Des Moines, IA·May 1-3, 1998
Director: Larry Loupee
| Main Tournament (117 players) | ||||
| Rank | Player | City/State | Points | |
| 1 | Ron Hamilton | Topeka, KS | 147 | |
| 2 | Roberta E. Schweig | Elgin, IL | 105 | |
| 3 | Donald Flesch | Brookfield, WI | 70 | |
| 3 | Bob Fletcher | Aurora, CO | 70 | |
| 5 | Donald Jurgens | Clear Lake, MN | 42 | |
| 5 | Natalie Pliura | Ellsworth, IL | 42 | |
| 5 | Margaret Elson | Bondurant, IA | 42 | |
| 5 | Bob Joslin | Waconia, MN | 42 | |
| 9 | Larry C. Loupee | Newton, IA | 21 | |
| 9 | Donald A. Patrin | Saint Paul, MN | 21 | |
| 9 | Jerry Mittelstaedt | Gold Canyon, AZ | 21 | |
| 9 | Ray Boesel | Glenbeulah, WI | 21 | |
| 9 | David H. Gustafson | Minnetonka, MN | 21 | |
| 9 | Ronald O. Sather | Northfield, MN | 21 | |
| 9 | Marvin Lang | Woodstock, IL | 21 | |
| 9 | Joan Rein | Carver, MN | 21 | |
| 17 | Nicky Kniech | Milwaukee, WI | 7 | |
| 17 | Newton Bartholomew | Blue Springs, MO | 7 | |
| 17 | Ronald Rose | Duluth, MN | 7 | |
| 17 | James H. Harrison | Marshalltown, IA | 7 | |
| 17 | Paul Kilkelly | Waukegan, IL | 7 | |
| 17 | Janet M. Dehaven | Minneapolis, MN | 7 | |
| 17 | Dana Rodgers | Des Moines, IA | 7 | |
| 17 | Hilmar Krueger | Kearney, NE | 7 | |
| 17 | Donald M. Alexon | Northfield, MN | 7 | |
| 17 | Myron Schmidt | Wykoff, MN | 7 | |
| 17 | Steven M. Herwig | Paullina, IA | 7 | |
| 17 | Helen Railsback | Syracuse, NE | 7 | |
| 17 | Duane W. Toll | Franklin, WI | 7 | |
| 17 | PLAYER DUMMY | ANYTOWN, WI | 7 | |
| Main Qualifying (22 games) | ||||
| Rank | Player | City/State | Game Pts | Points |
| 1 | Larry C. Loupee | Newton, IA | 38 | 60 |
| 2 | Donald Flesch | Brookfield, WI | 36 | 50 |
| 3 | Ron Hamilton | Topeka, KS | 32 | 30 |
| 4 | Margaret Elson | Bondurant, IA | 32 | 30 |
| 5 | James H. Harrison | Marshalltown, IA | 32 | 30 |
| 6 | Myron Schmidt | Wykoff, MN | 31 | 25 |
| 7 | Steven M. Herwig | Paullina, IA | 31 | 25 |
| 8 | Natalie Pliura | Ellsworth, IL | 31 | 25 |
| 9 | Newton Bartholomew | Blue Springs, MO | 31 | 25 |
| 10 | Helen Railsback | Syracuse, NE | 30 | 20 |
| 11 | Donald M. Alexon | Northfield, MN | 30 | 20 |
| 12 | Jerry Mittelstaedt | Gold Canyon, AZ | 30 | 20 |
| 13 | Ray Boesel | Glenbeulah, WI | 30 | 20 |
| 14 | Hilmar Krueger | Kearney, NE | 30 | 20 |
| 15 | Duane W. Toll | Franklin, WI | 30 | 20 |
| Consolation Tournament (72 players) | ||||
| Rank | Player | City/State | Points | |
| 1 | Jim McManus | Milwaukee, WI | 63 | |
| 2 | Dana Rodgers | Des Moines, IA | 45 | |
| 3 | Mike Vadnais | Saint Paul, MN | 30 | |
| 3 | Marlene Lazachek | Franklin, WI | 30 | |
| 5 | Warren Sondericker | Milwaukee, WI | 18 | |
| 5 | Brad Stevens | Denver, CO | 18 | |
| 5 | Steve B. Johnson | Story City, IA | 18 | |
| 5 | Sherrill Foote | Marshalltown, IA | 18 | |
| 9 | Frank L. Trojan | Saint Paul, MN | 9 | |
| 9 | Nancy Toll | Saint Francis, WI | 9 | |
| 9 | Frank Schweig | Carpentersville, IL | 9 | |
| 9 | Iris Fuller | Aurora, CO | 9 | |
| 9 | Donald Ernst | Saint Paul, MN | 9 | |
| 9 | Helen Railsback | Syracuse, NE | 9 | |
| 9 | Allen Schiller | Ann Arbor, MI | 9 | |
| 9 | Martha Fingleton | Milwaukee, WI | 9 | |
| 17 | James Dahl | Blair, WI | 3 | |
| 17 | Michael Barber | Unalaska, AK | 3 | |
| Consolation Qualifying (9 games) | ||||
| Rank | Player | City/State | Game Pts | Points |
| 1 | Frank L. Trojan | Saint Paul, MN | 16 | 15 |
| 2 | Martha Fingleton | Milwaukee, WI | 16 | 15 |
| 3 | Steve B. Johnson | Story City, IA | 15 | 12 |
| 4 | Dana Rodgers | Des Moines, IA | 14 | 9 |
| 5 | Frank Schweig | Carpentersville, IL | 14 | 9 |
| 6 | Marlene Lazachek | Franklin, WI | 14 | 9 |
| 7 | Allen Schiller | Ann Arbor, MI | 14 | 9 |
| 8 | Nancy Toll | Saint Francis, WI | 13 | 6 |
| 9 | Warren Sondericker | Milwaukee, WI | 13 | 6 |