Silja YliHietanen
| Nationality | |
| Year of birth | 2003 | 
| IOF ID | 34106 | 
| Sex | Female | 
| Discipline | MTBO | 
MTBO results
| Date | Championship/Cup/WRE | Organising federation | Format | Race Type/Class | Plac | Time | Diff | Km time | |
|---|---|---|---|---|---|---|---|---|---|
| 20/09/2025 | U23 World Championships |  | Long | Final | 2 | 1:56:43 | +11:20 | 6:14 |   | 
| 19/09/2025 | U23 World Championships |  | Sprint | Final | 1 | 22:36 | +1:15 | 4:07 |   | 
| 13/07/2025 | Estonian and Baltic MTBO championships in long distance |  | Long | W21 | 1 | 1:58:56 | 4:27 |  | |
| 11/07/2025 | Estonian and Baltic MTBO championships in sprint |  | Sprint | W21 | 1 | 23:16 | 5:03 |  | |
| 17/05/2025 | World Cup |  | Sprint | Final | 21 | 27:38 | 4:03 |   | |
| 16/05/2025 | World Cup |  | Middle | Final | 34 | 1:00:06 | 4:53 |   | |
| 15/05/2025 | World Cup |  | Masstart | Final | 18 | 1:38:42 | 3:58 |   | |
| 05/07/2024 | U23 World Championships |  | Sprint | Final | 5 | 20:42 | +2:18 | 4:03 |   | 
| 01/06/2024 | World Cup |  | Middle | Final | 24 | 50:43 | +9:29 | 5:03 |   | 
| 31/05/2024 | World Cup |  | Long | Final | 24 | 1:54:40 | +20:26 | 4:20 |   | 
| 30/05/2024 | World Cup |  | Sprint | Final | 12 | 27:42 | +3:30 | 4:41 |   | 
| 26/08/2023 | Relay |  | Relay | Women 20 | 1 1 | 39:38 2:03:43 |  | ||
| 25/08/2023 | Mass start |  | Masstart | Women 20 | 3 | 1:13:50 | +0:58 |  | |
| 23/08/2023 | Middle |  | Middle | Women 20 | 6 | 56:03 | +2:50 | 4:24 |  | 
| 22/08/2023 | Long |  | Long | Women 20 | 6 | 1:30:37 | +9:39 | 4:09 |  | 
| 20/08/2023 | Sprint |  | Sprint | Women 20 | mispunched |  | |||
| 29/04/2023 | Relay |  | Relay | W20 | 2 | 42:06 2:02:36 | +1:30 |  | |
| 28/04/2023 | Sprint |  | Sprint | W20 | 6 | 27:13 | +2:12 | 4:05 |  | 
| 27/04/2023 | Long |  | Long | W20 | 5 | 1:32:59 | +14:08 | 4:13 |  | 
| 26/04/2023 | Middle |  | Middle | W20 | 6 | 51:00 | +5:56 | 3:42 |  | 
| 20/07/2022 | Mass start |  | Masstart | Women 20 | 6 | 55:26 | +4:19 | 5:07 |  | 
| 19/07/2022 | Sprint |  | Sprint | Women 20 | 2 | 19:29 | +1:14 | 3:59 |  | 
| 17/07/2022 | Long |  | Long | Women 20 | 4 | 1:22:31 | +6:07 | 5:07 |  | 
| 16/07/2022 | Relay |  | Relay | Women 20 | 3 4 | 40:40 1:58:59 | +6:54 +10:00 |  | |
| 15/07/2022 | Middle |  | Middle | Women 20 | 2 | 46:00 | +2:36 | 4:48 |  | 
| 22/05/2022 | Relay |  | Relay | Women 20 | 2 1 | 34:19 1:40:47 |  | ||
| 21/05/2022 | Long |  | Long | Women 20 | 3 | 1:26:36 | 4:50 |  | |
| 20/05/2022 | Sprint |  | Sprint | Women 20 | 5 | 21:46 | 4:18 |  | |
| 19/05/2022 | Middle |  | Middle | Women 20 | 5 | 40:17 | 4:20 |  | |
| 10/10/2021 | Relay |  | Relay | W20 (Official) | 1 | 32:57 1:35:00 |  | ||
| 10/10/2021 | Relay |  | Relay | W20 (Full) | 1 | 32:57 1:35:00 |  | ||
| 09/10/2021 | Long |  | Long | W20 | 10 | 1:03:22 | +9:10 | 3:36 |  | 
| 08/10/2021 | Middle |  | Middle | W20 | 6 | 37:15 | +3:21 | 3:08 |  | 
| 07/10/2021 | Sprint |  | Sprint | W20 | 10 | 16:40 | +0:48 | 2:40 |  | 
| 17/06/2021 | Relay |  | Relay | Women 20 | 1 2 | 29:08 1:40:20 | +1:59 |  | |
| 17/06/2021 | Relay |  | Relay | WOMEN20 Championship | 2 | 29:08 1:40:20 | +1:59 |  | |
| 16/06/2021 | Long |  | Long | Women 20 | 11 | 1:25:00 | +9:31 | 3:46 |  | 
| 14/06/2021 | Middle |  | Middle | Women 20 | 7 | 44:40 | +4:02 | 3:29 |  | 
| 13/06/2021 | Sprint |  | Sprint | Women 20 | 5 | 19:51 | +1:44 | 3:21 |  | 
| 12/06/2021 | Mass start |  | Long | Women 20 | 3 | 1:04:29 | +3:49 | 3:07 |  | 
| 13/09/2020 | Long |  | Women 20 |  | |||||
| 11/09/2020 | Sprint |  | Women 20 |  | |||||
| 10/09/2020 | Mass start |  | Women 20 |  | |||||
| 15/05/2020 | Long |  | W17 |  | |||||
| 14/05/2020 | Middle |  | W17 |  | |||||
| 12/05/2020 | Sprint |  | W17 |  | |||||
| 06/10/2019 | Sprint |  | Sprint | Women 17 | 5 | 17:35 | +1:47 | 4:44 |  | 
| 04/10/2019 | Long |  | Long | Women 17 | 8 | 1:06:28 | +7:19 | 5:07 |  | 
| 03/10/2019 | Middle |  | Middle | Women 17 | 5 | 33:49 | +2:44 | 3:22 |  | 
| 12/08/2018 | Sprint |  | W17 |  | |||||
| 11/08/2018 | Long |  | W17 |  | |||||
| 08/08/2018 | Middle |  | W17 |  | |||||
| 01/07/2018 | Mixed Relay |  | Relay | Mixed Relay | not competing |  | |||
| 30/06/2018 | Middle |  | Middle | W20 | 22 | 1:07:53 | +19:40 | 5:01 |  | 
| 29/06/2018 | Long |  | Long | W20 | 17 | 2:19:26 | +40:03 | 7:58 |  | 
| 28/06/2018 | Sprint |  | Sprint | W20 | 17 | 28:39 | +4:08 | 4:12 |  | 
 
                     
                     
                     
                     
                    