| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| W | Lada VONDROVÁ | 06/09/1999 | 400 Metres | Heats | 3 | 51.94 |
| M | Matěj KRSEK | 13/05/2000 | 400 Metres | Heats | 1 | 46.07 |
| M | Jakub DUDYCHA | 05/09/2005 | 800 Metres | Heats | 4 | 1:47.81 |
| M | Filip SASÍNEK | 08/01/1996 | 1500 Metres | Heats | 4 | 3:43.82 |
| M | Tomáš STANĚK | 13/06/1991 | Shot Put | Final | 11 | 20.31 |
| W | Lada VONDROVÁ | 06/09/1999 | 400 Metres | Semi-Final | 6 | 52.48 |
| M | Matěj KRSEK | 13/05/2000 | 400 Metres | Semi-Final | 3 | 46.48 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| M | Radek JUŠKA | 08/03/1993 | Long Jump | Final | 14 | 7.68 |
| M | Štěpán SCHUBERT | 21/07/2003 | 60 Metres Hurdles | Heats | 6 | 7.88 |
| M | Vilém STRÁSKÝ | 03/07/1999 | 60 Metres | Heptathlon | 6 | 6.95 |
| W | Karolína MAŇASOVÁ | 26/11/2003 | 60 Metres | Heats | 4 | 7.27 |
| M | Ondřej KOPECKÝ | 16/05/1998 | Long Jump | Heptathlon | 8 | 7.24 |
| M | Ondřej KOPECKÝ | 16/05/1998 | Shot Put | Heptathlon | 9 | 13.79 |
| W | Amálie ŠVÁBÍKOVÁ | 22/11/1999 | Pole Vault | Final | 6 | 4.65 |
| M | Ondřej KOPECKÝ | 16/05/1998 | High Jump | Heptathlon | 10 | 1.86 |
| M | Matěj KRSEK | 13/05/2000 | 400 Metres | Final | 6 | 46.47 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| M | Ondřej KOPECKÝ | 16/05/1998 | 60 Metres Hurdles | Heptathlon | 4 | 8.14 |
| W | Helena JIRANOVÁ | 05/03/1995 | 60 Metres Hurdles | Heats | 6 | 8.19 |
| M | Czech Republic | 4x400 Metres Relay | Heats | DNF | ||
| M | Ondřej KOPECKÝ | 16/05/1998 | Pole Vault | Heptathlon | 7 | 4.90 |
| W | Czech Republic | 4x400 Metres Relay | Heats | 3 | 3:28.57 | |
| M | Jan ŠTEFELA | 20/04/2001 | High Jump | Final | 5 | 2.24 |
| M | Vilém STRÁSKÝ | 03/07/1999 | 1000 Metres | Heptathlon | 3 | 2:39.56 |