Boys Records
| Event | Mark | Athlete | Year |
|---|---|---|---|
| B100M | 10.70 | Lucas Fowler - Harlowton | 1998 |
| B200M | 21.97 | Kelly Murnion-Garfield County | 2016 |
| B400M | 48.36 | Kelly Murnion-Garfield County | 2016 |
| B800M | 1:55.10 | Dom Duelli-Absarokee | 1988 |
| B1600M | 4:27.50 | Dana Goes Ahead-Plenty Coups | 1981 |
| B3200M | 9:46.88 | Lane Lantis-Terry | 2013 |
| B110MH | 14.20 | Lucas Fowler - Harlowton | 1998 |
| B300MH | 38.50 | Houghton Richards -Terry | 1998 |
| B4x100 | 44.00 | Harlowton | 1998 |
| B4x100 | 44.00 | Park City | 2000 |
| B4x400 | 3:29.83 | Harlowton | 2009 |
| BLJ | 22'1.5" | Greg Stene-Columbus | 1977 |
| BTJ | 45'0.25" | Ty Stanton- Garfield County | 2016 |
| BHJ | 6'5" | Richard Beyl-Absarokee | 1991 |
| BPV | 14'0" | Dennis Sommerfield -Bridger | 1988 |
| BSP | 57'7" | J.C. Murray-Jordan | 1991 |
| BDISC | 167'4" | Josh Henigman - Bridger | 2001 |
| BJAV | 179'2" | Carson Durr-Roberts | 2002 |
Girls Records
| Event | Mark | Athlete | Year | |
|---|---|---|---|---|
| G100M | 12.40 | Rachel Carter-Absarokee | 1997 | |
| G200M | 25.80 | Cody Halsey-Harlowton | 2002 | |
| G400M | 59.20 | Cody Halsey-Harlowton | 2001 | |
| G800M | 2:22.41 | Mackenzie O'Dore-Joliet | 2010 | |
| G1600M | 5:23.70 | Jamie Tuell- Bridger | 1991 | |
| G3200M | 11:25.90 | Marni Ryti -Terry | 1984 | |
| G100MH | 15.10 | Erin Jones-Harlowton | 1999 | |
| G300MH | 44.00 | Cathy Schwend -Bridger | 1990 | |
| G4x100 | 51.30 | Harlowton | 2000 | |
| G4x400 | 4:15.90 | Harlowton | 2000 | |
| GLJ | 17'3.25" | Shanna Olson-Hysham | 1995 | |
| GTJ | 37'10" | Kelsey Kirkpatrick - Ryegate | 2003 | |
| GHJ | 5'6" | Tessie Bertolino-Roberts | 1989 | |
| GPV | 11'3" | Laura Daniel - Absorokees | 1997 | |
| GSP | 45'0.75" | Kylee Zent - Bridger | 2004 | |
| GDISC | 135'6" | Kylee Zent - Bridger | 2004 | |
| GJAV | 132'9" | Lacey Haughian-Terry | 2004 |