Racecast

Joshua Postuma

Grass Lake (MI) · 12 · CASCADESMI D3 · 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 109.7 2023 TF season
Best race 115.9 TF
Races 66
Seasons 4 2021 — 2024

RankedNation #49756·MI #2130·MI D3 #524·CASCADES #26·Team #9 ?

Training paces & VO2max → critical speed 5:41/mi, fitted from 4 races in 2022

Speed rating — all races

Cross Country

XC speed rating

2021 XC 104.7

Grass Lake (MI) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2021-10-20 Ella Sharp Park OFFICIAL 5000m 20:11.6 23rd · 2nd on team 104.5 -2.2%
2021-10-16 Ella Sharp Park OFFICIAL 5000m 20:09.1 44th · 3rd on team 105.0 -2.2% ★CR CSR
2021-10-09 Portage West MS 5000m 19:43.2 134th · 4th on team 106.9 -2.5% ★PR ★CR SR CSR
2021-09-28 Grass Lake HS 5000m 19:47.8 11th · 3rd on team 107.9 -0.9% PR ★CR SR CSR RSR
2021-09-25 Ella Sharp Park OFFICIAL 5000m 20:29.7 57th · 2nd on team 102.9 -2.2% CR CSR
2021-09-21 Heritage Park (Hanover) OFFICIAL 5000m 20:04 10th · 2nd on team 104.3 -1.5% PR ★CR SR CSR
2021-09-17 Forest Akers East Golf Course 5000m 20:46.9 103rd · 3rd on team 104.3 -0.3% PR ★CR SR CSR RSR
2021-09-08 Springport HS 5000m 21:11.4 19th · 3rd on team 101.5 -0.2% PR ★CR SR CSR RSR

Track & Field

TF speed rating

2024 TF —

Grass Lake (MI) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-05-21 Cascades Conference Championship 300mh 46.66 10th · 1st on team — +0.4%
2024-05-17 MHSAA LP Region 25-3 @ Hillsdale 300mh 45.84 20th · 2nd on team — 0.0%
2024-05-10 East Jackson Dome Classic 300mh 45.99 10th · 1st on team — +0.4%
2024-05-07 Manchester @ Grass Lake 300mh 48.44 3rd · 2nd on team — +1.5%
2024-04-30 Napoleon @ Grass Lake 300mh 45.34 2nd · 1st on team — +1.5% ★PR SR
2024-04-26 Auburn C. Perkins Spartan Invite 300mh 46.5 8th · 2nd on team — +0.6%
2024-04-23 Grass Lake at Michigan Center 300mh 46.49 3rd · 2nd on team — +1.5% PR SR
2024-04-19 Ralph Rice Invitational 300mh 47.12 11th · 2nd on team — +0.8%
2024-04-16 Grass Lake, East Jackson @ Leslie 300mh 46.85 2nd · 1st on team — +1.1% PR SR
2024-04-13 50th Annual Warrior Invite 300mh 52.07 12th · 2nd on team — +1.5% PR SR
2024-04-09 Spring Tune Up vs Stockbridge 200m 26.24 7th · 6th on team — +1.5% ★PR SR

2023 TF 108.8

Grass Lake (MI) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-05-05 44th Manchester Metrics 1600m 5:07.64 6th · 1st on team 110.4 +1.2% SR RSR
2023-04-21 Ralph Rice Invitational (@ Parma-Western) 1600m 5:09.59 11th · 1st on team 109.2 +0.8% SR RSR
2023-04-18 Michigan Center Vs Grass Lake and East Jackson 800m 2:23.39 3rd · 1st on team 107.7 +1.5% SR RSR
2023-04-18 Michigan Center Vs Grass Lake and East Jackson 1600m 5:19.56 3rd · 1st on team 107.7 +1.5% SR

2022 TF 110.0

Grass Lake (MI) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2022-05-31 Selby Track Classic 1600m 5:00 7th · 2nd on team 114.0 +0.4%
2022-05-24 Cascades Conference Championship 1600m 4:57.69 6th · 2nd on team 114.2 +0.3%
2022-05-24 Cascades Conference Championship 800m 2:15.01 5th · 2nd on team 112.9 +0.3%
2022-05-20 MHSAA LP Region 25-3 @ Hillsdale 1600m 5:14.48 15th · 2nd on team 108.2 0.0%
2022-05-20 MHSAA LP Region 25-3 @ Hillsdale 800m 2:17.62 11th · 2nd on team 110.9 0.0%
2022-05-13 East Jackson Dome Classic 1600m 4:54.27 7th · 2nd on team 115.9 +0.4% ★PR ★R SR RSR
2022-05-10 Manchester & Addison @ Grass Lake 800m 2:17.7 2nd · 2nd on team 112.3 +1.5%
2022-05-10 Manchester & Addison @ Grass Lake 1600m 5:01.9 3rd · 2nd on team 114.3 +1.5%
2022-05-06 42nd Annual Stockbridge Invitational 800m 2:14.38 9th · 2nd on team 113.5 -0.3% ★PR SR
2022-05-04 Michigan Center vs Grass Lake & Vandercook Lake 1600m 4:56.61 2nd · 2nd on team 115.7 +1.5% PR R SR RSR
2022-05-04 Michigan Center vs Grass Lake & Vandercook Lake 800m 2:25.75 4th · 3rd on team 105.7 +1.5%
2022-04-29 Auburn C. Perkins Memorial/Spartan Invite 800m 2:14.99 6th · 2nd on team 112.9 +0.6% PR R SR RSR
2022-04-26 Grass Lake vs Hanover Horton 800m 2:32.3 4th · 2nd on team 102.1 +1.5%
2022-04-26 Grass Lake vs Hanover Horton 1600m 5:09.9 2nd · 1st on team 111.8 +1.5% PR R SR RSR
2022-04-20 Napoleon vs. Grass Lake & East Jackson 1600m 5:13 4th · 2nd on team 108.5 +0.3% PR R SR RSR
2022-04-20 Napoleon vs. Grass Lake & East Jackson 800m 2:20.7 4th · 2nd on team 108.4 +0.3% PR SR
2022-04-12 Grass Lake and Hanover @ Western HS 800m 2:27 5th · 2nd on team 103.8 +0.8% PR SR
2022-04-12 Grass Lake and Hanover @ Western HS 3200m 11:50.23 4th · 1st on team 104.1 +0.8% SR
2022-04-12 Grass Lake and Hanover @ Western HS 1600m 5:22.02 5th · 2nd on team 105.8 +0.8% SR RSR
2022-04-09 48th Annual Warrior Invite 3200m 11:51.46 3rd · 1st on team 104.7 +1.5% SR RSR

2021 TF 102.0

Grass Lake (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2021-06-01 Selby Track Classic @ East Jackson 3200m 12:21.1 9th · 1st on team 99.6 +0.4%
2021-05-25 Cascades Conference @ MC 3200m 11:47.58 9th · 1st on team 106.4 +1.5% ★PR SR
2021-05-25 Cascades Conference @ MC 1600m 5:19.75 12th · 2nd on team 108.3 +1.5% R RSR
2021-05-21 MHSAA LP Region 25-3 @ Hillsdale 3200m 11:54.37 17th · 1st on team 103.7 0.0% PR SR
2021-05-21 MHSAA LP Region 25-3 @ Hillsdale 1600m 5:20.27 20th · 2nd on team 106.6 0.0%
2021-05-15 Hillsdale Jack Beilfuss Invitational 1600m 5:19.33 8th · 2nd on team 106.5 0.0% PR SR
2021-05-15 Hillsdale Jack Beilfuss Invitational 3200m 12:10.82 10th · 1st on team 100.9 0.0%
2021-05-11 Grass Lake, Michigan Center @ Hanover lj 14-00.00 — — +1.6%
2021-05-11 Grass Lake, Michigan Center @ Hanover 1600m 5:29.22 4th · 2nd on team 105.3 +1.6%
2021-05-11 Grass Lake, Michigan Center @ Hanover 3200m 12:23.21 4th · 1st on team 101.0 +1.6%
2021-05-07 East Jackson Dome Classic 1600m 5:33.62 12th · 1st on team 102.5 +0.4%
2021-05-07 East Jackson Dome Classic 3200m 12:04.58 7th · 1st on team 101.9 +0.4% PR SR
2021-05-04 Napoleon @ Grass Lake lj 14' 4 — — +1.5%
2021-05-04 Napoleon @ Grass Lake hj SCR — — +1.5%
2021-05-04 Napoleon @ Grass Lake 3200m 12:41.3 4th · 1st on team 98.4 +1.5%
2021-05-04 Napoleon @ Grass Lake 1600m 5:23.2 3rd · 1st on team 107.0 +1.5% PR R SR RSR
2021-04-27 East Jackson, Grass Lake @ Vandercook Lake hj NH — — +1.7%
2021-04-27 East Jackson, Grass Lake @ Vandercook Lake 1600m 5:49.5 3rd · 3rd on team 99.3 +1.7% PR R SR RSR
2021-04-27 East Jackson, Grass Lake @ Vandercook Lake 3200m 12:35.6 2nd · 2nd on team 100.1 +1.7% PR R SR RSR
2021-04-23 Grass Lake w/Addison, Manchester hj NH — — +1.5%
2021-04-23 Grass Lake w/Addison, Manchester 3200m 12:49 5th · 2nd on team 97.6 +1.5% PR R SR RSR
2021-04-23 Grass Lake w/Addison, Manchester 1600m 5:54 6th · 3rd on team 97.8 +1.5% PR R SR RSR
2021-04-10 47th Annual Warrior Invite 3200m 13:18.61 8th · 1st on team 93.7 +1.5% PR R SR RSR