| W | World | 3:26.00 | Hicham El Guerrouj | MAR | 6/14/1998 | Rome, ITA |
| U | American | 3:29.30 | Bernard Lagat | Nike | 7/28/2005 | Rieti, ITA |
| L | 2014 Winner | 3:44.59 | Rorey Hunter | Indiana | ||
| C | Collegiate | 3:35.30 | Sydney Maree | Villanova | 5/6/1981 | Baton Rouge, LA |
| B | Conference Meet | 3:38.56 | Jim Spivey | Indiana | 1980 | Champaign, IL |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | DuVall, Kyle | FR | Indiana | 3:45.85 | 3:45.85 ACC-Big Ten Challenge |
| 2 | Zivec, Jakub | SR | Maryland | 3:44.33 | 3:44.33 Kehoe Twilight Meet |
| 3 | Schwartzer, Matthew | SO | Indiana | 3:43.91 | 3:43.91 2015 Billy Hayes Invitational |
| 4 | Soter, Nick | SO | Michigan St. | 3:51.85 | 3:51.85 Raleigh Relays |
| 5 | Hill, Bobby | FR | Penn State | 3:49.30 | 3:49.30 Payton Jordan Invitational |
| 6 | Bund, Billy | FR | Michigan | 3:50.56 | 3:50.56 2015 Arizona State Pac-12 vs Big 10 Invitational |
| 7 | Skaret, Christian | JR | Minnesota | 3:49.62 | 3:49.62 Bryan Clay Invitational |
| 8 | Hirsch, Carl | SO | Wisconsin | 3:45.90 | 3:45.90 Wisconsin Open |
| 9 | Wynn, Tyler | JR | Purdue | 3:52.93 | 3:52.93 Florida Relays |
| 10 | Zea, Tony | FR | Illinois | NT | |
| 11 | Handshoe, Kevin | JR | Purdue | 3:58.01 | 3:58.01 Bobcat Invitational |
| 12 | Gardarsson, Daniel | FR | Iowa | 3:53.74 | 3:53.74 2015 Beach Invitational |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Dulian, Blayne | SR | Minnesota | 3:45.39 | 3:45.39 Bryan Clay Invitational |
| 2 | Hardt, Sherod | SO | Michigan St. | 3:46.86 | 3:46.86 ACC-Big Ten Challenge |
| 3 | Ramos, McKena | SO | Wisconsin | 3:47.24 | 3:47.24 Wisconsin Open |
| 4 | Price, Brook | SO | Iowa | 3:56.11 | 3:56.11 2015 Beach Invitational |
| 5 | Hall, Wayde | FR | Minnesota | 3:50.20 | 3:50.20 Bryan Clay Invitational |
| 6 | Creese, Robby | JR | Penn State | 3:39.02 | 3:39.02 Payton Jordan Invitational |
| 7 | Sattler, Jeffrey | JR | Michigan | 3:50.21 | 3:50.21 2015 Arizona State Pac-12 vs Big 10 Invitational |
| 8 | Hogarty, Tom | SO | Maryland | 3:56.30 | 3:56.30 Kehoe Twilight Meet |
| 9 | DeFabio, Chris | SR | Rutgers | 3:52.53 | 3:52.53 Larry Ellis (College) |
| 10 | Hardy, Joe | FR | Wisconsin | 3:44.81 | 3:44.81 LSU Alumni Gold |
| 11 | Hart, Michael | SO | Iowa | 3:52.25 | 3:52.25 Baldy Castillo Invitational |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Weaver, Steven | JR | Ohio State | 3:49.67 | 3:49.67 Ohio State - Jesse Owens Classic |
| 2 | Hinen, Dillon | JR | Purdue | 3:52.07 | 3:52.07 Florida Relays |
| 3 | Lee, Garrett | SO | Illinois | 3:45.82 | 3:45.82 Illinois Twilight |
| 4 | Skeete, Owen | JR | Indiana | 3:46.40 | 3:46.40 ACC-Big Ten Challenge |
| 5 | Veitenheimer, Drake | SR | Michigan St. | 3:47.82 | 3:47.82 Virginia Challenge |
| 6 | Hunter, Rorey | SR | Indiana | 3:43.70 | 3:43.70 2015 Billy Hayes Invitational |
| 7 | Blank, Kevin | FR | Ohio State | 3:50.50 | 3:50.50 Ohio State - Jesse Owens Classic |
| 8 | Fourman, Sam | JR | Iowa | 3:44.50 | 3:44.50 2015 Drake Relays presented by Hy-Vee |
| 9 | Zeman, Paul | JR | Illinois | 3:52.62 | 3:52.62 Musco Invitational |
| 10 | Lee, Malik | SO | Illinois | 3:54.90 | 3:54.90 Musco Invitational |
| 11 | Wiley, Luke | FR | Rutgers | 3:57.73 | 3:57.73 Princeton Open (College) |
| W | World | 3:26.00 | Hicham El Guerrouj | MAR | 6/14/1998 | Rome, ITA |
| U | American | 3:29.30 | Bernard Lagat | Nike | 7/28/2005 | Rieti, ITA |
| L | 2014 Winner | 3:44.59 | Rorey Hunter | Indiana | ||
| C | Collegiate | 3:35.30 | Sydney Maree | Villanova | 5/6/1981 | Baton Rouge, LA |
| B | Conference Meet | 3:38.56 | Jim Spivey | Indiana | 1980 | Champaign, IL |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Ramos, McKena | SO | Wisconsin | 3:47.82 | 3:47.24 Wisconsin Open |
| 2 | Hardy, Joe | FR | Wisconsin | 3:47.75 | 3:44.81 LSU Alumni Gold |
| 3 | Hardt, Sherod | SO | Michigan St. | 3:48.30 | 3:46.86 ACC-Big Ten Challenge |
| 4 | Dulian, Blayne | SR | Minnesota | 3:48.14 | 3:45.39 Bryan Clay Invitational |
| 5 | Hunter, Rorey | SR | Indiana | 3:49.48 | 3:43.70 2015 Billy Hayes Invitational |
| 6 | Skeete, Owen | JR | Indiana | 3:49.33 | 3:46.40 ACC-Big Ten Challenge |
| 7 | Creese, Robby | JR | Penn State | 3:47.68 | 3:39.02 Payton Jordan Invitational |
| 8 | Fourman, Sam | JR | Iowa | 3:49.49 | 3:44.50 2015 Drake Relays presented by Hy-Vee |
| 9 | DuVall, Kyle | FR | Indiana | 3:53.05 | 3:45.85 ACC-Big Ten Challenge |
| 10 | Schwartzer, Matthew | SO | Indiana | 3:52.72 | 3:43.91 2015 Billy Hayes Invitational |
| 11 | Zivec, Jakub | SR | Maryland | 3:53.01 | 3:44.33 Kehoe Twilight Meet |
| 12 | Lee, Garrett | SO | Illinois | 3:49.66 | 3:45.82 Illinois Twilight |