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Sebastian Kostemaj
Johnsburg · Class of 2028
21 resultsCross Country2025–2026
WrappedYour 2026 Cross Country season, WrappedRaces, wins, PRs and rankings as cards for your Instagram StoryShare it →
| Event / course | Mark | Meet | Date |
|---|---|---|---|
| 2.15 Miles · Veteran Acres ParkRich Eschman XC Invitational 2025 · Sep 6 | 15:56.58 | Rich Eschman XC Invitational 2025 | September 6, 2025 |
| 2.95 Miles · Shady Oaks Country ClubAmboy XC Invitational · Oct 12 | 24:04.7 | Amboy XC Invitational | October 12, 2026 |
| 2.95 Miles · Shady Oaks Country ClubAmboy Columbus Day XC Invitational · Oct 13 | 22:16.50 | Amboy Columbus Day XC Invitational | October 13, 2025 |
| 3 Miles · Bulldog Athletic ComplexJT Invite · Sep 26 | 21:52.45 | JT Invite | September 26, 2026 |
| 3 Miles · Detweiller - IHSA State CourseIHSA State XC Championships · Nov 7 | 20:30.08 | IHSA State XC Championships | November 7, 2026 |
| 3 Miles · Detweiller ParkIHSA Class 1A State XC Championships · Nov 8 | 20:38.12 | IHSA Class 1A State XC Championships | November 8, 2025 |
| 3 Miles · Emricson Park2025 McHenry County Invite · Aug 30 | 24:11.94 | 2025 McHenry County Invite | August 30, 2025 |
| 3 Miles · Indian Oaks ParkKRC Championships · Oct 17 | 20:37.26 | KRC Championships | October 17, 2026 |
| 3 Miles · Kankakee Community College2026 IHSA Class 1A XC Sectional - #1 Kankakee (McNamara) · Oct 31 | 21:01.80 | 2026 IHSA Class 1A XC Sectional - #1 Kankakee (McNamara) | October 31, 2026 |
| 3 Miles · McHenry Township Recreation Center2026 McHenry County Invite · Aug 29 | 23:11.96 | 2026 McHenry County Invite | August 29, 2026 |
| 3 Miles · Tim Osmond Sports Complex52nd Annual Patricia Harland Cross Country Invitational · Oct 3 | 21:41.70 | 52nd Annual Patricia Harland Cross Country Invitational | October 3, 2026 |
| 5,000 Meters · Lisle High SchoolIHSA Class 1A XC Regional - #1C Lisle (Sr.) · Oct 25 | 22:39.26 | IHSA Class 1A XC Regional - #1C Lisle (Sr.) | October 25, 2025 |
| 5,000 Meters · McHenry Township Recreation Center2025 KRC XC Championships · Oct 18 | 24:26.81 | 2025 KRC XC Championships | October 18, 2025 |
| 5,000 Meters · Veteran Acres ParkRich Eschman XC Invitational · Sep 5 | 25:31.09 | Rich Eschman XC Invitational | September 5, 2026 |
Best marks from the meets included here. Cross Country bests are grouped by course and distance.
| Date | Meet | Event | Pl | Mark | Gr |
|---|---|---|---|---|---|
| Nov 7 | IHSA State XC ChampionshipsNov 7 · 3 Miles Class 1A Varsity · Place 255 · Johnsburg | 3 Miles Class 1A Varsity | 255 | 20:30.08 PB | 11 |
| Oct 31 | 2026 IHSA Class 1A XC Sectional - #1 Kankakee (McNamara)Oct 31 · 3 Miles Varsity · Place 115 · Johnsburg | 3 Miles Varsity | 115 | 21:01.80 PB | 11 |
| Oct 24 | 2026 IHSA Class 1A XC Regional - #1C WestmontOct 24 · 3 Miles Varsity · Place 57 · Johnsburg | 3 Miles Varsity | 57 | 20:56.00 | 11 |
| Oct 17 | KRC ChampionshipsOct 17 · 3 Miles Varsity · Place 40 · Johnsburg | 3 Miles Varsity | 40 | 20:37.26 PB | 11 |
| Oct 12 | Amboy XC InvitationalOct 12 · 2.95 Miles Varsity · Place 138 · Johnsburg | 2.95 Miles Varsity | 138 | 24:04.7 PB | 11 |
| Oct 3 | 52nd Annual Patricia Harland Cross Country InvitationalOct 3 · 3 Miles Varsity · Place 100 · Johnsburg | 3 Miles Varsity | 100 | 21:41.70 PB | 11 |
| Sep 26 | JT InviteSep 26 · 3 Miles Varsity · Place 79 · Johnsburg | 3 Miles Varsity | 79 | 21:52.45 PB | 11 |
| Sep 12 | First to the Finish InvitationalSep 12 · 3 Miles 3 Miles-Varsity-1A · Place 612 · Johnsburg | 3 Miles 3 Miles-Varsity-1A | 612 | 22:03.0 | 11 |
| Sep 8 | KRC Preview Meet at Indians Oak Park, MarengoSep 8 · 3 Miles Varsity · Place 51 · Johnsburg | 3 Miles Varsity | 51 | 22:02.15 | 11 |
| Sep 5 | Rich Eschman XC InvitationalSep 5 · 5,000 Meters Varsity · Place 153 · Johnsburg | 5,000 Meters Varsity | 153 | 25:31.09 PB | 11 |
| Aug 29 | 2026 McHenry County InviteAug 29 · 3 Miles Varsity · Place 72 · Johnsburg | 3 Miles Varsity | 72 | 23:11.96 PB | 11 |
| Date | Meet | Event | Pl | Mark | Gr |
|---|---|---|---|---|---|
| Nov 8 | IHSA Class 1A State XC ChampionshipsNov 8 · 3 Miles 1A Varsity · Place 257 · Johnsburg | 3 Miles 1A Varsity | 257 | 20:38.12 PB | 10 |
| Nov 1 | IHSA Class 1A XC Sectional - #1 Lisle (Sr.)Nov 1 · 5,000 Meters Varsity · Place 119 · Johnsburg | 5,000 Meters Varsity | 119 | 23:02.17 | 10 |
| Oct 25 | IHSA Class 1A XC Regional - #1C Lisle (Sr.)Oct 25 · 5,000 Meters Varsity · Place 51 · Johnsburg | 5,000 Meters Varsity | 51 | 22:39.26 PB | 10 |
| Oct 18 | 2025 KRC XC ChampionshipsOct 18 · 5,000 Meters Varsity · Place 48 · Johnsburg | 5,000 Meters Varsity | 48 | 24:26.81 PB | 10 |
| Oct 13 | Amboy Columbus Day XC Invitational Oct 13 · 2.95 Miles Varsity · Place 135 · Johnsburg | 2.95 Miles Varsity | 135 | 22:16.50 PB | 10 |
| Oct 4 | 51th Annual Patricia Harland Cross Country InvitationalOct 4 · 3 Miles Junior Varsity · Place 39 · Johnsburg | 3 Miles Junior Varsity | 39 | 21:50.98 | 10 |
| Sep 27 | JT InviteSep 27 · 3 Miles Frosh/Soph · Place 77 · Johnsburg | 3 Miles Frosh/Soph | 77 | 22:15.82 | 10 |
| Sep 13 | First to the Finish InvitationalSep 13 · 3 Miles Varsity 1A · Place 606 · Johnsburg | 3 Miles Varsity 1A | 606 | 22:59.70 | 10 |
| Sep 6 | Rich Eschman XC Invitational 2025Sep 6 · 2.15 Miles Frosh/Soph · Place 90 · Johnsburg | 2.15 Miles Frosh/Soph | 90 | 15:56.58 PB | 10 |
| Aug 30 | 2025 McHenry County Invite Aug 30 · 3 Miles Junior Varsity · Place 84 · Johnsburg | 3 Miles Junior Varsity | 84 | 24:11.94 PB | 10 |