OP, to make your very interesting postings a little easier to read, I have reformatted slightly. Also, based on the details you posted, I added Alexa's top results into the all-time collegiate lists, knowing, of course, that she doesn't qualify for these rankings because she went pro. Also, I might be missing something, but 13 of your 16 ranking numbers in the first post seem to be too low. You can see this when you compare your time/rank with that same time, as inserted into the collegiate list. I added what I think are corrections, below. Apologies if I'm missing an important point regarding your ranking numbers.
You will see that the mile ranking list is comprised of indoor times, with the exception of two races by Alexa.
Alexa's 4:09.88 at the Bryan Clay Invitational yesterday doesn't quite make the all-time list. I also discarded her 4:20.9 road mile. It's a great time, but it doesn't deserve to be in a list of best track times.
Alexa, if you read this, congratulations on your progress. Very impressive all-around!
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Alexa Efraimson is a senior in college at the University of Portland currently, and has senior status with respect to credits earned. Here are the facts:
"Alexa Efraimson
(Collegiate Athlete Sr. Standing vs NCAA History)"
"All Time
Collegiate List Ranking (Including Foreign Athletes)"
2018
1500m
21-Jul-18 Heusden-Zolder KBC Night of Athletics 4:07.06 #6 [?? I see it as #15]
Mile
2-Sep-18 Berlin ISTAF 4:24.82 #1 [agreed]
3000m
23-Aug-18 Rovereto Palio Città della Quercia 8:52.53 #8 [agreed]
2017
800m
11-Jun-17 Portland Track Festival 2:00.95
1500m
26-May-17 Eugene Prefontaine Classic 4:09.03
22-Jun-17 Sacramento USA Ch. 4:09.65
24-Jun-17 Sacramento USA Ch. 4:08.36 #9 [I see it as #20]
29-Jun-17 San Francisco TrackTown USA Summer Series 4:06.16 #2 [I see it as #6]
6-Jul-17 New York TrackTown USA Summer Series 4:06.25 #3 [I see it as #8]
12-Jul-17 Dublin Morton Games 4:06.73 #4 [I see it as #11]
16-Jul-17 Padova Meeting Citta di Padova 4:06.12 #2 [I see it as #5]
22-Jul-17 Heusden-Zolder KBC Night of Athletics 4:04.75 #2 [I see it as #3]
Indoor Mile
11-Feb-17 New York Millrose Games 4:29.54
2016
800m
15-May-16 Portland Twilight 2:00.99
1500m
7-May-16 Kingston Jamaica International Invitational IWC 4:08.37 #9 [I see it as #21]
28-May-16 Eugene Prefontaine Classic 4:08.81
4-Jun-16 Greenville Furman Elite 1500 4:06.38 #3 [I see it as #9]
10-Jul-16 Eugene U.S. Olympic Trials 4:07.34 #6 [I see it as #16]
6-Sep-16 Rovereto Palio Città della Quercia 4:09.30
Mile
6-Sep-16 Rovereto Palio Città della Quercia 4:27.39 #5 [I see it as #6] US Jr Record
2015
800m
15-Jul-15 Liège Meeting international de la province de Liège 2:01.11
1500m
17-Apr-15 Walnut Mt. SAC Relays 4:09.43
30-May-15 Eugene Prefontaine Classic 4:03.39 #2 [agreed] US Jr Record
7-Jul-15 Lignano Sabbiadoro Meeting Int. Sport Solidarieta 4:05.63 #2 [I see it as #4]
2014
800m
31-May-14 Mount Tahoma 4A State Meet 2:04.10
21-Jun-14 Seattle Brooks PR Invitational 2:03.26
1500m
14-Jun-14 New York adidas Grand Prix 4:07.05 #6 [I see it as #14]
3000m Indoor
1-Feb-14 Seattle Washington Invitational 9:00.16 US HS Record
2013
800m
16-Jun-13 Greensboro New Balance Nationals 2:07.04
1500m
8-Jun-13 Portland Track Festival 4:16.00
13-Jul-13 Donetsk IAAF World Youth Championships 4:16.07
3000m Indoor
26-Jan-13 Seattle Washington Invitational 9:31.18
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NCAA All Time Collegiate List, including Alexa Efraimson - who doesn't qualify
1500 METERS
3:59.90 Jenny Simpson (Colorado) 6/07/09
4:03.39 Alexa Efraimson 5/30/15 US Jr Record (would have been her HS senior year)
4:04.75 Alexa Efraimson 7/22/17
4:05.63 Alexa Efraimson 7/07/15 (would have been the summer after HS graduation)
4:06.12 Alexa Efraimson 7/16/17
4:06.16 Alexa Efraimson 6/29/17
4:06.19 Hannah England’ (Florida State) 6/14/08
4:06.25 Alexa Efraimson 7/06/17
4:06.38 Alexa Efraimson 6/04/16
4:06.67 Sally Kipyego’ (Texas Tech) 6/14/08
**10 performances by 4 performers**
4:06.73 Alexa Efraimson 7/12/17
4:06.75 Tiffany McWilliams (Mississippi State) 6/14/03
4:06.87 Emma Coburn (Colorado) 5/17/13
4:07.05 Alexa Efraimson 6/14/14 (HS junior year)
4:07.06 Alexa Efraimson 7/21/18
4:07.34 Alexa Efraimson 7/10/16
4:07.50 Sarah Brown (Tennessee) 6/14/08
4:07.69 Lena Nilsson’ (UCLA) 5/24/03
4:08.26 Suzy Hamilton (Wisconsin) 6/02/90
4:08.36 Alexa Efraimson 6/24/17
4:08.37 Alexa Efraimson 5/07/16
4:08.38 ————Simpson 4/24/09
4:08.54 Brie Felnagle (North Carolina) 5/17/08
4:08.75 Jessica Hull’ (Oregon) 6/09/18
U.S. Additions:
4:08.81 Alexa Efraimson 5/28/16
4:09.03 Alexa Efraimson 5/26/17
4:09.14 Nikki Hiltz (Arkansas) 6/09/18
4:09.15 Vicki Huber (Villanova) 5/15/88
4:09.30 Alexa Efraimson 9/06/16
4:09.45 Jasmin Jones (Tennessee) 6/02/90
4:09.43 Alexa Efraimson 4/17/15 (would have been her HS senior year)
4:09.49 Elise Cranny (Stanford) 6/09/18
MILE
4:24.82 Alexa Efraimson 9/02/18
4:25.91i Jenny Simpson (Colorado) 2/28/09
4:26.55i Elinor Purrier (New Hampshire) 2/09/18
4:27.18i Leah O’Connor (Michigan State) 3/14/15
4:27.19i Sally Kipyego’ (Texas Tech) 2/28/09
4:27.39 Alexa Efraimson 9/06/16 US Jr Record
4:27.54i Karissa Schweizer (Missouri) 1/27/18
4:28.31i Vicki Huber (Villanova) 2/05/88
4:28.31i Abbey D’Agostino (Dartmouth) 1/24/14
4:28.48i Katie Flood (Washington) 2/11/12
**10 performances by 9 performers**
4:28.71i Shelby Houlihan (Arizona State) 3/14/15
4:28.75i Kaela Edwards (Oklahoma State) 2/11/17
U.S. Additions:
4:29.47i Danae Rivers (Penn State) 2/09/19
3000 METERS
8:41.60i Karissa Schweizer (Missouri) 2/03/18
8:42.03i Jenny Simpson (Colorado) 3/14/09
8:45.97i Alicia Monson (Wisconsin) 2/09/19
8:47.35 Vicki Huber (Villanova) 6/03/88
8:48.77i Sally Kipyego’ (Texas Tech) 2/07/09
8:49.18i Kim Smith’ (Providence) 3/13/04
8:51.91i Abbey D’Agostino (Dartmouth) 2/15/14
8:52.53 Alexa Efraimson 8/23/18
8:52.57i Dominique Scott’ (Arkansas) 2/14/15
8:52.60i Emily Sisson (Providence) 2/14/15
**10 performances by 10 performers**
8:53.07 ————Huber 4/09/88
8:53.12i Kate Avery’ (Iona) 2/14/15
U.S. Additions:
8:53.54i PattiSue Plumer (Stanford) 2/27/83
8:54.27i Allie Ostrander (Boise State) 2/13/16
8:54.82 Kara Goucher (Colorado) 5/05/00
8:55.31i Katie Flood (Washington) 1/28/12