For any puzzle (not featured in an official Speed Puzzling contest) with at least 5 individual entries, here are the results.  As of 9/30/22, here are 41 such puzzles.
300 Pieces
(7 puzzles so far)
Delightful Donuts (Buffalo)
  1. 0:43:52  Kimberly H
  2. 0:48:58  Jules F
  3. 1:00:14  Brittany Y
  4. 1:04:50  Lawren D
  5. 1:19:54  Rose B
Drops of Color (Buffalo)
  1. 0:35:04  Linnzi M
  2. 0:36:36  Jonathan C
  3. 0:36:38  Heather C
  4. 0:43:44  Jessica C
  5. 0:59:04  Maria J
  6. 1:00:56  Chris B
Frosty Treats (Buffalo)
  1. 0:22:14  Sarah S
  2. 0:34:28  Linnzi M
  3. 0:35:17  Jessica G
  4. 0:36:23  Amber H
  5. 0:38:05  Phoebe W
  6. 0:40:59  Jules F
  7. 0:41:38  Chris B
  8. ​0:43:06  Ashley A
  9. 0:44:44  Kimberly H
  10. 0:46:07  Jonathan C
  11. 1:02:39  Rose B
  12. 1:08:57  Kim C
Fruits and Veggies (Buffalo)
  1. 0:37:32  Tammy M
  2. 0:41:42  Yvonne F
  3. 0:47:01  Kara C
  4. 0:47:49  Alyssa Z
  5. 1:01:42  Chris B
Plumes of Color (Buffalo)
  1. 0:27:11  Sarah S
  2. 0:33:53  Heather C
  3. 0:33:55  Yvonne F
  4. 0:36:37  Jonathan C
  5. 0:39:62  Chris B
  6. 0:44:44  Amber H
Relaxing with a Puzzle (Buffalo)
  1. 0:36:19  Yvonne F
  2. 0:52:11  Alyssa Z
  3. 0:52:22  Jonathan C
  4. 1:13:39  Lawren D
  5. 1:16:46  Chris B
Wanderlust (Buffalo)
  1. 0:24:49  Yvonne F
  2. 0:29:24  Noelle M
  3. 0:30:29  Tammy M
  4. ​0:31:05  Jonathan C
  5. 0:31:34  Karsten A
  6. 0:35:03  Cleo V
  7. 0:36:14  Claire T
  8. 0:47:02  Chris B
  9. 1:05:44  Rose B
500 Pieces
(28 puzzles so far)
Alpaca Lunch (Ravensburger)
  1. 1:06:26  Andrew B
  2. 1:08:45  Yvonne F
  3. 1:25:31  Kara C
  4. 2:00:53  Chris B
  5. 2:03:08  Jules F
Artsy Cats (Mudpuppy)
  1. 0:46:31  Yvonne F
  2. 0:48:21  Robin D
  3. 0:50:31  Tammy M
  4. 0:51:52  Amber H
  5. 0:56:39  Sarah B
  6. 1:07:13  Tracy F
  7. 1:08:47  Chris B
  8. 1:09:20  Jill D
  9. 1:11:01  Betsy M
Board Games (Springbok)
  1. 1:12:04  Kim H
  2. 1:15:36  Yvonne F
  3. 1:24:11  Jules F
  4. 1:26:28  Jonathan C
  5. 1:30:16  Phoebe W
  6. 2:42:13  Rose B
Bookish Cats (Mudpuppy)
  1. 0:51:48  Yvonne F
  2. ​0:55:56  Amber H
  3. 0:59:56  Andrea K
  4. 1:00:21  Valerie D
  5. 1:15:22  Betsy P
  6. 1:20:08  Chris B
  7. 1:21:25  Betsy M
  8. 1:32:35  Valerie C
Cat Zodiac (Galison)
  1. 0:52:23  Robin D
  2. ​0:56:45  Amber H
  3. 0:58:30  Tracy F
  4. 0:58:46  Cleo V
  5. 1:13:48  Jessica G
  6. 1:15:21  Kim H
  7. 1:33:23  Chris B
Cosmic Lights (Galison)
  1. 1:10:11  Ann Marie G
  2. 1:12:13  Yvonne F
  3. 1:14:21  Kara T
  4. 1:18:52  Amber H
  5. 1:38:45  Jill D
  6. 1:46:49  Jessica G
Cozy Retreat (Ravensburger)
  1. 0:57:48  Yvonne F
  2. 0:57:49  Tammy M
  3. 0:58:13  Andrew B
  4. ​1:04:19  Noelle M
  5. 1:07:49  Kara C
  6. 1:11:15  Alyssa Z
  7. 1:13:56  Sarah B
  8. 1:20:32  Kim D
  9. 1:23:06  Amber H
  10. 2:08:42  Adriana C
Crystals (Galison)
  1. 0:44:41  Tammy M
  2. 0:55:12  Theresa M
  3. 1:02:24  Yvonne F
  4. 1:10:20  Noelle M
  5. 1:11:23  Alyssa Z
  6. 1:28:51  Leah B
  7. 2:10:00  Rose B
Cupcakes (Galison)
  1. 0:48:58  Grey R
  2. 0:52:08  Robin D
  3. 1:05:01  Linnzi M
  4. 1:13:17  Phoebe W
  5. 1:14:22  Kimberly H
  6. 1:16:38  Kara C
  7. 1:36:14  Jules F
Donuts (Galison)
  1. 0:49:42  Yvonne F
  2. 0:53:24  Theresa M
  3. 1:03:12  Jules F
  4. 1:05:40  Kara C
  5. 1:14:31  Brittany Y
Donuts n' Coffee (Springbok)
  1. 1:05:45  Yvonne F
  2. 1:06:28  Faith T
  3. 1:13:23  Linnzi M
  4. 1:20:26  Jonathan C
  5. 1:27:54  Kimberly H
  6. 1:28:58  Phoebe W
  7. 1:43:28  Jules F
  8. ​1:56:43  Allison T
  9. 2:40:33  Kim C
Dragon Kingdom (Eurographics)
  1. 1:09:55  Sarah O
  2. 1:10:34  Robin D
  3. 1:11:19  Kelly B
  4. 1:13:29  Dawne R
  5. 1:18:58  Noelle M
  6. 1:22:13  Tammy M
  7. 2:32:54  Chris B
Floral Reflections (Ravensburger)
  1. 1:03:23  Andrew B
  2. 1:04:37  Jessica B
  3. 1:18:48  Yvonne F
  4. 1:23:29  Phoebe W
  5. ​1:25:46  Jonathan C
  6. 1:27:14  Tammy M
  7. 1:31:21  Linnzi M
  8. 1:50:33  Chris B
  9. 2:07:17  Eirene K
King, The (Buffalo)
  1. 1:19:43  Andrew B
  2. 1:33:23  Tamara D
  3. 1:33:40  Yvonne F
  4. 1:54:07  Kara C
  5. 2:19:39  Jonathan C
  6. 2:23:15  Yolanda F
Kitschy Kitchen (Ravensburger)
  1. 1:00:56  Yvonne F
  2. 1:05:11  Tammy M
  3. 1:15:05  Kara C
  4. 1:22:21  Andrew B
  5. 3:14:23  Allison L
Ornaments (Galison)
  1. 1:14:11  Noelle M
  2. 1:15:35  Yvonnie F
  3. 1:29:22  Jules F
  4. 1:32:39  Kara C
  5. 1:58:10  Chris B
Pencil Pushers (Springbok)
  1. 0:51:38  Josh T
  2. 0:59:17  Sarah O
  3. 1:05:05  Yvonne F
  4. 1:07:08  Mary M
  5. 1:09:46  Amber H
  6. ​1:13:14  Alyssa Z
  7. 1:15:46  Yolanda F
  8. 1:17:34  Jessica G
  9. 1:18:37  Kait M
  10. 1:23:28  Phoebe W
  11. 1:25:20  Jules F
  12. 1:28:16  Leah B
  13. 1:32:41  Chris B
  14. 1:41:13  Brenna K
Pet Portraits (Mudpuppy)
  1. 1:05:24  Melissa N
  2. 1:12:04  Claire T
  3. 1:15:02  Michelle K
  4. 1:16:43  Phoebe W
  5. 1:18:55  Kimberly H
  6. 1:22:14  Jonathan C
Popsicles (Galison)
  1. 0:53:50  Yvonne F
  2. 1:07:35  Sarah O
  3. 1:29:02  Chris B
  4. ​2:11:37  Kris H
  5. 2:35:26  Sara W
  6. 3:14:55  Deborah H
Rainbow Donuts (Good Puzzle Co)
  1. 0:42:00  Sarah S
  2. 0:46:15  Sarah O
  3. 0:47:23  Melinda W
  4. 0:50:57  Kara T
  5. 1:00:14  Jonathan C
  6. 1:04:06  Alyssa Z
  7. 1:14:36  Karsten A
Sewing Box, The (Springbok)
  1. 1:15:18  Robin D
  2. 1:22:18  Amber H
  3. 1:44:24  Jonathan C
  4. 1:45:53  Phoebe W
  5. 2:05:43  Chris B
  6. 2:14:41  Brenna K
  7. 3:17:27  Kim C
Soda Bottle Caps (Buffalo)
  1. 0:54:12  Kara C
  2. ​1:01:08  Tammy M
  3. 1:02:16  Valerie C
  4. 1:03:27  Yvonne F
  5. 1:04:37  Andrew B
  6. 1:30:40  Jonathan C
  7. 1:31:05  Tamara D
Supreme (The Found)
  1. 1:06:05  Yvonne F
  2. 1:12:09  Robin D
  3. ​1:13:07  Faith T
  4. 1:20:25  Tammy M
  5. 1:29:35  Betsy P
  6. 1:35:27  Jules F
  7. 1:53:46  Phoebe W
Toy Animals (Galison)
  1. 1:02:09  Faith T
  2. 1:08:42  Kimberly H
  3. 1:09:31  Amber H
  4. 1:20:08  Phoebe W
  5. 1:24:33  Jonathan C
  6. 1:30:17  Jessica G
  7. 1:56:14  Jules F
  8. 3:11:11  Sara W
Twist of Color (Springbok)
  1. 1:35:37  Jonathan C
  2. 1:44:17  Sarah B
  3. 1:51:56  Linnzi M
  4. 2:01:18  Phoebe W
  5. 2:25:19  Jessica G
  6. 2:26:32  Jules F
Vineyard Retreat (Springbok)
  1. 1:03:31  Andrew B
  2. 1:08:47  Kara T
  3. 1:12:22  Yvonne F
  4. 1:25:52  Kara C
  5. 1:38:07  Jessica G
  6. 1:49:42  Jules F
Whistle Stop Christmas (Buffalo)
  1. 0:59:47  Yvonne F
  2. 1:09:25  Andrew B
  3. 1:24:19  Kara C
  4. 1:25:00  Paige B
  5. 1:27:30  Stephanie P
  6. 1:35:25  Tammy M
  7. 1:48:29  Chris B
Wonder & Bloom (Galison)
  1. 0:59:14  Sarah S
  2. 1:11:14  Tammy M
  3. 1:13:45  Yvonne F
  4. 1:18:20  Kara T
  5. ​1:36:00  Isabel U
  6. 2:02:35  Chris B
  7. 2:37:58  Rose B
1000 Pieces
(6 puzzles so far)
Beauty Guru (Buffalo)
  1. 2:19:40  Faith T
  2. 2:43:42  Yvonne F
  3. 2:50:26  Tammy M
  4. 2:55:09  Jonathan C
  5. 6:16:52  Rose B
Best Sellers (White Mountain)
  1. 1:50:56  Tammy D
  2. 2:18:43  Sarah B
  3. 3:04:25  Jonathan C
  4. 3:34:07  Karsten A
  5. 4:34:20  Rose B
Ice Cream Dream (Lego)
  1. 2:39:17  Grey R
  2. 3:28:37  Mindy W
  3. 4:06:43  Jonathan C
  4. 4:26:35  Kimberly H
  5. 4:32:57  Sarah B
Ideal Bookshelf (Galison)
  1. 2:42:29  Sarah O
  2. 3:00:09  Tammy M
  3. 4:10:26  Noelle M
  4. 5:18:46  Sara W
  5. 5:26:31  Lawren D
  6. 6:44:21  Rose B
Magical Potions (Ravensburger)
  1. 2:12:31  Lauren K
  2. 2:23:35  Yvonne F
  3. 2:54:35  Alyssa Z
  4. 3:16:58  Linnzi M
  5. 4:14:19  Brenna K
Mystic Maze, The (Magic Puzzle Company)
  1. 3:25:30  Yvonne F
  2. 3:51:16  Kevin T
  3. 4:10:18  Ann Marie G
  4. 4:55:15  Isabel B
  5. 5:14:12  Tracy F
  6. 5:46:53  Stephanie P
Photo from wuestenigel