The matches won with the lowest chance of winning, week by week.
The win chance is from the ratings right before the match. Only matches between settled players count: every player has played at least 10 matches and has a rating certain to within ±250 in singles or ±180 in doubles, so a junior improving fast beating a favourite isn't counted as an upset. Walkovers and draws are left out.
4%chance of winning
Askøy
Vestre Akerbeat
Haugerud21-16, 13-21, 22-20
Mixed doubles · Sandefjord RT U19* (U19 A) · 2 Mar 2019 · head to head
5%chance of winning
Kristiansandbeat
Kristiansand21-19, 17-21, 21-10
Women's singles · Kristiansand Pizzabaker-cup / KBK-cup 2 (U17 B) · 2 Mar 2019 · head to head
6%chance of winning
beat
13-21, 25-23, 23-21
Women's singles · Tana Vintergnisten 2019 (SEN B) · 2 Mar 2019 · head to head
6%chance of winning
BærumVestre Akerbeat
Vestre AkerVestre Aker22-20, 21-14
Mixed doubles · Vestre Aker Fjærfest (SEN B) · 2 Mar 2019
7%chance of winning
Grongbeat
Trondheim21-16, 21-17
Men's singles · Grong Tommy Gåsbakks minneturnering/Namdal Open 2019 (SEN B) · 1 Mar 2019 · head to head
7%chance of winning
beat
16-21, 21-16, 21-11
Men's singles · Tana Vintergnisten 2019 (SEN A) · 2 Mar 2019 · head to head
8%chance of winning
beat
Vestre Aker19-21, 21-13, 21-19
Women's singles · Vestre Aker Fjærfest (U13 A) · 2 Mar 2019 · head to head
8%chance of winning
Herøybeat
Herøy21-15, 21-17
Women's singles · Grong Tommy Gåsbakks minneturnering/Namdal Open 2019 (U15 A) · 1 Mar 2019 · head to head
8%chance of winning
Herøybeat
21-17, 21-19
Women's singles · Grong Tommy Gåsbakks minneturnering/Namdal Open 2019 (U15 A) · 1 Mar 2019 · head to head
10%chance of winning
Gullvikmoenbeat
23-21, 19-21, 21-10
Women's singles · Grong Tommy Gåsbakks minneturnering/Namdal Open 2019 (SEN B) · 1 Mar 2019 · head to head
| Week | Upset | Chance |
|---|---|---|
| 31 Dec |
| 7% |
| 24 Dec |  Rolf Almås+27.4 beat  Lars Lauvik−24.221-16, 22-20 · Men's singles · Bergen Julecupen 2018 (SEN D) | 4% |
| 3 Dec | Jonas J Grande+97.0 beat Martin Hyllestad−48.421-14, 18-21, 21-10 · Men's singles · Trondheim TBK Julecup 2018 (SEN A) | 4% |
| 26 Nov | Advait Mital+36.7 beat  Ole Andreas Hansen−20.724-22, 7-21, 21-19 · Men's singles · 1. Div Oslofjorden 18/19 Grunnspill (3. HS) | 5% |
| 19 Nov | Marlene Wåland+3.6 /  Jesper Kristensen+3.1 beat Jonas Østhassel−2.4 / Emma Wåland−3.223-21, 16-21, 22-20 · Mixed doubles · Moss RT 15* + NRSenior* (SEN E) | 8% |
| 12 Nov |  Mathias Kjellesvik Skjørholm+58.4 beat Benjamin Wang−50.121-16, 21-23, 21-19 · Men's singles · Grong RT 17* (U17 A) | 3% |
| 5 Nov | Kjetil Ragde+17.7 / Gert Buhl+21.6 beat Børge Mæland−23.2 /  Stian Ekroll Glenne−9.721-17, 21-18 · Men's doubles · Sotra Vestlandsmesterskapet 2018 (SEN C) | 5% |
| 29 Oct | Camilla Skrunes Sundt+53.7 / Sofie Christensen+52.3 beat Signe Lenning−39.4 / Nila Lorvik−55.121-17, 21-12 · Women's doubles · Haugerud Haugerud ranking RT 13 + 19* (U13 A) | 2% |
| 22 Oct | Thea Vatne+15.1 beat  Britt Grindland−8.121-18, 13-21, 21-15 · Women's singles · 1.div. Sør/Vest Pulje 1 (1. DS) | 3% |
| 15 Oct | Børge Håland+129.0 beat  Tore Hansen−59.021-12, 21-16 · Men's singles · Nesna Nesnasmashen 2018 (SEN B) | 1% |
| 8 Oct | Martine E. Voldstad+16.9 beat  Maria Jansson−11.716-21, 21-15, 23-21 · Women's singles · Slagen Slagentreffen 2018. (SEN B) | 3% |
| 1 Oct | Linnea Nordnes Prestø+5.8 beat Signe Lenning−5.521-18, 17-21, 21-19 · Women's singles · Herøy Kruttcup 2018 (U13 A) | 4% |
| 24 Sep | Carl Christian Hem+30.0 beat Ikmal Hussain Jaafar−29.821-14, 22-20 · Men's singles · Sandefjord SaBK Jubileumsturnering (SEN E) | 6% |
| 17 Sep | Heine Lam Nybakk+118.0 beat Marius Sandvær−99.621-18, 21-9 · Men's singles · Djerv RT 13 (U13 A) | 9% |
| 10 Sep | Lars Torkelsen+67.3 beat Manas Dubey−53.621-16, 21-18 · Men's singles · Sola Solarekrutten 2018 (U17 A) | 9% |
| 3 Sep | Elias Haugen+21.2 / Oscar Haugen+15.3 beat Asgeir Våbenø Berg−18.9 / William R. Barø−13.821-18, 21-17 · Men's doubles · Verdal Øradobbelen (U15 A) | 13% |
| 27 Aug | Tyra Friisenfeldt+137.3 / Mette Skjævesland Pedersen+138.3 beat Aimee Hong−80.2 / Delia Murtazalieva−87.221-16, 21-12 · Women's doubles · Bergen RT 15 + 19 (U19 A) | 2% |
| 23 Jul | Stian Berg+14.5 / Kenneth Haagenstad+16.4 beat  Sven Arild Strøm−10.4 / Oddvar Mikalsen−11.224-22, 13-21, 21-19 · Men's doubles · Kolvereid Knut Liland Køpp 2018 (SEN C) | <1% |
| 11 Jun | Daniel Bjørklund+123.8 beat Robert Hoeggen−80.721-13, 21-18 · Men's singles · Orkanger Midtsommernatt 2018 - i Vinstrahallen! (SEN A) | 5% |
| 4 Jun | Stine Skjævesland Pedersen+15.0 beat Margrethe Schrøder-Nielsen−9.521-19, 21-19 · Women's singles · Stavanger Sommerblomsten 2018 (SEN C) | 14% |
| 28 May | Camilla Persen+113.8 beat  Nikol Hermansen−99.621-18, 21-14 · Women's singles · Landsfinalen U15 Grunnspill pulje 1 (2. DS) | 11% |
| 21 May | Nancy Hang+12.3 beat Victoria Heiberg−11.721-11, 21-16 · Women's singles · Haugerud Haugerud vårcup (U11 B) | 7% |
| 30 Apr | Marius Sørby+89.0 beat Dirk Olivie−61.821-13, 21-18 · Men's singles · Vestre Aker Vestre Aker Open (SEN B) | 9% |
| 23 Apr | Espen Bakkelid+11.7 beat Tore Hansen−5.521-19, 15-21, 21-16 · Men's singles · Herøy Marine Harvest Cup (SEN B) | 3% |
| 16 Apr | Adrian Olsen-Loe Pedersen+62.1 beat Håkon Skogland Halvorsen−29.025-23, 16-21, 21-13 · Men's singles · Orkanger Orkla Cup (SEN A) | 2% |
| 9 Apr | Henrik Gabrielsen Opsahl+12.6 / Mette Skjævesland Pedersen+7.5 beat Elias Lenning−6.4 / Live Hov Grønbech−6.818-21, 21-19, 21-19 · Mixed doubles · Sandefjord UBM (U17 A) | 4% |
| 2 Apr | Cecilie Li+23.8 beat Delia Murtazalieva−19.410-21, 21-16, 22-20 · Women's singles · Eliteserien Sluttspill 5-8 (2. DS) | 2% |
| 19 Mar | Mathias Kjellesvik Skjørholm+32.1 beat Lars Lauvik−28.821-15, 18-21, 21-18 · Men's singles · Rubbestadneset Bømlo Wärtsilä Open Cup (SEN D) | 5% |
| 12 Mar | Johannes Orri Olafsson+53.9 beat  Mattias Xu−44.121-13, 17-21, 21-16 · Men's singles · Asker RT 13 + NRSenior (SEN E) | 1% |
| 5 Mar | Arild Hammeren+4.3 / Bård Sivertsen+12.2 beat  Noralf Gamlem−5.5 / Per Ivar Furholm−5.68-21, 21-13, 21-18 · Men's doubles · Askøy Veteranmesterskapet (O50 A) | 3% |
| 26 Feb | Lone Hopstad+25.5 beat Jenny Aalberg−16.621-15, 12-21, 21-19 · Women's singles · Grong Namdal Open (SEN B) | 4% |
| 19 Feb |  Jørgen Heggøy Knudsen+38.1 beat Jonas Onarheim Vea−34.121-17, 21-13 · Men's singles · Karmøy Karmøy singelen (U15 B) | 5% |
| 12 Feb | Sigrid Våbenø Berg+16.7 beat Jenny Aalberg−10.321-12, 14-21, 23-21 · Women's singles · Verdal Verdalstreffen (SEN C) | 2% |
| 5 Feb | Anna Olava Hansen+15.8 beat Clara Skeie−15.221-17, 21-15 · Women's singles · Sandefjord SaBK Open (U15 B) | 4% |
| 29 Jan | Thomas Haugen+102.0 beat Martin Haagenstad−92.222-24, 21-10, 21-14 · Men's singles · Klæbu Smash Cup 2018 (U17 A) | 2% |
| 22 Jan | Kenneth Haagenstad+3.7 / Ole Andreas Sagøy+5.2 beat Mark Anthony Benoy−4.3 / Jan Erik Søraas Lien−3.621-17, 13-21, 21-16 · Men's doubles · Leksvik KM Midtnorsk sør / Leksvik cup (SEN C) | 3% |
| 15 Jan | Ida Høyland W.+30.4 / Henny Lyfjell+22.5 beat Emilie Faarup Storvik−21.3 / Emilie Sotnes Hamang−19.121-17, 21-15 · Women's doubles · Eliteserien Grunnspill (1. DD) | 6% |
| 8 Jan | Mattis Olsen Berg+36.6 beat Jonatan Broch Granum−33.921-19, 21-18 · Men's singles · Bygdø RT 13 + NRSenior (U13 A) | 5% |
| 1 Jan | Andreas Andersen Roksvåg+67.2 / Sebastian Reijnen+110.2 beat Vetle Vinnes Bråten−76.7 / Brede Stenfeldt−88.921-15, 21-12 · Men's doubles · Frogner RT 15 + 17 (U15 A) | 12% |