| 100 Backstroke | ||||||
| State Record: :51.11 National Record: :47.50 All-American Automatic: :51.29 All-American Consideration: :53.85 1998 Qualifying Time: :59.79 | ||||||
| Rank | Last Name | First Name | GR | School | Time | Date |
| 1 | GEVOCK | JOE | 11 | OTTUMWA | 0:53.72 | 1/16/99 |
| 2 | FERGUSON | ZACH | 11 | WDM DOWLING | 0:53.81 | 12/12/98 |
| 3 | SNIDER | JASON | 11 | WDM VALLEY | 0:54.78 | 1/7/99 |
| 4 | BOCKES | SETH | 12 | CEDAR FALLS | 0:55.03 | 12/12/98 |
| 5 | LUEBKE | TYLER | 11 | IOWA CITY | 0:56.29 | 12/17/98 |
| 6 | RENNER-ARJES | IAN | 12 | BETTENDORF | 0:56.30 | 12/17/98 |
| 7 | NICKELL | B.J. | 11 | CR KENNEDY | 0:56.98 | 1/14/99 |
| 8 | JENSEN | BLAKE | 10 | LEWIS CENTRAL | 0:57.77 | 12/18/98 |
| 9 | BILLUPS | NATE | 10 | BETTENDORF | 0:57.83 | 12/22/98 |
| 10 | BRENT | B.J. | 12 | ANKENY | 0:57.87 | 12/17/98 |
| 11 | HACKNEY | CODY | 10 | CR KENNEDY | 0:58.21 | 12/15/98 |
| 12 | COAD | MATT | 12 | SC METRO | 0:58.48 | 12/15/98 |
| 13 | PETERSON | SEAN | 11 | LEWIS CENTRAL | 0:58.68 | 1/14/99 |
| 14 | HAMMOND | TIM | 12 | GRINNELL | 0:58.72 | 1/14/99 |
| 15 | LANDHERR | JEFF | 10 | LINN-MAR | 0:58.83 | 12/19/98 |
| 16 | HUSTON | KIEL | 9 | ANKENY | 0:59.00 | 1/5/99 |
| 17 | BETLACH | AARON | 12 | ANKENY | 0:59.39 | 1/5/99 |
| 18 | BORRETT | BLAKE | 11 | CR JEFFERSON | 0:59.48 | 12/12/98 |
| 19 | OBERHOFFER | CHRIS | 12 | DBQ SENIOR | 0:59.62 | 1/16/99 |
| 20 | STANIGER | STEVE | 11 | CEDAR FALLS | 0:59.75 | 1/5/99 |
| 21 | BASTRON | ALEX | 11 | OTTUMWA | 0:59.85 | 1/14/99 |
| 22 | DUFFY | DEREK | 9 | MASON CITY | 0:59.95 | 1/7/99 |
| 23 | DOUGLAS | ADAM | 10 | WDM VALLEY | 1:00.11 | 1/7/99 |
| 24 | DANTE | MARK | 12 | DM HOOVER | 1:00.30 | 12/5/98 |
| 25 | MC DUFF | MATT | 11 | AMES | 1:00.45 | 12/17/98 |
| 26 | KOLFENBACH | JOE | 11 | DBQ HEMPSTEAD | 1:00.66 | 1/9/99 |
| 27 | LEHENBAUER | ADAM | 9 | BETTENDORF | 1:00.72 | 1/9/99 |
| 28 | KUKLA | JOE | 11 | DBQ HEMPSTEAD | 1:00.90 | 1/5/99 |
| 29 | SCHERLER | BEN | 12 | DAVENPORT CENTRAL | 1:01.16 | 1/7/99 |
| 30 | SMITH | MITCH | 12 | WDM VALLEY | 1:01.19 | 1/14/99 |
| 31 | LEAR | AARON | 12 | MUSCATINE | 1:01.48 | 12/19/98 |
| 32 | JANES | GREG | 12 | CR WASHINGTON | 1:01.86 | 12/17/98 |
| 33 | BRIGGS | DUSTIN | 11 | BOONE | 1:01.89 | 1/7/99 |
| 34 | NORING | JASON | 12 | CEDAR FALLS | 1:01.98 | 12/10/98 |
| 35 | LANE | COLLIN | 10 | MUSCATINE | 1:02.01 | 12/19/98 |
| 36 | WOOD | JOHNNY | 9 | WDM VALLEY | 1:02.11 | 12/15/98 |
| 37 | WOLF | RICHARD | 10 | WDM VALLEY | 1:02.16 | 12/15/98 |
| 38 | COLLINS | MATT | 9 | MUSCATINE | 1:02.20 | 12/10/98 |
| 39 | UMPHRESS | MATT | 11 | WDM VALLEY | 1:02.35 | 1/14/99 |
| 40 | POINDEXTER | GAVIN | 12 | CR KENNEDY | 1:02.37 | 1/216/98 |
| 41 | MITCHELL | ADAM | 9 | WDM DOWLING | 1:02.38 | 12/8/98 |
| 42 | ANDERSON | JUSTIN | 12 | BETTENDORF | 1:02.41 | 12/22/98 |
| 43 | SMITH | IAN | 10 | CR WASHINGTON | 1:02.44 | 12/17/98 |
| 44 | GEVOCK | A.J. | 9 | OTTUMWA | 1:02.57 | 1/16/99 |
| 45 | DRISCOLL | BEN | 11 | CF-NU HIGH | 1:02.66 | 12/12/98 |
| 46 | WELLS | DAN | 12 | DAVENPORT CENTRAL | 1:02.68 | 1/9/99 |
| 47 | SAWYER | RYAN | 11 | MASON CITY | 1:02.88 | 12/1/98 |
| 48 | ABRAM | ALAN | 11 | WDM VALLEY | 1:03.09 | 12/8/98 |
| 49 | SAXTON | JON | 9 | AMES | 1:03.37 | 12/5/98 |
| 50 | HIGGINS | KRIS | 11 | PLEASANT VALLEY | 1:03.52 | 1/7/99 |
| 51 | GRAMMONS | PAUL | MUSCATINE | 1:03.66 | 1/16/99 | |
| 52 | MC ANALLY | RYAN | 10 | BETTENDORF | 1:03.79 | 12/10/98 |
| 53 | HAHN | ERIC | WILLIAMSBURG | 1:03.82 | 1/16/99 | |
| 54 | LEMME | PAT | 10 | CR KENNEDY | 1:03.92 | 1/16/99 |
| 55 | SIMOENS | RYAN | 12 | CR JEFFERSON | 1:03.96 | 12/12/98 |
| 56 | SOGGE | MIKE | 10 | MARSHALLTOWN | 1:03.98 | 1/14/99 |
| 57 | GANTENBEIN | JACOB | 10 | DBQ SENIOR | 1:04.16 | 12/19/98 |