U20 Frauen
| 100 m | Denise Uphoff | 11.79 | 2018 | Langenthal |
| 200 m | Denise Uphoff | 24.3 | 2018 | Langenthal |
| 400 m | Valentina Rosamilia | 55.8 | 2022 | Genève |
| 800 m | Valentina Rosamilia | 2:01.91 | 2021 | Bellinzona |
| 1500 m | Valentina Rosamilia | 4:19.31 | 2021 | Nottwil |
| 3000 m | Giulia Fulginiti | 9:50.42 | 2024 | Winterthur |
| 5000 m | Giulia Fulginiti | 17:21.35 | 2024 | Uster |
| 100 m Hürden 84.0 | Martina Stoop | 13.70 | 1992 | |
| 400 m Hürden 76.2 | Majella Hauri | 63.12 | 2013 | Lausanne |
| 3000 m Steeple | Loriana De Martin | 12:41.92 | 2014 | Castellon |
| Hoch | Eliane Meneghini | 1.80 | 1976 | |
| Stab | Leonie Moll | 3.7 | 2017 | Frauenkappelen |
| Leonie Moll | 3.70 | 2017 | Frauenkappelen | |
| Weit | Anna Archidiacono | 5.83i | 2018 | Magglingen |
| Drei | Jasmine Lisanga | 12.08 | 2007 | |
| Kugel 4.00 kg | Monika Iten | 12.81 | 1973 | |
| Diskus 1.00 kg | Monika Iten | 44.26 | 1973 | |
| Hammer 4.00 kg | Tiana Hofer | 38.24 | 2022 | Genève |
| Speer 600 gr | Jennifer Buckel | 45.67 | 2019 | Winterthur |
| Siebenkampf | Martina Stoop | 4975 | 1991 | |
| 4x100 m | Gloor/Brantschen/ Fiore/Uphoff | 46.78 | 2018 | |
| 4x400 m | Lapaire/Hirt/ Sommer/Stoop | 3:55.90 | 1975 | |
| 3x1000 m | Rosamilia N./Rosamilia V./ Vombach | 9:23.56 | 2018 | |
| Olympische | Ummel/Petrò/ Van den Berg/Huber | 3:50.78 | 2015 |
U20 Männer
| 100 m | Philip Bjørnå Berntsen | 10.50 | 2008 | Luzern |
| 200 m | Daniel Gehri | 21.5m | 1968 | |
| 400 m | David Eichenberger | 47.32 | 1996 | |
| 800 m | Robin Gloor | 1:50.25 | 2024 | Pfungstadt GER |
| 1500 m | René Wernli | 3:51.50 | 1976 | |
| 3000 m | Kurt Hauser | 8:27.80 | 1975 | |
| 5000 m | Oliver Wirz | 14:25.14 | 1992 | |
| 110 m Hürden 99.1 | Andy Dätwyler | 14.69 | 2005 | |
| 400 m Hürden 91.4 | Martin Leiser | 52.83 | 1997 | |
| 3000 m Steeple | Oliver Wirz | 9:14.18 | 1992 | |
| Hoch | Fabian Anliker | 2.12 | 1994 | |
| Stab | Timo Zingg | 4.9 | 2024 | Winterthur |
| Weit | Urs Fehlmann | 7.49 | 1980 | |
| Drei | Lucas Weber | 14.76 | 2000 | |
| Kugel 6.00 kg | Urs Hasler | 17.16 | 2002 | |
| Diskus 1.75 kg | Lukas Baroke | 47.23 | 2020 | Frauenfeld |
| Hammer 6.00 kg | Lukas Baroke | 61.52 | 2019 | Winterthur |
| Speer 800 gr | Lukas Annaheim | 64.07 | 2000 | |
| Zehnkampf M | Dominique Stark | 7112 | 2013 | Hochdorf |
| 4x100 m | Brunner/Majdik/ Weber/Bartholdi | 42.13 | 2000 | |
| 4x400 m | Vogt/Weber/ Bryner/Widmer | 3:22.16 | 2000 | |
| 3x1000 m | Lehmann/Müller/ Pfändler | 7:39.20 | 1978 | |
| Olympische | Pfändler/Egli/ Widmer/Seiler | 3:21.69 | 1980 |
Indoor U20 Frauen
| 50 m | Majella Hauri | 6.77 | 2013 | Wettingen |
| 60 m | Michelle Gloor | 7.51 | 2018 | St. Gallen |
| 200 m | Leana Stadler | 25.08 | 2024 | Magglingen /Macolin |
| 400 m | Valentina Rosamilia | 56.49 | 2020 | Magglingen |
| 800 m | Valentina Rosamilia | 2:04.19 | 2022 | Metz FRA |
| 1000 m | Tiziana Rosamilia | 2:49.44 | 2024 | Magglingen /Macolin |
| 3000 m | ||||
| 50 m Hürden 84.0 | Sandra Baumann | 8.33 | 2006 | |
| 60 m Hürden 84.0 | Majella Hauri | 8.62 | 2014 | Magglingen |
| Hoch | Nathalie Lauber | 1.75 | 2012 | Magglingen |
| Stab | Leonie Moll | 3.6 | 2019 | Magglingen |
| Weit | Anna Archidiacono | 5.83 | 2018 | Magglingen |
| Drei | May-Madeleine Gysi | 11.54 | 2015 | Magglingen |
| Kugel 4.00 kg | Linda Achtel | 11.61 | 2010 | Magglingen |
| Fünfkampf W / W Indoor | Martina Stoop | 3662 | 1992 |
Indoor U20 Männer
| 50 m | Michele Asquini | 6.13 | 2004 | |
| 60 m | Michele Asquini | 7.07 | 2004 | |
| 200 m | Pascal Müller | 22.52 | 2007 | Magglingen |
| 400 m | David Eichenberger | 48.55 | 1996 | |
| 800 m | Robin Gloor | 1:55.88 | 2024 | St. Gallen |
| 1000 m | Robin Gloor | 2:30.46 | 2024 | Magglingen /Macolin |
| 1500 m | ||||
| 3000 m | ||||
| 50 m Hürden 99.1 | Oliver Meister | 7.72 | 2004 | |
| 60 m Hürden 99.1 | Dominique Stark | 8.53 | 2014 | Magglingen |
| Hoch | Fabian Anliker | 2.09 | 1994 | |
| Stab | Timo Zingg | 4.5 | 2024 | Magglingen /Macolin |
| Weit | Krisztian Majdik | 7.01 | 2000 | |
| Drei | Dominique Stark | 11.41 | 2010 | Wettingen |
| Kugel 6.00 kg | Lukas Baroke | 15.43 | 2020 | Magglingen |
| Siebenkampf M Indoor | Oliver Meister | 4757 | 2004 |