Racecast

Sadey Seyferth

Ball State (IN) · Fr · OK WHITEMI D2KENT-OTTAWA · 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 107.3 2026 TF season
Best race 139.0 XC
Races 113
Seasons 10 2016 — 2026

RankedNation #8164·NCAA DI #4555·GREAT LAKES #570·MID AMERICAN #134·IN #307·Team #7 ?

Rating scale ?
Speed rating — all races

Cross Country

XC speed rating

2025 XC 109.7

Ball State (IN) · Grade Fr

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2025-10-03 Notre Dame Burke Memorial Golf Course 5000m 19:14.7 96th · 5th on team 110.4 -1.7% ★CR SR CSR
2025-09-19 Prairies Golf Club 6000m 23:47.6 78th · 5th on team 107.0 -2.1% ★PR ★CR SR CSR
2025-08-29 Indiana University Bloomington 4000m 15:05.6 14th · 4th on team 111.7 0.0% ★PR ★CR SR CSR RSR

2024 XC 126.7

East Grand Rapids (MI) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-11-09 Shepherd High School 5000m 19:53.7 117th · 2nd on team 123.6 -2.8% CSR
2024-11-02 Michigan International Speedway (MIS) 5000m 19:00.1 34th · 2nd on team 128.6 -2.8% SR CSR
2024-10-26 South Christian Sports Park 5000m 19:06.7 6th · 2nd on team 130.7 -1.2% SR CSR RSR
2024-10-16 Riverside Park 5000m 19:14.5 4th · 2nd on team 127.0 -2.8% SR CSR
2024-09-13 Forest Akers East Golf Course 5000m 19:57.8 22nd · 2nd on team 127.8 -0.3% CSR RSR
2024-09-07 Bath 5000m 19:41.9 2nd · 2nd on team 125.3 -1.7% SR CSR RSR
2024-08-23 St Johns High School 5000m 20:18.6 16th · 2nd on team 124.1 -1.0% ★CR SR CSR RSR

2023 XC 132.3

East Grand Rapids (MI) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-11-11 Shepherd High School 5000m 18:25.2 32nd · 1st on team 133.3 -2.8% ★CR CSR
2023-11-04 Michigan International Speedway (MIS) 5000m 18:24.8 12th · 2nd on team 133.3 -2.8% ★CR CSR
2023-10-28 South Christian Sports Park 5000m 19:06.2 2nd · 2nd on team 130.8 ★CR CSR
2023-10-18 Riverside Park 5000m 18:20.7 3rd · 2nd on team 136.1 -2.9% ★PR ★CR SR CSR RSR
2023-10-07 Portage West MS 5000m 18:48 13th · 1st on team 132.3 -2.5% ★CR CSR
2023-10-04 Lowell HS OFFICIAL 5000m 19:49.1 3rd · 1st on team 132.3 +3.0% ★CR CSR
2023-09-30 Shepherd High School 5000m 18:25.8 13th · 2nd on team 134.4 -2.8% PR CR SR CSR RSR
2023-09-20 South Christian Sports Park 5000m 19:06.4 4th · 2nd on team 131.6 -1.2% CR CSR
2023-09-15 Riverside Park 5000m 18:39.1 8th · 2nd on team 132.2 -2.8% PR CR SR CSR RSR
2023-09-07 Riverside Park 5000m 18:48.2 4th · 2nd on team 131.1 -2.9% SR CSR RSR
2023-08-25 South Christian Sports Park 5000m 19:32 5th · 1st on team 127.6 -1.2% SR CSR RSR

2022 XC 130.1

East Grand Rapids (MI) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2022-11-05 Michigan International Speedway (MIS) 5000m 19:02.1 15th · 3rd on team 133.2 -2.8% CSR RSR
2022-10-19 Riverside Park 5000m 18:44.8 7th · 2nd on team 132.2 -2.9% PR CR SR CSR RSR
2022-10-08 Portage West MS 5000m 18:53.7 10th · 2nd on team 130.6 -2.5% PR CR SR CSR RSR
2022-10-05 Lowell HS OFFICIAL 5000m 20:05.2 7th · 1st on team 130.3 +3.0% CR CSR RSR
2022-10-01 Otsego HS 5000m 19:12 12th · 2nd on team 128.2 -4.1% ★CR CSR
2022-09-24 Calvin College - Gainey Athletic Complex 5000m 19:09.8 11th · 3rd on team 128.5 -2.4% ★CR SR CSR
2022-09-16 Forest Akers East Golf Course 5000m 19:45.9 26th · 2nd on team 129.7 -0.3% ★CR CSR RSR
2022-09-10 Bath 5000m 19:36.3 5th · 2nd on team 129.1 -1.7% ★CR CSR RSR
2022-08-19 Portage West MS 5000m 19:29.7 5th · 2nd on team 128.6 -2.5% CR SR CSR RSR

2021 XC 128.6

East Grand Rapids (MI) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2021-11-06 Michigan International Speedway (MIS) 5000m 18:58.5 12th · 3rd on team 131.7 -2.8% PR CR SR CSR RSR
2021-10-29 St. Francis Retreat Center 5000m 20:07.2 6th · 2nd on team 128.2 +0.5% ★CR CSR
2021-10-20 South Christian Sports Park 5000m 19:28.8 8th · 3rd on team 130.9 -1.2% CR CSR RSR
2021-10-09 Portage West MS 5000m 19:43.5 21st · 4th on team 128.3 -2.5% CR CSR
2021-10-06 Brookside Golf Course 5000m 19:23 11th · 5th on team 130.1 -1.5% PR ★CR SR CSR
2021-10-02 Otsego HS 5000m 19:43.5 14th · 4th on team 124.8 -4.1% CR CSR
2021-09-25 Calvin College - Gainey Athletic Complex 5000m 19:31.7 5th · 3rd on team 129.6 -2.4% PR CR SR CSR
2021-09-22 Riverside Park 5000m 19:44.1 14th · 5th on team 126.6 -2.9% CR CSR
2021-09-17 Forest Akers East Golf Course 5000m 19:53.5 29th · 2nd on team 130.8 -0.3% CR CSR RSR
2021-09-11 Bath 5000m 19:39.5 12th · 5th on team 130.1 -1.7% PR CR SR CSR RSR
2021-09-08 Calvin College - Gainey Athletic Complex 5000m 20:04 9th · 4th on team 125.9 -2.4% CR CSR
2021-08-28 Benzie Central HS 5000m 19:46.3 32nd · 4th on team 125.9 -3.7% PR ★CR SR CSR RSR

2020 XC 130.6

East Grand Rapids (MI) · Grade 8

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2020-10-24 GRPS Northeast Campus 2500m 12:21.3 5th · 1st on team 106.2 -0.9% ★PR ★CR SR CSR
2020-10-20 Forest Hills Eastern HS OFFICIAL 3218m 12:47.4 1st · 1st on team 133.1 -1.7% ★CR CSR
2020-10-13 Forest Hills Eastern HS OFFICIAL 3218m 12:59 1st · 1st on team 131.7 -1.7% CR CSR
2020-10-10 GRPS Northeast Campus 3000m 12:19 3rd · 1st on team 131.1 ★PR ★CR SR CSR
2020-10-01 Calvin College - Gainey Athletic Complex 3218m 12:36.6 1st · 1st on team 139.0 +1.1% ★PR ★CR ★R SR CSR RSR
2020-09-29 Forest Hills Eastern HS OFFICIAL 3218m 12:59.7 1st · 1st on team 131.4 -1.7% CR CSR
2020-09-19 GRPS Northeast Campus 3218m 12:41.9 1st · 1st on team 133.8 -2.1% PR ★CR SR CSR
2020-09-15 Byron Center West Middle School 3218m 12:50.7 1st · 1st on team 138.8 +3.8% PR ★CR R SR CSR RSR

2019 XC 129.6

East Grand Rapids (MI) · Grade 7

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2019-10-19 GRPS Northeast Campus 3218m 12:57.2 1st · 1st on team 130.6 -2.1% PR CR R SR CSR RSR
2019-09-17 Coopersville HS 3218m 13:11.8 5th · 5th on team 130.2 -0.6% PR ★CR R SR CSR RSR
2019-09-11 East Rockford MS 2574m 10:29.9 8th · 5th on team 127.9 -1.3% ★PR ★CR SR CSR RSR

2018 XC 128.2

East Grand Rapids (MI) · Grade 6

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2018-10-16 Kraft Meadows MS 3218m 13:21.7 6th · 5th on team 129.0 -0.2% PR ★CR R SR CSR RSR
2018-10-13 Calvin College - Gainey Athletic Complex 3218m 14:23 17th · 6th on team +1.1% PR CR SR CSR
2018-10-02 Spring Lake HS OFFICIAL 3200m 13:26.9 6th · 5th on team 127.0 +1.8% ★CR CSR
2018-09-15 Sparta HS 3200m 13:09.2 8th · 3rd on team 128.6 -2.4% ★PR ★CR R SR CSR RSR

Track & Field

TF speed rating

2026 TF 106.6

Ball State (IN) · Grade Fr

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2026-05-01 Jesse Owens Classic 5000m 18:28.17 39th · 2nd on team 107.2 -1.6% ★PR SR RSR
2026-04-23 UL Clark Woods TF Invitational 5000m 18:44.12 15th · 1st on team 106.7 -0.6% PR SR RSR
2026-04-10 We Fly Challenge 5000m 18:49.9 5th · 1st on team 106.6 -0.2% PR SR RSR
2026-04-03 ISU Pacesetter Invitational 1500m 5:05.01 32nd · 2nd on team 106.2 +0.2% ★PR SR RSR

2025 TF 127.2

East Grand Rapids (MI) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2025-05-31 MHSAA LP Division 2 Finals 1600m 5:21.01 17th · 1st on team 127.1 0.0%
2025-05-24 Distance Night Under the Lights at Houseman Field 1600m 5:04.21 5th · 1st on team 131.9 -1.3% ★PR SR RSR
2025-05-09 OK White Conference Championship - EQ 1600m 5:13.96 1st · 1st on team 127.8 -1.3%
2025-05-09 OK White Conference Championship - EQ 3200m 11:19.65 2nd · 1st on team 127.7 -1.3% SR
2025-05-06 FHC at EGR 3200m 11:39.6 1st · 1st on team 125.0 +0.3%
2025-05-06 FHC at EGR 1600m 5:18.08 1st · 1st on team 127.9 +0.3%
2025-05-02 2025 Shepherd BLUEJAY Invite (EQ) 3200m 11:21.8 25th · 1st on team 127.5 -1.1% SR
2025-05-02 2025 Shepherd BLUEJAY Invite (EQ) 3000m 10:39.37 24th · 1st on team 126.7 -1.1% SR
2025-04-28 EGR and CC at FHN HS 1600m 5:13.77 1st · 1st on team 130.5 +0.5% RSR
2025-04-28 EGR and CC at FHN HS 800m 2:25.92 1st · 1st on team 125.9 +0.5% SR
2025-04-22 GR Christian at EGR 1600m 5:12.36 1st · 1st on team 130.3 +0.3% SR RSR
2025-04-17 EGR, FHE @ Ottawa Hills HS (Houseman Field) 3200m 11:41.29 1st · 1st on team 123.6 -1.3% SR
2025-04-17 EGR, FHE @ Ottawa Hills HS (Houseman Field) 1600m 5:27.15 1st · 1st on team 122.7 -1.3%
2025-03-25 Aquinas HS Indoor Challenge 1600m 5:24.89 3rd · 1st on team 126.2 -0.3% SR RSR

2024 TF 127.8

East Grand Rapids (MI) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-06-01 MHSAA LP Division 2 Finals 1600m 5:10.62 14th · 2nd on team 130.7 0.0%
2024-06-01 MHSAA LP Division 2 Finals 3200m 11:18.48 12th · 1st on team 128.9 0.0%
2024-05-18 MHSAA LP Region 13-2 @ Sparta 1600m 5:08.92 4th · 2nd on team 132.7 +0.4%
2024-05-18 MHSAA LP Region 13-2 @ Sparta 3200m 11:22.87 1st · 1st on team 130.0 +0.4%
2024-05-08 OK White Conference Meet - Two Days (May 8, 9) 1600m 5:05.64 2nd · 2nd on team 134.1 +0.3% PR SR RSR
2024-05-08 OK White Conference Meet - Two Days (May 8, 9) 3200m 11:20.83 1st · 1st on team 130.0 +0.3%
2024-05-06 FHN at EGR 1600m 5:44.99 2nd · 2nd on team 118.6 +0.3%
2024-05-03 2024 Shepherd BLUEJAY Invite 3200m 10:51.69 8th · 2nd on team 133.2 -1.1% ★PR SR RSR
2024-05-03 2024 Shepherd BLUEJAY Invite 3000m 10:15.86 9th · 2nd on team 131.3 -1.1% ★PR SR
2024-05-01 Lowell and EGR at Byron Center 3200m 12:10.91 1st · 1st on team 121.5 +0.4%
2024-05-01 Lowell and EGR at Byron Center 1600m 5:31.29 2nd · 2nd on team 123.7 +0.4%
2024-04-27 EGR Classic 1600m 5:33.45 1st · 1st on team 123.7 +0.3%
2024-04-27 EGR Classic 3200m 11:31.15 2nd · 1st on team 128.8 +0.3%
2024-04-24 OKW Tri Meet 3200m 11:06.1 1st · 1st on team 131.0 -0.4% PR SR
2024-04-20 Cougar Invitational 3200m 11:13 2nd · 1st on team 131.8 +0.3% PR SR RSR
2024-04-20 Cougar Invitational 800m 2:25.38 11th · 1st on team 127.1 +0.3% SR
2024-04-18 Greenville v EGR, EGR v FHC, Greenville vs FHC HS 3200m 11:50.31 2nd · 1st on team 123.7 +0.3% SR
2024-04-18 Greenville v EGR, EGR v FHC, Greenville vs FHC HS 1600m 5:18.8 3rd · 2nd on team 127.8 +0.3% SR
2024-04-09 Northview and EGR at GR Christian 800m 2:27 1st · 1st on team 124.6 +0.1% SR
2024-03-26 Aquinas HS Indoor Challenge 1600m 5:21.15 1st · 1st on team 127.9 -0.3% SR RSR
2024-02-10 AQ MITS #4 800m 2:31.48 5th · 1st on team 122.2 -0.3% SR RSR

2023 TF 126.3

East Grand Rapids (MI) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-06-03 MHSAA LP Division 2 Finals 3200m 11:16.87 4th · 1st on team 131.1 +0.2%
2023-05-19 MHSAA LP Region 13-2 @ Sparta 3200m 11:13 4th · 1st on team 131.0 +0.4% PR SR
2023-05-12 OK White Conference Meet 1600m 5:11.43 6th · 2nd on team 131.2 +0.4% PR SR
2023-05-12 OK White Conference Meet 800m 2:23.74 5th · 2nd on team 127.8 +0.4% ★PR SR
2023-05-06 2023 West Ottawa Von Ins Invite 3200m 11:16.45 1st · 1st on team 131.4 +0.5% PR SR RSR
2023-05-03 OK White Dual @ Lowell 3200m 11:59.58 2nd · 1st on team 122.3 -0.4%
2023-04-29 EGR Classic 3200m 11:27.78 3rd · 1st on team 127.9 +0.3% PR SR
2023-04-26 FHC at EGR 1600m 5:30.56 2nd · 2nd on team 123.5 +0.3%
2023-04-26 FHC at EGR 800m 2:26.51 3rd · 2nd on team 125.5 +0.3% PR SR
2023-04-22 Cougar Invite 800m 2:27.29 13th · 2nd on team 125.4 +0.3% RSR
2023-04-22 Cougar Invite 1mile 5:21.05 6th · 1st on team 128.8 +0.3% ★PR SR RSR
2023-04-19 Greenville, EGR at FHN HS 800m 2:26.94 3rd · 2nd on team 125.2 +0.5% PR SR RSR
2023-04-13 Northview at EGR 1600m 5:30.22 1st · 1st on team 124.2 +0.3% PR SR RSR
2023-04-11 OK White Tri at GR Christian 800m 2:31.53 2nd · 2nd on team 121.0 +0.1%
2023-04-11 OK White Tri at GR Christian 1600m 5:36.46 3rd · 2nd on team 121.4 +0.1% PR SR
2023-03-28 Aquinas Indoor Track & Field Challenge 800m 2:29.96 2nd · 2nd on team 123.7 -0.3% PR SR RSR

2016 TF 109.3

Lakeside (CA) · Grade 3

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2016-06-01 LBW 800m 3:24.32 6th · 5th on team 109.3 +0.3% PR R SR RSR