2018 North American Open
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 | |
| Location | New York City, NY |
|---|---|
| Host | USPML |
| Date | October 13-14, 2018 |
| Player count | 76 players |
| Finalists | |
| Champion | Yoshifumi Uemura |
| Runner up | Mac Hidaka |
| Third | Loïc Roberge |
| Fourth | Allon Scheyer |
The 2018 North American Open is the first instance of the championship series for the North American continent. It is hosted by the USPML under the guidance of NARMA.
Rules
Tournament rules operate under the WRC rules.
Represented clubs
- Baltimore Mahjong Club
- Chicago Area Mahjong
- Club Riichi de Montréal
- Dallas Fort-Worth Mahjong
- Los Angeles Pride of Mahjong
- Nine Gates Mahjong Club
- Oklahoma Mahjong Community
- Pacific Mahjong League
- Panhandle Mahjong
- Riichi Mahjong Columbus
- Southeast Michigan Mahjong
- United States Professional Mahjong League
- Washington MahJong Meetup
Format and results
The format utilizes a seven hanchan round robin followed by a two hanchan final. Players ranked fifth through twelfth also receive awards.
Round robin
| Place | Name | H1 | H2 | H3 | H4 | H5 | H6 | H7 | Score |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mac Hidaka | 28.5 | 6.5 | 43.1 | 21.7 | 39.0 | 25.8 | 4.2 | 168.8 |
| 2 | Loic Roberge | 19.0 | 30.5 | 13.4 | 5.8 | -15.5 | 45.3 | 34.4 | 132.9 |
| 3 | Yoshifumi Uemura | 5.6 | 40.4 | 33.0 | 10.4 | 36.2 | 18.4 | -17.8 | 126.2 |
| 4 | Allon Scheyer | 25.1 | 46.4 | 7.1 | -8.4 | 31.8 | 28.8 | -6.0 | 124.8 |
| 5 | Daniel Moreno | 36.6 | 15.0 | -8.3 | 11.8 | 46.6 | 2.4 | 10.9 | 115.0 |
| 6 | Jessica Lang | 4.2 | 27.5 | 5.4 | 22.0 | 11.1 | 20.9 | 7.7 | 98.8 |
| 7 | Remle Robertson | 10.5 | 21.2 | 53.5 | -6.8 | -26.1 | 30.7 | 11.5 | 94.5 |
| 8 | Pengqi Cheng | 33.9 | 0.0 | 8.6 | 10.6 | -21.1 | 17.1 | 42.8 | 91.9 |
| 9 | Aaron David Ebejer | 26.0 | 26.6 | 36.3 | 41.4 | -27.5 | 19.6 | -32.6 | 89.8 |
| 10 | Michael Donaghy | -2.5 | 9.5 | 27.1 | 24.2 | 46.7 | -53.0 | 32.4 | 84.4 |
| 11 | Sylvain Royer | 62.7 | -28.7 | -40.0 | 52.1 | 6.6 | 21.3 | 7.4 | 81.4 |
| 12 | Austin Tai | 41.4 | -13.0 | 7.1 | 48.2 | 28.3 | -20.7 | -10.2 | 81.1 |
| 13 | Patrick Nguyen | 22.5 | 21.0 | -4.0 | 30.0 | 8.8 | 32.2 | -30.0 | 80.5 |
| 14 | James Bragg | -32.1 | 41.4 | -29.7 | 47.6 | 30.8 | -8.1 | 9.6 | 59.5 |
| 15 | Jaben McCormack | -9.6 | -5.7 | 10.1 | -7.2 | 25.6 | 43.7 | -3.8 | 53.1 |
| 16 | Tina Koshimoto | 12.1 | 31.9 | 14.0 | 28.8 | -20.3 | -53.4 | 35.5 | 48.6 |
| 17 | Michael McLeod | 24.0 | -27.1 | -13.5 | 4.8 | 29.4 | -2.2 | 32.9 | 48.3 |
| 18 | Shane Zamora | 5.9 | 35.9 | 9.3 | 16.5 | 8.7 | 1.2 | -33.6 | 43.9 |
| 19 | Zhuri Zhang | 30.9 | -23.6 | -8.8 | 18.8 | -6.7 | 27.0 | 5.9 | 43.5 |
| 20 | Andrew Whitcomb | 29.7 | 1.7 | -8.0 | 13.6 | -2.7 | 24.2 | -17.2 | 41.3 |
| 21 | Gregory Chin | 32.1 | 5.7 | 12.1 | -11.8 | 9.3 | -43.5 | 33.2 | 37.1 |
| 22 | Ryan Adams | 27.7 | 28.1 | -14.6 | -19.8 | 29.8 | -9.6 | -10.8 | 30.8 |
| 23 | Brian Tseng | -7.8 | -4.4 | 26.4 | 3.6 | 33.6 | -16.0 | -6.1 | 29.3 |
| 24 | Noah Bock | 11.1 | 26.9 | 3.0 | -5.5 | -7.9 | -4.3 | 2.6 | 25.9 |
| 25 | Zifei Chen | 8.8 | 8.2 | 7.9 | -38.6 | 0.0 | 6.6 | 32.1 | 25.0 |
| 26 | Yuji Sugimoto | -2.7 | 2.6 | 26.1 | -7.1 | -6.2 | -26.2 | 34.7 | 21.2 |
| 27 | Matthew Myers | -21.8 | 39.6 | 30.8 | -1.1 | 23.3 | -24.2 | -27.6 | 19.0 |
| 28 | Kyle Le | -11.8 | 9.0 | -33.3 | 24.1 | 9.9 | 9.3 | 11.7 | 18.9 |
| 29 | Gemma Sakamoto | -26.6 | -37.3 | -2.7 | -5.7 | 43.5 | 39.9 | 6.2 | 17.3 |
| 30 | Aldwin Gordula | -3.7 | -7.4 | 27.7 | 8.5 | -4.6 | 8.6 | -15.4 | 13.7 |
| 31 | David Clarke | 36.8 | -29.5 | 29.6 | -34.0 | 27.6 | -4.0 | -14.5 | 12.0 |
| 32 | Grant Mahoney | -24.1 | 22.7 | -30.9 | -16.6 | 21.9 | -2.9 | 41.1 | 11.2 |
| 33 | Michael Lee | 23.3 | 28.3 | -34.9 | -11.2 | 22.9 | 8.7 | -27.6 | 9.5 |
| 34 | Ankhang Huynh | 8.7 | -5.8 | 12.3 | -26.0 | -17.0 | 22.5 | 9.0 | 3.7 |
| 35 | Arthur McAnally | -39.5 | 27.1 | -34.8 | 46.3 | 34.6 | -22.1 | -8.3 | 3.3 |
| 36 | Edwin Dizon | 11.1 | -3.7 | 15.9 | -11.4 | -27.6 | -24.9 | 38.9 | -1.7 |
| 37 | William Huie | -13.4 | -5.1 | 36.1 | -39.2 | 17.1 | -5.0 | 6.3 | -3.2 |
| 38 | Zachary Leak | 33.8 | -32.2 | 28.3 | -21.8 | -52.5 | 19.1 | 21.2 | -4.1 |
| 39 | Sakurai Takahiro | 0.1 | -21.0 | 23.9 | -14.0 | 0.7 | 4.7 | -6.0 | -11.6 |
| 40 | Shannon Granville | 6.3 | -0.9 | -32.3 | 40.6 | 8.7 | -13.5 | -25.3 | -16.4 |
| 41 | Alessandro Lara | -28.7 | 9.2 | -28.5 | -14.1 | -1.1 | 9.0 | 37.4 | -16.8 |
| 42 | George Liu-Krason | 23.7 | -32.0 | -5.7 | 3.2 | 10.4 | 12.0 | -29.7 | -18.1 |
| 43 | Heyward Zhao | 42.2 | 16.2 | -10.9 | -20.6 | 15.1 | -45.2 | -15.5 | -18.7 |
| 44 | Kinyan Lui | -32.0 | -13.4 | 2.6 | 10.7 | 2.2 | -22.1 | 33.2 | -18.8 |
| 45 | Vincent Gau | -23.1 | -38.2 | 38.5 | 29.2 | -29.8 | -10.3 | 13.8 | -19.9 |
| 46 | Si L Lai | -28.9 | 16.0 | 25.7 | -58.4 | -7.6 | 21.9 | 10.5 | -20.8 |
| 47 | Wei Bin Wang | -11.0 | 8.1 | -7.7 | -11.7 | 7.0 | -25.1 | 17.3 | -23.1 |
| 48 | Steven Augustin | -43.0 | 20.8 | -18.8 | 24.1 | -50.8 | 12.6 | 29.3 | -25.8 |
| 49 | Alexander Levin | -25.0 | -8.9 | 28.5 | 8.6 | 8.3 | -35.1 | -3.8 | -27.4 |
| 50 | Kevin Shi | -1.1 | -19.5 | 10.2 | -10.2 | -23.1 | -13.6 | 25.6 | -31.7 |
| 51 | Pete Molski | -34.1 | -11.4 | -48.7 | 50.2 | -6.9 | -15.3 | 33.1 | -33.1 |
| 52 | Bruce Bland | -23.1 | -29.0 | -23.4 | 2.9 | 38.8 | -36.2 | 35.7 | -34.3 |
| 53 | Kelly Bohan | 8.5 | 11.2 | -25.4 | 4.5 | 19.3 | -20.5 | -35.1 | -37.5 |
| 54 | David Li | -14.1 | -19.3 | -24.9 | -19.1 | 15.4 | 58.1 | -34.9 | -38.8 |
| 55 | Toshiko Nishikawa | -6.0 | -45.8 | -11.6 | 37.2 | -5.6 | -19.6 | 12.2 | -39.2 |
| 56 | John Erickson | -14.9 | 26.1 | 31.9 | -25.7 | -27.3 | 7.9 | -38.1 | -40.1 |
| 57 | Robert Carmosio | 24.6 | -30.8 | 19.8 | -11.4 | -13.0 | -6.6 | -30.1 | -47.5 |
| 58 | Pierce Edwards | -35.9 | 8.1 | 5.4 | 7.7 | -39.6 | 3.6 | -13.2 | -63.9 |
| 59 | Bing Ho Lee | -43.1 | 35.0 | 15.9 | -39.8 | -6.4 | 3.9 | -29.7 | -64.2 |
| 60 | Charles McDonell | -24.1 | 20.4 | -6.8 | -5.2 | -47.7 | 30.3 | -33.7 | -66.8 |
| 61 | Eric Nguyen | -9.9 | -29.2 | -46.8 | 33.2 | 13.1 | 6.2 | -36.7 | -70.1 |
| 62 | Jeffrey O'Connell | -42.5 | -23.4 | -13.8 | 27.1 | -31.4 | 22.5 | -9.4 | -70.9 |
| 63 | Danny Fan | -26.6 | -5.0 | -19.4 | -16.8 | -24.8 | -15.8 | 36.6 | -71.8 |
| 64 | Joseph McGowan | -12.0 | -49.4 | 16.1 | -7.3 | 20.0 | -22.8 | -29.2 | -84.6 |
| 65 | Chuck Ford | -3.5 | 9.2 | -31.7 | -30.8 | -12.2 | -7.1 | -19.8 | -95.9 |
| 66 | Ashlee Leak | 26.0 | -29.8 | -5.1 | -43.4 | -27.6 | -40.5 | 13.1 | -107.3 |
| 67 | Gabriel Ocasio | 12.9 | -7.2 | 0.5 | -25.3 | -47.9 | 8.5 | -54.8 | -113.3 |
| 68 | Nikki Aldridge | -11.1 | -16.3 | -27.8 | -27.5 | -12.6 | -6.8 | -21.1 | -123.2 |
| 69 | Rachel Halperin | -17.0 | -37.2 | -31.4 | 6.6 | -10.8 | -4.9 | -37.1 | -131.8 |
| 70 | Wei Taur | -36.1 | -32.8 | -32.3 | -37.2 | -9.3 | 20.4 | -14.9 | -142.2 |
| 71 | Donald Clark | -25.7 | -12.9 | -26.8 | -47.6 | -9.5 | -26.4 | -6.0 | -154.9 |
| 72 | Christopher Woelkers | -24.0 | -39.3 | -7.5 | -25.8 | -63.9 | 11.6 | -9.4 | -158.3 |
| SUB | Henry Chen | 10.7 | -24.5 | -32.4 | 39.2 | 20.2 | -1000.0 | -1000.0 | -1986.8 |
| DNF | Kaoru Tachibana | -8.7 | 10.5 | 45.1 | -16.4 | -43.9 | -1000.0 | -1000.0 | -2013.4 |
| DNF | Nicholas Naimo | 6.6 | -4.6 | -7.8 | -31.9 | -33.5 | -1000.0 | -1000.0 | -2071.2 |
| SUB | Ty Kennedy | 22.2 | -6.2 | -38.3 | -25.4 | -26.3 | -1000.0 | -1000.0 | -2074.0 |
Final
Round robin scores did not factor into the final. The final four had two hanchan to produce the highest score and win the tournament overall.
| Player name | Hanchan 1 | Hanchan 2 | Total |
|---|---|---|---|
| Yoshifumi Uemura | 35.0 | 12.9 | 47.9 |
| Mac Hidaka | -0.8 | 43.4 | 42.6 |
| Loïc Roberge | 13.2 | -36.7 | -23.5 |
| Allon Scheyer | -47.4 | -20.6 | -68 |