https://phletresults.blogspot.com/
The September 2017 LET passers are those who obtained an average rating of not less than 75% and have no rating lower than 50% in any of the subjects.

PRC administered the LET board exam on September 24, 2017 in at least 27 testing centers around the country and in Hong Kong and Bangkok (Special Professional Licensure Examination or SPLE).

Testing centers include Baguio, Bacolod, Cagayan de Oro (CDO), Catarman (Northern Samar), Cebu, Davao, General Santos, Iloilo, Laoag, Legaspi, Lucena, Manila, Rosales (Pangasinan), Tacloban, Tuguegarao, Pagadian and Zamboanga.

Meanwhile, PRC designated additional test centers per requests of local government units and recommendation of the Board in accordance with Resolution No. 2017-1047 — Mamburao, Occidental Mindoro; Calapan City, Oriental Mindoro; Odiongan, Romblon; Kidapawan Cotabato, Boac, Marinduque; Virac, Catanduanes; Puerto Princesa City, Palawaan and Masbate City.

Here's the overview of previous LET board exam - Elementary level:

Exam Date	Total Examinees	Total Passers	Passing Rate	Days before results release
March 26, 2017	53,915	5,600	10.39%	40
September 25, 2016	77,466	23,378	30.18%	48
March 20, 2016	42,739	12,128	28.38%	41
September 27, 2015	68,442	21,461	31.36%	48
March 29, 2015	44,144	12,103	27.42%	38
August 17, 2014	70,786	25,301	35.74%	51
January 26, 2014	38,377	11,120	28.98%	32
September 29, 2013	62,160	19,384	31.18%	40
March 10, 2013	37,117	10,310	27.78%	27