ATP Rankings, Biggest Drop (Week)
The change is calculated from week to week.
Jan 20, 2020
| # | Player | Var/Week | Var/Jan. 1 | Var/6M | |
| 1855 | Pelle Boerma(GER) | 37 | 37 | 1169 | Graph |
| 1889 | Bora Sengul(TUR) | 36 | 37 | 1203 | Graph |
| 1521 | Nemanja Malesevic(BIH) | 26 | 24 | 835 | Graph |
| 1347 | Loic Ratsaratany(FRA) | 20 | 17 | 661 | Graph |
| 1546 | Maxence Beauge(FRA) | 15 | 14 | 860 | Graph |
| 1338 | Vladislav Ivanov(RUS) | 15 | 11 | 652 | Graph |
| 1544 | Ameur Ben Hassen(TUN) | 14 | 13 | 858 | Graph |
| 1556 | Ken Onishi(JPN) | 12 | 24 | 870 | Graph |
| 924 | Hugo Schott(FRA) | 12 | 9 | 238 | Graph |
| 928 | Simon Beaupain(BEL) | 11 | 9 | 242 | Graph |
| 927 | Sarp Agabigun(TUR) | 11 | 9 | 241 | Graph |
| 1405 | Jake Delaney(AUS) | 10 | 12 | 719 | Graph |
| 930 | Matvey Minin(RUS) | 9 | 7 | 244 | Graph |
| 929 | Franco Feitt(ARG) | 9 | 7 | 243 | Graph |
| 1139 | Nitin Kumar Sinha(IND) | 8 | 51 | 453 | Graph |
| 1097 | Wei-De Lin(TPE) | 8 | 1 | 411 | Graph |
| 988 | Min-Kyu Song(KOR) | 8 | 4 | 395 | Graph |
| 923 | Zachary Svajda(USA) | 8 | 9 | 237 | Graph |
| 922 | Kenneth Raisma(EST) | 8 | 5 | 236 | Graph |
| 921 | Giacomo Dambrosi(ITA) | 8 | 5 | 235 | Graph |
| 919 | Uisung Park(KOR) | 8 | 6 | 233 | Graph |
| 918 | Mick Lescure(FRA) | 8 | 6 | 232 | Graph |
| 917 | Pascal Meis(GER) | 8 | 6 | 231 | Graph |
| 916 | Matheus Pucinelli De Almeida(BRA) | 8 | 6 | 230 | Graph |
| 915 | Jung-Woong Na(KOR) | 8 | 71 | 229 | Graph |
| 914 | Billy Harris(GBR) | 8 | 5 | 228 | Graph |
| 913 | Martin Damm(USA) | 8 | 5 | 227 | Graph |
| 912 | Flavio Cobolli(ITA) | 8 | 5 | 226 | Graph |
| 911 | Anis Ghorbel(TUN) | 8 | 5 | 225 | Graph |
| 1288 | Jayden Court(AUS) | 7 | 3 | 602 | Graph |
| 1239 | Karol Drzewiecki(POL) | 7 | 2 | 553 | Graph |
| 998 | Luigi Sorrentino(ITA) | 7 | 5 | 312 | Graph |
| 995 | Lucas Gomez(MEX) | 7 | 3 | 504 | Graph |
| 935 | Sergi Perez Contri(ESP) | 7 | 4 | 249 | Graph |
| 934 | Simon Anthony Ivanov(BUL) | 7 | 4 | 248 | Graph |
| 933 | Sidane Pontjodikromo(NED) | 7 | 5 | 247 | Graph |
| 932 | Alex Blumenberg(BRA) | 7 | 5 | 246 | Graph |
| 931 | Max Houkes(NED) | 7 | 5 | 245 | Graph |
| 926 | Rishab Agarwal(IND) | 7 | 5 | 240 | Graph |
| 925 | Juan Pablo Paz(ARG) | 7 | 5 | 239 | Graph |
| 909 | Yanais Laurent(FRA) | 7 | 4 | 223 | Graph |
| 908 | Rhett Purcell(NZL) | 7 | 21 | 222 | Graph |
| 871 | Gerard Granollers(ESP) | 7 | 195 | 441 | Graph |
| 494 | Petros Chrysochos(CYP) | 7 | 3 | 12 | Graph |
| 493 | Gage Brymer(USA) | 7 | 3 | 193 | Graph |
| 347 | Raul Brancaccio(ITA) | 7 | 1 | 3 | Graph |
| 304 | Ryan Harrison(USA) | 7 | 2 | 168 | Graph |
| 303 | Nicolas Alvarez(PER) | 7 | 2 | 228 | Graph |
| 302 | Orlando Luz(BRA) | 7 | 2 | 139 | Graph |
| 296 | Facundo Arguello(ARG) | 7 | 1 | 120 | Graph |
| 1155 | Congsup Congcar(THA) | 6 | 1 | 469 | Graph |
| 981 | Sem Verbeek(NED) | 6 | 176 | 444 | Graph |
| 942 | Andrea Bolla(ITA) | 6 | 2 | 256 | Graph |
| 941 | Igor Marcondes(BRA) | 6 | 2 | 255 | Graph |
| 940 | Aziz Kijametovic(BIH) | 6 | 2 | 254 | Graph |
| 939 | Edris Fetisleam(ROU) | 6 | 2 | 253 | Graph |
| 938 | Nathan Seateun(FRA) | 6 | 2 | 252 | Graph |
| 937 | Maxime Mora(FRA) | 6 | 3 | 251 | Graph |
| 936 | Aziz Ouakaa(TUN) | 6 | 3 | 250 | Graph |
| 905 | Koray Kirci(TUR) | 6 | 1 | 219 | Graph |
| 904 | Vladimir Korolev(RUS) | 6 | 1 | 218 | Graph |
| 903 | Saida'lo Saidkarimov(UZB) | 6 | 1 | 287 | Graph |
| 902 | Luca Gelhardt(GER) | 6 | 1 | 216 | Graph |
| 722 | Cayetano March(ECU) | 6 | 3 | 36 | Graph |
| 721 | Sergey Fomin(UZB) | 6 | 3 | 77 | Graph |
| 720 | Kristjan Tamm(EST) | 6 | 3 | 34 | Graph |
| 711 | Harrison Adams(USA) | 6 | 1 | 258 | Graph |
| 710 | Mateus De Carvalho Cardoso Alves(BRA) | 6 | 1 | 24 | Graph |
| 709 | Kelsey Stevenson(CAN) | 6 | 1 | 23 | Graph |
| 708 | Nicolas Alvarez Varona(ESP) | 6 | 1 | 22 | Graph |
| 707 | Ezekiel Clark(USA) | 6 | 21 | Graph | |
| 706 | Franko Skugor(CRO) | 6 | 314 | Graph | |
| 705 | Simone Roncalli(ITA) | 6 | 19 | Graph | |
| 704 | Paul Woerner(GER) | 6 | 18 | Graph | |
| 491 | Jorge Panta(PER) | 6 | 3 | 195 | Graph |
| 490 | Ricardo Ojeda Lara(ESP) | 6 | 11 | 67 | Graph |
| 488 | Alexander Zhurbin(RUS) | 6 | 2 | 39 | Graph |
| 487 | Benjamin Lock(ZIM) | 6 | 2 | 69 | Graph |
| 486 | Quentin Robert(FRA) | 6 | 2 | 130 | Graph |
| 485 | Jacopo Berrettini(ITA) | 6 | 2 | 82 | Graph |
| 351 | Daniel Nguyen(USA) | 6 | 16 | 18 | Graph |
| 350 | Rogerio Dutra Silva(BRA) | 6 | 114 | 123 | Graph |
| 349 | Maxime Hamou(FRA) | 6 | 1 | 216 | Graph |
| 348 | Laurent Lokoli(FRA) | 6 | 1 | 115 | Graph |
| 298 | Pedro Sakamoto(BRA) | 6 | 10 | 73 | Graph |
| 297 | Manuel Guinard(FRA) | 6 | 42 | Graph | |
| 294 | Nino Serdarusic(CRO) | 6 | 16 | 22 | Graph |
| 293 | Markus Eriksson(SWE) | 6 | 153 | Graph | |
| 291 | Tim Van Rijthoven(NED) | 6 | 119 | Graph | |
| 290 | Marc-Andrea Huesler(SUI) | 6 | 13 | 19 | Graph |
| 1226 | Hanyi Liu(CHN) | 5 | 540 | Graph | |
| 1000 | Mikalai Haliak(BLR) | 5 | 2 | 314 | Graph |
| 999 | Aaron Schmid(SUI) | 5 | 2 | 313 | Graph |
| 992 | Matyas Fuele(HUN) | 5 | 1 | 306 | Graph |
| 991 | Dragos Constantin Ignat(ROU) | 5 | 1 | 305 | Graph |
| 979 | Pierre Faivre(FRA) | 5 | 293 | Graph | |
| 978 | Taha Baadi(CAN) | 5 | 292 | Graph | |
| 977 | Cengiz Aksu(TUR) | 5 | 291 | Graph | |
| 976 | Wojciech Marek(POL) | 5 | 2 | 290 | Graph |
| 975 | Karue Sell(BRA) | 5 | 2 | 289 | Graph |
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