m 31.04 1st · 1st on team — +2.2%
2026-04-28 MAC WHITE: GPS @ HFII 100m 14.74 4th · 2nd on team — +2.2% ★PR SR
2026-04-25 The Steve Johnson Relays pv 6-00.00 — — +0.1%
2026-04-20 MAC White: Stevenson @ GPS pv 5' 0" — — -0.2%
2026-04-20 MAC White: Stevenson @ GPS 100m 15.24 4th · 3rd on team — -0.2% PR SR
2026-04-18 33rd Warrior Classic (EQ Approved) pv NH — — +0.8%
2026-04-13 GP North/GP South @ Port Huron Northern pv NH — — +1.1%
2026-04-13 GP North/GP South @ Port Huron Northern 200m 30.67 5th · 1st on team — +1.1% ★PR SR
2026-04-11 Patriot Relays pv 5' 0" — — +0.8%
2026-04-07 MAC White: Eisenhower @ GPS pv NH — — +2.2%
2026-04-07 MAC White: Eisenhower @ GPS 100m 15.88 7th · 6th on team — +2.2% PR SR
2026-03-25 Warren Mott vs Grosse Pointe South pv 4' 0" — — -0.2%
2026-03-25 Warren Mott vs Grosse Pointe South 200m 31.38 2nd · 2nd on team — -0.2% PR SR