| Event | Rank | Mark | By | Meet |
| B-SP | 1 | 59-05.50 | Meinders, Clay (2015) (Agwsr, IA) (US#68) | Drake Relays(IA), 2015-04-25(#1) |
| B-SP | 2 | 58-01.25 | Winters, Nathan (2015) (Knoxville, IA) | IA 3A State Meet(IA), 2015-05-23(#1) |
| | | National Elites above. State Elites below | | |
| B-SP | 3 | 57-02.00 | Tritle, Keegan (2015) (Mount Vernon-Lisbon, IA) | IA 1A State Meet(IA), 2015-05-23(#1) |
| B-SP | 4 | 56-06.50 | Fitzgerald, Nathan (2015) (Central, IA) | IA 1A State Meet(IA), 2015-05-23(#2) |
| B-SP | 5 | 56-03.50 | Moser, Ryan (2015) (Clayton Ridge, IA) | IA 2A State Meet(IA), 2015-05-23(#1) |
| B-SP | 6 | 55-08.00 | Johnson, Tyler (2015) (Western Dubuque, IA) | IA 4A State Meet(IA), 2015-05-23(#1) |
| B-SP | 7 | 55-07.75 | Heinrich, Jake (2016) (Urbandale, IA) | IA 4A State Meet(IA), 2015-05-23(#2) |
| B-SP | 8 | 55-06.50 | Jacobus, Dalles (2016) (John F Kennedy, IA) | IA 4A State Meet(IA), 2015-05-23(#3) |
| B-SP | 8 | 55-06.50 | Wirfs, Tristan (2017) (Mt Vernon, IA) | IA 2A State Meet(IA), 2015-05-23(#2) |
| B-SP | 10 | 55-04.50 | Jansen, Garret (2015) (Pella, IA) | IA 3A State Meet(IA), 2015-05-23(#2) |
| B-SP | 11 | 55-00.75 | Applegate, Hezekiah (2015) (Johnston, IA) | IA 4A State Meet(IA), 2015-05-23(#4) |
| B-SP | 12 | 55-00.00 | Boldy, Marcus (2015) (Panorama, IA) | IA 2A State Meet(IA), 2015-05-23(#3) |
| B-SP | 13 | 54-04.50 | Kirkpatrick, Coy (2017) (Madrid, IA) | IA 2A State Meet(IA), 2015-05-23(#4) |
| B-SP | 14 | 54-03.25 | Verdon, Kyle (2015) (Davenport West, IA) | Bettendorf Boys ABC Invitational(IA), 2015-05-01(#1) |
| B-SP | 15 | 54-01.00 | Phelps, Nicholas (2018) (Kingsley-Pierson, IA) | IA 2A State Meet(IA), 2015-05-23(#5) |
| B-SP | 16 | 53-05.75 | Sander, Noah (2015) (North Cedar, IA) | IA 2A State Meet(IA), 2015-05-23(#6) |
| B-SP | 17 | 53-04.00 | Peterson, Tommy (2015) (Washington, IA) | IA 3A State Meet(IA), 2015-05-23(#3) |
| B-SP | 18 | 53-02.00 | Alexa, John (2016) (Sioux City East, IA) | IA 4A State Meet(IA), 2015-05-23(#5) |
| B-SP | 19 | 53-01.50 | Brinkman, Jared (2017) (Regina, IA) | IA 2A State Meet(IA), 2015-05-23(#7) |
| B-SP | 19 | 53-01.50 | Nelson, Erik (2015) (Waukee, IA) | IA 4A State Meet(IA), 2015-05-23(#6) |
| B-SP | 19 | 53-01.50 | Pierce, Zach (2015) (Gladbrook-Reinbeck, IA) | IA 1A State Meet(IA), 2015-05-23(#4) |
| B-SP | 22 | 53-01.00 | Mawdsley, Ben (2018) (Algona, IA) | North Central Conference Boys Championships(IA), 2015-05-11(#1) |
| B-SP | 23 | 53-00.00 | Johnson, Kane (2015) (North Scott, IA) | Bettendorf Boys ABC Invitational(IA), 2015-05-01(#2) |
| B-SP | 24 | 52-11.00 | Newberg, Alex (2016) (Urbandale, IA) | IA 4A State Meet(IA), 2015-05-23(#7) |
| B-SP | 25 | 52-08.25 | Martin, Larry (2015) (Waterloo East, IA) | IA 4A State Meet(IA), 2015-05-23(#8) |
| B-SP | 26 | 52-08.00 | Canby, Ben (2015) (Mt Pleasant, IA) | IA 3A State Meet(IA), 2015-05-23(#4) |
| B-SP | 27 | 52-06.00 | Duwa, Levi (2017) (Mid-Prairie, IA) | Drake Relays(IA), 2015-04-25(#8) |
| B-SP | 28 | 52-05.25 | Huffman, Nathan (2015) (Charles City, IA) | IA 3A State Meet(IA), 2015-05-23(#5) |
| B-SP | 29 | 52-02.75 | Twait, Cal (2015) (Manson Northwest Webster, IA) | IA 1A State Meet(IA), 2015-05-23(#5) |
| B-SP | 30 | 52-02.50 | Johnson, Nathaniel (2015) (North Scott, IA) | IA 4A State Meet(IA), 2015-05-23(#9) |
| B-SP | 31 | 52-02.25 | Beall, Drew (2015) (Anamosa, IA) | IA 2A State Meet(IA), 2015-05-23(#8) |
| B-SP | 32 | 52-00.50 | Blunt, Jayson (2015) (Monticello, IA) | IA 2A State Meet(IA), 2015-05-23(#9) |
| B-SP | 33 | 52-00.00 | Lensing, Carson (South Winneshiek, IA) | Crestwood Co-Ed Invitational(IA), 2015-04-30(#1) |
| B-SP | 34 | 51-09.00 | Genzen, Cody (2015) (West Des Moines Valley, IA) | IA 4A State Meet(IA), 2015-05-23(#10) |
| B-SP | 35 | 51-05.50 | Krantz, Brandon (2016) (Waukee, IA) | IA 4A State Meet(IA), 2015-05-23(#11) |
| B-SP | 36 | 51-04.00 | Girard, Patrick (2015) (Baxter, IA) | Drake Relays(IA), 2015-04-25(#13) |
| B-SP | 37 | 51-01.00 | Hill, Austin (2016) (Pella, IA) | IA 3A State Meet(IA), 2015-05-23(#7) |
| B-SP | 38 | 50-09.25 | Blaser, Billy (2017) (Western Dubuque, IA) | IA 4A State Meet(IA), 2015-05-23(#12) |
| B-SP | 39 | 50-09.00 | Wagner, Drew (2015) (Clear Creek-Amana, IA) | Drake Relays(IA), 2015-04-25(#16) |
| B-SP | 39 | 50-09.00 | Kelley, Jameel (2016) (Dubuque, IA) | IA 4A State Meet(IA), 2015-05-23(#13) |
| B-SP | 41 | 50-03.50 | Scheidegger, Mason (2016) (Newell-Fonda, IA) | IA 1A State Meet(IA), 2015-05-23(#6) |
| B-SP | 42 | 50-03.25 | Reed, Davonius (2016) (Applntn-Parksbg, IA) | IA 2A State Meet(IA), 2015-05-23(#11) |
| B-SP | 43 | 50-03.00 | Kithcart, Drew (2015) (Benton Community, IA) | IA 3A State Meet(IA), 2015-05-23(#8) |
| B-SP | 44 | 50-00.50 | Meinders, Caleb (2018) (Agwsr, IA) | East Marshall Boys Invitational(IA), 2015-04-13(#2) |
| B-SP | 44 | 50-00.50 | Schlenker, Cole (2016) (Bondurant-Farrar, IA) | IA 3A State Meet(IA), 2015-05-23(#9) |
| B-SP | 46 | 50-00.00 | Brimm, Kooper (2016) (Clarke Community, IA) | IA 2A State Meet(IA), 2015-05-23(#12) |
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| | | See more performances for B-SP | | |
