Tarawera Ultramarathon is a trail running event which includes a 21 km, 50 km, 102 km and a 100-mile ultramarathon trail race, with the inaugural event held in 2009, it is part of the Ultra-Trail World Tour. It is held annually in February and takes place in Rotorua, New Zealand. Awards are given to top men and women finishers in each category.
The race was created by Paul Charteris.
The inaugural race was over an 85 km distance and was won by New Zealanders, Kerry Suter and Jean Beaumont. Kerry backed up his 2009 win with a further win in 2010, this time over a new distance, 100 km. In 2017 the 100 km race was extended by 2 km to a complete distance of 102 km. In 2018 the inaugural 100 mile race was added to the event.
The 2023 edition is hosted as part of the UTMB World Series.
The 102 km course ran from Rotorua to Kawerau from 2009 to 2017. The old course records were set in 2017 by Americans Camille Herron (8:56:00) and Jim Walmsley (7:23:32). The course changed direction in 2018, starting in Kawerau in and finishing in Rotorua. In 2018, 100 miles was added to the events. The courses have had deviations over the years due to inclement weather. The records for the current course are held by New Zealanders Ruth Croft and Daniel Jones, both set in 2025.