| Description: | Memorise binary digits. |
| Memorisation: | 30 minutes |
| Recall: | 1 hour |
Rank | Competitor | Score | Championship |
| 1 | Tenuun TAMIR | 6390 digits | WMC 2022 |
| 2 | Munkhshur NARMANDAKH | 5850 digits | WMC 2021 |
| 5 | Enkhshur NARMANDKH | 4983 digits | WMC 2021 |
| 8 | Nandin-Uchral NYAMKHUU | 4245 digits | WMC 2022 |
| 18 | Uyanga LUVSAN-YONDON | 3826 digits | WMC 2022 |
| 19 | Khuslen DUURENBAYAR | 3810 digits | WMC 2022 |
| 20 | Undral ERDENEBILEG | 3630 digits | WMC 2022 |
| 22 | Azjargal LKHAGVASUREN | 3525 digits | WMC 2022 |
| 23 | Emujin TSENGELBAYAR | 3228 digits | WMC 2021 |
| 39 | Munkhtsolmon UDVAL | 2457 digits | WMC 2021 |
| 73 | Khishig-Erdene ERDENETSOGT | 2100 digits | WMC 2022 |
| 81 | Nomin NOROVPEL | 2040 digits | WMC 2021 |
| 138 | Enkhluun BATKHISHIG | 1500 digits | WMC 2021 |