ATP Rankings, Biggest Drop (6 months)
The change is calculated over the past 6 months.
May 20, 2013
| # | Player | Var/Week | Var/Jan. 1 | Var/6M | |
| 1967 | Yu Cheng Li(CHN) | 11 | 1089 | 1097 | Graph |
| 1947 | Roel Oostdam(NED) | 11 | 571 | 1026 | Graph |
| 1990 | Marvin Barker(NZL) | 412 | 989 | 999 | Graph |
| 1983 | Ya-Nan Ma(CHN) | 8 | 948 | 955 | Graph |
| 1599 | Karan Rastogi(IND) | 18 | 864 | 897 | Graph |
| 1599 | Rudolf Siwy(CZE) | 18 | 272 | 842 | Graph |
| 1908 | James Feaver(GBR) | 28 | 630 | 838 | Graph |
| 1798 | Matthias Kolbe(GER) | 18 | 686 | 819 | Graph |
| 1858 | Pedro Dumont(BRA) | 9 | 803 | 806 | Graph |
| 1908 | Nian Feng(CHN) | 5 | 794 | 801 | Graph |
| 1339 | Alexey Kedryuk(KAZ) | 19 | 733 | 734 | Graph |
| 1947 | Alessandro-Damiano Ventre(BRA) | 9 | 403 | 693 | Graph |
| 1858 | Agustin Boje-Ordonez(ESP) | 9 | 662 | 663 | Graph |
| 1908 | Massimo Capone(ITA) | 393 | 630 | 630 | Graph |
| 1798 | Haydn Lewis(BAR) | 18 | 628 | 625 | Graph |
| 1858 | Jun-Chao Xu(CHN) | 9 | 605 | 594 | Graph |
| 768 | Juan Ignacio Chela(ARG) | 102 | 592 | 592 | Graph |
| 1947 | Alejandro Poberaj(ARG) | 11 | 567 | 587 | Graph |
| 1422 | Daniiar Duldaev(KGZ) | 486 | 552 | 578 | Graph |
| 1598 | Andres Ceppo(ARG) | 18 | 453 | 561 | Graph |
| 1302 | Nicholas Monroe(USA) | 14 | 541 | 543 | Graph |
| 1221 | Mikhail Elgin(RUS) | 7 | 763 | 542 | Graph |
| 1908 | Saar Steele(ISR) | 5 | 525 | 540 | Graph |
| 1532 | Daniel Stahl(USA) | 17 | 507 | 518 | Graph |
| 1695 | Ilya Belyaev(RUS) | 85 | 517 | 517 | Graph |
| 1411 | Martin Cuevas(URU) | 16 | 129 | 510 | Graph |
| 1532 | Javier Munoz(CHI) | 17 | 331 | 509 | Graph |
| 1858 | Weerapat Doakmaiklee(THA) | 9 | 341 | 508 | Graph |
| 1599 | Alexandre Lacroix(FRA) | 18 | 370 | 498 | Graph |
| 1419 | Vitali Reshetnikov(RUS) | 14 | 416 | 490 | Graph |
| 1798 | Carlos Gonzalez-Leiva(CHI) | 18 | 10 | 477 | Graph |
| 1120 | Deniss Pavlovs(LAT) | 11 | 453 | 461 | Graph |
| 1550 | Hiromasa Oku(JPN) | 17 | 446 | 450 | Graph |
| 1979 | Harry David Meehan(GBR) | 12 | 435 | 449 | Graph |
| 1368 | Florian Fallert(GER) | 15 | 442 | 448 | Graph |
| 1510 | Maximilian Wilde(GER) | 22 | 147 | 448 | Graph |
| 1798 | Ty Trombetta(USA) | 51 | 53 | 448 | Graph |
| 1986 | Ignacio Lehyt(CHI) | 9 | 3 | 443 | Graph |
| 1599 | Andrew Harris(AUS) | 18 | 448 | 439 | Graph |
| 1908 | Samuel Ribeiro Navarrete(ESP) | 5 | 423 | 431 | Graph |
| 1908 | David Mushayev(ISR) | 5 | 423 | 431 | Graph |
| 1222 | Maverick Banes(AUS) | 6 | 414 | 426 | Graph |
| 1381 | Gerard Gallego-Bertran(ESP) | 1 | 418 | 423 | Graph |
| 1402 | Vahid Mirzadeh(USA) | 154 | 412 | 421 | Graph |
| 1356 | Lennert Van Der Linden(NED) | 18 | 402 | 413 | Graph |
| 1967 | Anastasios Pavlis(GRE) | 31 | 387 | 410 | Graph |
| 1226 | Hsin-Han Lee(TPE) | 6 | 405 | 408 | Graph |
| 1052 | Franck Pepe(FRA) | 6 | 401 | 405 | Graph |
| 1947 | Serizhan Yessenbekov(KAZ) | 11 | 6 | 403 | Graph |
| 671 | Augustin Gensse(FRA) | 4 | 394 | 397 | Graph |
| 1255 | Carlos Poch-Gradin(ESP) | 6 | 388 | 393 | Graph |
| 1402 | Loic Perret(SUI) | 16 | 375 | 392 | Graph |
| 1908 | Marcos Esparcia Omedas(ESP) | 5 | 376 | 392 | Graph |
| 1908 | He Feng(CHN) | 5 | 351 | 392 | Graph |
| 1339 | Nima Roshan(AUS) | 19 | 279 | 389 | Graph |
| 1858 | Fedor Doudtchik(BLR) | 9 | 373 | 381 | Graph |
| 1858 | Alan Bevan(GBR) | 9 | 373 | 381 | Graph |
| 1160 | Adam Sanjurjo Hermida(ESP) | 7 | 379 | 378 | Graph |
| 1017 | John Peers(AUS) | 3 | 369 | 375 | Graph |
| 1348 | Hong Chung(KOR) | 119 | 368 | 374 | Graph |
| 1218 | Marko Danis(SVK) | 67 | 346 | 373 | Graph |
| 1695 | Ben Wagland(AUS) | 85 | 358 | 358 | Graph |
| 1908 | Sebastien Vidal(GUA) | 28 | 338 | 357 | Graph |
| 985 | Denes Lukacs(HUN) | 7 | 355 | 354 | Graph |
| 1531 | Konstantin Gerlakh(RUS) | 19 | 343 | 353 | Graph |
| 1798 | Lukas Vrnak(CZE) | 18 | 10 | 352 | Graph |
| 1798 | Nelio Mattos(BRA) | 331 | 340 | 352 | Graph |
| 1378 | Daniel Yoo(KOR) | 16 | 342 | 351 | Graph |
| 1695 | Rhys Michael Johnson(AUS) | 85 | 358 | 345 | Graph |
| 929 | Joshua Zavala(USA) | 48 | 212 | 341 | Graph |
| 921 | Morgan Phillips(GBR) | 19 | 336 | 340 | Graph |
| 1348 | Victor Kozin(RUS) | 21 | 323 | 334 | Graph |
| 1402 | Vladislav Dubinsky(RUS) | 16 | 214 | 334 | Graph |
| 1288 | Joshua Jones(GBR) | 86 | 319 | 326 | Graph |
| 631 | Evgeny Kirillov(RUS) | 149 | 318 | 320 | Graph |
| 1858 | Omar Awadhy(UAE) | 9 | 301 | 319 | Graph |
| 717 | Gleb Sakharov(FRA) | 2 | 282 | 310 | Graph |
| 1269 | Alessandro Colella(ITA) | 11 | 303 | 307 | Graph |
| 978 | Kevin Botti(FRA) | 41 | 297 | 302 | Graph |
| 1858 | Ivan Polyakov(RUS) | 78 | 278 | 301 | Graph |
| 1858 | Serge Becerra Jeria(CHI) | 9 | 7 | 301 | Graph |
| 1459 | Harrison Adams(USA) | 18 | 300 | 299 | Graph |
| 905 | Takao Suzuki(JPN) | 6 | 45 | 297 | Graph |
| 1049 | Daniel Geib(AUT) | 5 | 291 | 297 | Graph |
| 950 | Marcel Zimmermann(GER) | 6 | 285 | 293 | Graph |
| 928 | Catalin-Ionut Gard(ROU) | 115 | 294 | 291 | Graph |
| 1024 | Mark Verryth(AUS) | 2 | 288 | 291 | Graph |
| 1391 | Soren Wedege(DEN) | 209 | 276 | 282 | Graph |
| 676 | Enrico Burzi(ITA) | 11 | 182 | 281 | Graph |
| 572 | Arnaud Clement(FRA) | 46 | 277 | 279 | Graph |
| 387 | Igor Andreev(RUS) | 2 | 277 | 277 | Graph |
| 1695 | Patrick Elias(GER) | 18 | 260 | 277 | Graph |
| 873 | Dieter Kindlmann(GER) | 2 | 272 | 276 | Graph |
| 1289 | Gregoire Barrere(FRA) | 14 | 265 | 276 | Graph |
| 546 | Alexander Kudryavtsev(RUS) | 61 | 271 | 275 | Graph |
| 1550 | Daniel Berta(SWE) | 187 | 159 | 275 | Graph |
| 799 | Denis Gremelmayr(GER) | 1 | 261 | 267 | Graph |
| 1482 | Masatoshi Miyazaki(JPN) | 15 | 201 | 265 | Graph |
| 1402 | Matias Salinas(ARG) | 16 | 191 | 263 | Graph |
| 1396 | Federico Torresi(ITA) | 136 | 259 | 259 | Graph |












