ITRA for both 50km and 30km link
https://itra.run/Races/RaceResults/Ultra.Trail.Singapore50km/2023/83182
UTMB 2023 – 50km link
https://utmb.world/utmb-index/races/37332.ultratrailsingapore-utsg-ultratrailsingapore-utsg-50km.2023
UTMB – 30km link
https://utmb.world/utmb-index/races/37330.ultratrailsingapore-utsg-ultratrailsingapore-utsg-30km.2023
UTMB 2022 – 100km link
https://utmb.world/utmb-index/races/35662.ultratrailsingapore-utsg-ultratrailsingapore-utsg-.2022
ITRA 2022 – 100km link
https://itra.run/Races/RaceDetails/Ultra.Trail.Singapore..UTSG..Ultra.Trail.Singapore..UTSG./2022/79264