| Mamiko Oshima-Berger | |
| Birth Name: | Mamiko Oshima |
| Nationality: | Northern Mariana Islands |
| Event: | Marathon |
| Pb: | 3:09:00 (Saipan Marathon, 2012) |
Mamiko Oshima-Berger (born 1989), also known professionally as Mamiko Oshima, is a marathon runner from the Northern Mariana Islands.[1]
Oshima-Berger has placed first in the Saipan Marathon in 2016, 2015, 2014, 2012, 2009, and 2008. In 2010, she placed second.[2]
At the 2008 Oceania Athletics Championships she placed third in the half marathon, with a time of 1:42:26.67.[3]
At the 2010 Micronesian Games she won gold in the 5000 metres and 10km road race.[4]
In 2011, she was the only athlete from the Pacific islands to compete in the Oceania Marathon and Half Marathon Championships, finishing the event in 3:53.30 and come 183.[5]
In 2014, Oshima-Berger competed in the Emerald Bay Marathon (California), completing the event in 4:40:19.7, placing her 8th in her age range, and 15th overall. The same year she competed in the California-Nevada Marathon, with a time of 4:01:12, and came first in her division and second overall.[6]
Oshima-Berger has competed and set records in several events in the Northern Mariana Islands. As of 2010, she held the record for the Annual POWERade Banzai Memorial Half Marathon & Fun Run and broke the record at the 26th Annual Mt. Tapochao Thanksgiving Day Turkey Trot Fun Run. In December 2010, Oshima-Berger, with Keum Bae Jin, was recognised by the Northern Marianas Amateur Sports Association as Athletes of the Month, and were nominees for Athlete of the Year.[7]
Oshima-Berger's best recorded time for a marathon was 3:09:00 at the Saipan Marathon. She currently holds the women's national record in the marathon for the Northern Mariana Islands as compiled by the International Association of Athletics Federations.