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Seryna Cox

Machesney Park (Harlem) (IL) · 12 · NIC-10IL D3A · Compare head to head

Athlete rating 99.6 2024 XC season
Best race 105.6 XC
Races 142
Seasons 5 2022 — 2026

RankedNation #75775·IL #3761·IL D3A #16138·NIC-10 #70·Team #29 ?

Cross Country

2024 XC 103.1

Machesney Park (Harlem) (IL) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-10-19 Highland Community College 4828m 24:06.45 12th · 5th on team 104.5 +0.009 ★CR SR CSR
2024-10-09 Lake Forest High School 3218m 15:33.74 59th · 3rd on team 100.2 -0.032 SR CSR
2024-10-05 Niles West High School 3218m 15:48.9 37th · 1st on team 104.7 +0.028 ★CR SR CSR RSR

2023 XC 97.3

Machesney Park (Harlem) (IL) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-10-14 Kieselburg County Forest Preserve 4828m 26:09 20th · 4th on team 98.7 +0.024 CSR RSR
2023-10-05 Lake Forest High School 3218m 15:50.02 48th · 3rd on team 98.3 -0.032 SR CSR RSR
2023-09-23 Hoover Park 4828m 26:34.5 58th · 4th on team 95.3 +0.001 CSR
2023-09-09 Lake Park HS (East Campus) 4828m 25:48.1 204th · 3rd on team 96.7 -0.003 ★CR SR CSR
2023-09-05 Kieselburg County Forest Preserve 4184m 23:57.3 20th · 5th on team 97.2 +0.076 ★PR ★CR SR CSR RSR

2022 XC 101.9

Machesney Park (Harlem) (IL) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2022-10-15 Boylan Catholic High School 4828m 23:56.3 21st · 3rd on team 105.2 +0.000 ★PR ★CR SR CSR
2022-10-06 Lake Forest High School 3218m 14:56.5 29th · 1st on team 105.6 -0.032 ★PR ★CR ★R SR CSR RSR
2022-10-01 Niles West High School 4828m 25:13.2 143rd · 2nd on team 101.2 +0.005 ★CR CSR
2022-09-24 Hoover Park 4828m 24:30 134th · 8th on team 102.4 +0.001 PR ★CR R SR CSR RSR
2022-09-10 Lake Park HS (East Campus) 4828m 26:02.2 165th · 2nd on team 97.5 -0.003 PR CR SR CSR
2022-09-06 Boylan Catholic High School 3540m 17:33.2 23rd · 4th on team 101.4 -0.010 ★PR ★CR R SR CSR RSR
2022-09-03 Kieselburg County Forest Preserve 4828m 26:03.8 14th · 1st on team 100.1 +0.024 PR ★CR R SR CSR RSR

Track & Field

2026 TF

Machesney Park (Harlem) (IL) · Grade 12

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2026-05-06 NIC-10 Girls Conference Championship 100mh 17.47 5th · 1st on team -0.025 ★PR SR
2026-05-06 NIC-10 Girls Conference Championship 300mh 54.5 7th · 2nd on team -0.025
2026-05-01 Woodstock Steve Erwin Invitational 300mh 53.4 6th · 2nd on team -0.030
2026-05-01 Woodstock Steve Erwin Invitational 100mh 17.62 3rd · 1st on team -0.030 SR
2026-04-28 NIC-10 Quad - BNorth vs. Auburn, Belvidere, & Harlem 100m 13.94 12th · 2nd on team -0.034 SR
2026-04-28 NIC-10 Quad - BNorth vs. Auburn, Belvidere, & Harlem 200m 29.8 14th · 3rd on team -0.034 SR
2026-04-28 NIC-10 Quad - BNorth vs. Auburn, Belvidere, & Harlem 300mh 53.03 2nd · 2nd on team -0.034
2026-04-25 Harlem Girls Invitational lj 4.00m -0.033
2026-04-25 Harlem Girls Invitational 100mh 17.68 3rd · 1st on team -0.033 SR
2026-04-25 Harlem Girls Invitational 300mh 52.95 3rd · 2nd on team -0.033
2026-04-22 39th Annual Rock Island Girls ABC Invitational lj 4.20m -0.037
2026-04-22 39th Annual Rock Island Girls ABC Invitational 300mh 51.79 3rd · 1st on team -0.037 SR
2026-04-11 St. Charles North Girls Invitational lj 4.39m -0.033
2026-04-11 St. Charles North Girls Invitational 300mh 56.72 14th · 2nd on team -0.033 SR
2026-04-07 Harlem Girls Triangular 300mh 1:03.59 1st · 1st on team -0.033 SR
2026-03-21 NIC-10 Indoor Championship Meet lj 4.16m -0.047
2026-03-21 NIC-10 Indoor Championship Meet 200mh 32.91 7th · 2nd on team -0.047 ★PR SR
2026-03-21 NIC-10 Indoor Championship Meet 60mh 10.75 6th · 1st on team -0.047 ★PR SR
2026-03-14 (Burlington) Central Indoor T&F Girls Preview 2026 lj 4.27m -0.037
2026-03-07 Rockford Auburn Girls Showcase lj 4.28m -0.046
2026-03-03 Girls Quad 2 55mh 10.34 6th · 2nd on team -0.016 ★PR SR
2026-03-03 Girls Quad 2 400m 1:18.05 15th · 3rd on team -0.016
2026-02-28 Rockford Auburn Girls Var/JV Invitational lj 4.20m -0.046
2026-02-28 Rockford Auburn Girls Var/JV Invitational 400m 1:15.84 41st · 1st on team -0.046 SR
2026-02-28 Rockford Auburn Girls Var/JV Invitational 60m 8.82 36th · 2nd on team -0.046 ★PR SR
2026-02-28 Rockford Auburn Girls Var/JV Invitational 200m 30.57 50th · 2nd on team -0.046 SR
2026-02-21 Hononegah Girls Classic 200mh 34.11 10th · 1st on team -0.047 SR
2026-02-21 Hononegah Girls Classic 60mh 10.95 11th · 1st on team -0.047 SR

2025 TF

Machesney Park (Harlem) (IL) · Grade 11

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2025-05-14 IHSA Class 3A TRG Sectional - #01 Huntley pv NH -0.036
2025-05-14 IHSA Class 3A TRG Sectional - #01 Huntley 300mh 53.4 17th · 2nd on team -0.036
2025-05-14 IHSA Class 3A TRG Sectional - #01 Huntley 100mh 18.15 13th · 2nd on team -0.036
2025-05-08 NIC 10 Girls Track & Field Championship pv 2.44m -0.026
2025-05-08 NIC 10 Girls Track & Field Championship 300mh 51.4 5th · 2nd on team -0.026 ★PR SR
2025-05-08 NIC 10 Girls Track & Field Championship 100mh 17.51 5th · 2nd on team -0.026 PR SR
2025-05-02 Woodstock Steve Erwin Invitational pv 2.36m -0.030
2025-05-02 Woodstock Steve Erwin Invitational 100mh 17.99 5th · 2nd on team -0.030
2025-05-02 Woodstock Steve Erwin Invitational 300mh 52.24 7th · 2nd on team -0.030
2025-04-26 Harlem Girls Invitational 300mh 51.79 3rd · 2nd on team -0.033 PR SR
2025-04-26 Harlem Girls Invitational 100mh 17.54 3rd · 2nd on team -0.033 PR SR
2025-04-22 Jefferson Co-Ed Quad pv 2.13m -0.035
2025-04-19 38th Annual Rock Island Girls' ABC Track and Field Invitational 200m 29.52 8th · 1st on team -0.037 ★PR SR
2025-04-19 38th Annual Rock Island Girls' ABC Track and Field Invitational 100mh 18.75 5th · 1st on team -0.037
2025-04-19 38th Annual Rock Island Girls' ABC Track and Field Invitational 300mh 53.22 4th · 1st on team -0.037
2025-04-15 Harlem CoEd Triangular 100m 13.87 11th · 4th on team -0.033 ★PR SR
2025-04-15 Harlem CoEd Triangular 200m 29.63 9th · 6th on team -0.033 PR SR
2025-04-12 St. Charles North Girls Invitational 300mh 53.48 12th · 2nd on team -0.033
2025-04-12 St. Charles North Girls Invitational 100mh 18.31 9th · 2nd on team -0.033
2025-04-09 Girls BNorth v Boylan & Harlem lj 4.38m -0.034
2025-04-09 Girls BNorth v Boylan & Harlem 100m 15.2 16th · 6th on team -0.034 PR SR
2025-04-09 Girls BNorth v Boylan & Harlem 200m 30.13 6th · 3rd on team -0.034 PR SR
2025-04-05 2025 Gene Shipley Track and Field Invitational 300mh 52.01 2nd · 1st on team -0.041 PR SR
2025-04-05 2025 Gene Shipley Track and Field Invitational 100mh 18.28 2nd · 1st on team -0.041 PR SR
2025-03-22 NIC-10 Indoor Championship Meet 60mh 10.9 7th · 2nd on team -0.047
2025-03-22 NIC-10 Indoor Championship Meet 200mh 33.32 7th · 2nd on team -0.047 PR SR
2025-03-15 2025 Central HS Girls Indoor Preview 60mh 10.86 17th · 2nd on team -0.037 PR SR
2025-03-04 Sycamore Girls Quad #2 lj 4.27m -0.016
2025-03-04 Sycamore Girls Quad #2 55m 8.47 17th · 3rd on team -0.016 ★PR SR
2025-03-04 Sycamore Girls Quad #2 200m 31.99 20th · 5th on team -0.016 SR
2025-02-22 Hononegah Girls Indoor Classic 60mh 11.27 14th · 1st on team -0.047 PR SR
2025-02-15 Oswego Girls Quad lj 3.94m -0.016
2025-02-15 Oswego Girls Quad 55mh 11.22 7th · 1st on team -0.016 PR SR
2025-02-15 Oswego Girls Quad 600m 2:17.53 17th · 3rd on team -0.016 ★PR SR

2024 TF

Machesney Park (Harlem) (IL) · Grade 10

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2024-05-08 IHSA Class 3A TRG Sectional - #1 Huntley pv 2.07m -0.036
2024-05-02 NIC 10 Girls Conference Meet pv 2.13m -0.042
2024-04-23 NIC-10 Tri B.North, Guilford, Harlem - CoEd pv 7' 6 -0.034
2024-04-23 NIC-10 Tri B.North, Guilford, Harlem - CoEd 300mh 57.8 3rd · 2nd on team -0.034
2024-04-23 NIC-10 Tri B.North, Guilford, Harlem - CoEd 100mh 19.49 4th · 4th on team -0.034 PR SR
2024-04-23 NIC-10 Tri B.North, Guilford, Harlem - CoEd 200m 30.89 8th · 4th on team -0.034 PR SR
2024-04-20 Abbi MacGregor Invitational pv 7-00.00 -0.033
2024-04-20 Abbi MacGregor Invitational 100mh 19.76 7th · 2nd on team -0.033 PR SR
2024-04-20 Abbi MacGregor Invitational 300mh 56.95 3rd · 1st on team -0.033
2024-04-13 37th Annual Rock Island Girls ABC Invitational pv 2.00m -0.037
2024-04-13 37th Annual Rock Island Girls ABC Invitational 300mh 54.91 3rd · 1st on team -0.037 PR SR
2024-04-13 37th Annual Rock Island Girls ABC Invitational 100mh 19.78 7th · 1st on team -0.037 PR SR
2024-04-10 NIC-10 Quadrangular 200m 31.16 27th · 4th on team -0.040 PR SR
2024-04-10 NIC-10 Quadrangular 300mh 56.55 4th · 3rd on team -0.040 PR SR
2024-03-29 Gene Shipley Track & Field Invitational pv 2.13m -0.041
2024-03-29 Gene Shipley Track & Field Invitational 100mh 20.76 6th · 1st on team -0.041 SR
2024-03-16 NIC-10 Indoor Championship Meet pv 2.13m -0.047
2024-03-09 2024 Central HS Girls Indoor Preview pv 1.76m -0.037
2024-02-27 Quad #2 pv 2.00m -0.016
2024-02-27 Quad #2 55mh 11.67 7th · 5th on team -0.016 PR SR
2024-02-17 Hononegah Girls Indoor Classic pv 1.78m -0.047
2024-02-17 Hononegah Girls Indoor Classic 60mh 12.47 16th · 1st on team -0.047 PR SR
2024-02-10 Oswego Girls Quad Meet pv 1.75m -0.016
2024-02-10 Oswego Girls Quad Meet 55mh 12.14 15th · 2nd on team -0.016 PR SR

2023 TF

Machesney Park (Harlem) (IL) · Grade 9

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2023-05-10 2023 IHSA Class 3A TRG Sectional - #1 Huntley pv 2.08m -0.036
2023-05-04 NIC-10 Girls Conference Championship pv 7' 0 -0.027
2023-05-04 NIC-10 Girls Conference Championship 300mh 1:00.21 5th · 2nd on team -0.027 PR SR
2023-05-04 NIC-10 Girls Conference Championship 100mh 20.51 6th · 2nd on team -0.027
2023-04-28 Woodstock Steve Erwin Invitational pv 1.98m -0.024
2023-04-25 Harlem v Guilford, Boylan pv NH -0.033
2023-04-25 Harlem v Guilford, Boylan 200m 31.43 11th · 5th on team -0.033
2023-04-25 Harlem v Guilford, Boylan 100mh 20.23 5th · 2nd on team -0.033 PR SR
2023-04-22 Abbi MacGregor Invitational pv 6-06.00 -0.033
2023-04-22 Abbi MacGregor Invitational 400m 1:16.26 1st · 1st on team -0.033
2023-04-22 Abbi MacGregor Invitational 100mh 20.85 2nd · 1st on team -0.033
2023-04-19 Jefferson v Harlem, Hononegah pv 4' 6 -0.040
2023-04-19 Jefferson v Harlem, Hononegah 100mh 20.76 3rd · 2nd on team -0.040 PR SR
2023-04-19 Jefferson v Harlem, Hononegah 400m 1:14.2 5th · 4th on team -0.040 ★PR SR
2023-04-14 36th Annual Rock Island Girls ABC Invite pv 1.98m -0.037
2023-04-14 36th Annual Rock Island Girls ABC Invite 300mh 1:00.72 7th · 1st on team -0.037
2023-04-11 East vs Auburn & Harlem Triangular pv 2.01m -0.042
2023-04-11 East vs Auburn & Harlem Triangular 200m 31.24 10th · 4th on team -0.042 PR SR
2023-04-11 East vs Auburn & Harlem Triangular 300mh 1:03.21 5th · 2nd on team -0.042
2023-04-08 Saint Charles North Varsity Invite 100mh 22.01 14th · 2nd on team -0.028 PR SR
2023-04-05 Harlem v Auburn, Freeport, Belvidere 200m 32.63 10th · 5th on team -0.033
2023-04-03 Gene Shipley Track and Field Invitational pv 1.98m -0.041
2023-04-03 Gene Shipley Track and Field Invitational 300mh 1:00.38 4th · 1st on team -0.041 PR SR
2023-03-28 Lady Cavs Relay Invite pv 1.67m -0.026
2023-03-18 NIC-10 Indoor Championships pv 1.67m -0.047
2023-03-18 NIC-10 Indoor Championships 200mh 37.38 13th · 2nd on team -0.047 PR SR
2023-03-11 CHS Girls Indoor Preview pv 1.60m -0.037
2023-03-03 Cogdal HS Girls Invitational pv 1.95m -0.045
2023-02-28 Sycamore Girls Quad #2 pv 1.50m -0.016
2023-02-28 Sycamore Girls Quad #2 200m 32.64 11th · 2nd on team -0.016
2023-02-18 Hononegah Girls Indoor Meet #1 pv NH -0.047
2023-02-18 Hononegah Girls Indoor Meet #1 200mh 37.43 18th · 2nd on team -0.047 PR SR
2023-02-11 Rockford Auburn Girls Invitational 200m 31.95 30th · 2nd on team -0.046 PR SR

2022 TF

Loves Park Harlem (IL) · Grade 8

Date Meet Event Result Place Rating Difficulty PR/SR Flags
2022-05-14 IESA 4A - Sectional 7 @ Pretzel Stadium 100mh 22.8 16th · 2nd on team -0.040 PR SR
2022-04-25 Roscoe vs Harlem 100m 16.64 10th · 6th on team -0.018
2022-04-25 Roscoe vs Harlem 200m 37.44 7th · 5th on team -0.018
2022-04-21 SMMS - Harlem MS 200m 36.37 6th · 5th on team -0.016 PR SR
2022-04-21 SMMS - Harlem MS 100m 15.67 8th · 6th on team -0.016
2022-04-19 Freeport, Harlem, Rockford Christian Life and Rockford Lutheran 100m 15.64 10th · 5th on team -0.026 PR SR
2022-04-19 Freeport, Harlem, Rockford Christian Life and Rockford Lutheran 200m 37.24 12th · 4th on team -0.026 PR SR
2022-04-19 Freeport, Harlem, Rockford Christian Life and Rockford Lutheran 400m 1:24.44 7th · 4th on team -0.026 PR SR