1- 916852: 509
* 67th in Codeforces Round #137 (Div. 2): +139 (from 1553 to 1692)
* 10th in Codeforces Round #138 (Div. 2): +78 (from 1692 to 1770)
* 87th in Codeforces Round #140 (Div. 1): +103 (from 1770 to 1873)

2- MinakoKojima: 500
* 67th in Codeforces Round #138 (Div. 1): +121 (from 1772 to 1893)
* 23rd in Codeforces Round #140 (Div. 1): +129 (from 1893 to 2022)

3- gchebanov: 468
* 25th in Codeforces Round #138 (Div. 1): +105 (from 2009 to 2114)
* 7th in Codeforces Round #140 (Div. 1): +99 (from 2114 to 2213)

4- azizkhan: 459
* 11th in Codeforces Round #138 (Div. 1): +139 (from 1914 to 2053)
* 50th in Codeforces Round #140 (Div. 1): +61 (from 2053 to 2114)

5- bayleef: 422
* 17th in Codeforces Round #138 (Div. 1): +103 (from 2058 to 2161)
* 13th in Codeforces Round #140 (Div. 1): +81 (from 2161 to 2242)

You can check how are the above scores calculated here: http://codeforces.net/blog/entry/5169