As we ring in the new year let's take a look at the most tested athletes in 2017 according to USADA.
Note: Data is as of Dec 27th, 2017
Top Tested Athletes (All Sports)
| # Tests | Athlete | Sport |
| 16 | Nathan Adrian | Swimming |
| 16 | Shani Davis | Speedskating |
| 16 | Galen G Rupp | Track and Field |
| 15 | Kathleen Ledecky | Swimming |
| 14 | TJ Dillashaw | Mixed Martial Arts |
| 14 | Holly Holm | Mixed Martial Arts |
| 14 | Lopez Lomong | Track and Field |
| 14 | Aries Merritt | Track and Field |
| 14 | Heather Richardson Bergsma | Speedskating |
| 14 | Dathan J Ritzenhein | Track and Field |
| 14 | Mikaela Shiffrin | Skiing and Snowboarding |
| 14 | Tecia Torres | Mixed Martial Arts |
| 13 | Vitor Belfort | Mixed Martial Arts |
| 13 | Ray Borg | Mixed Martial Arts |
| 13 | Brittany Bowe | Speedskating |
| 13 | Katherine E Compton | Cycling |
| 13 | Daniel R Cormier | Mixed Martial Arts |
| 13 | Justin A Gatlin | Track and Field |
| 13 | Evan Jager | Track and Field |
| 13 | Cristiane Justino | Mixed Martial Arts |
| 13 | Floyd Mayweather | Professional Boxing |
| 13 | Brittney Reese | Track and Field |
| 13 | Anderson Silva | Mixed Martial Arts |
| 13 | Jeremy Stephens | Mixed Martial Arts |
Track & Field Athletes w/ Two or More Tests
| # Tests | Athlete |
| 16 | Galen G Rupp |
| 14 | Lopez Lomong |
| 14 | Aries Merritt |
| 14 | Dathan J Ritzenhein |
| 13 | Justin A Gatlin |
| 13 | Evan Jager |
| 13 | Brittney Reese |
| 12 | Shalane G Flanagan |
| 12 | Tyson Gay |
| 12 | Bernard Lagat |
| 12 | Ajee Wilson |
| 11 | Matthew Centrowitz |
| 11 | Allyson M Felix |
| 11 | Jordan Hasay |
| 11 | Treniere Moser |
| 10 | Abdihakim M Abdirahman |
| 10 | Mebrahtom R Keflezighi |
| 9 | Tori Bowie |
| 9 | Fernando Cabada |
| 9 | Molly Huddle |
| 8 | Walter Dix |
| 8 | Sandi Morris |
| 8 | Jason A Richardson |
| 7 | Amy E Cragg |
| 7 | Sharon E Day-Monroe |
| 7 | English Gardner |
| 7 | Leonard Korir |
| 7 | Joseph Kovacs |
| 7 | John H Nunn |
| 7 | Luke Puskedra |
| 7 | Aliphine Tuliamuk-Bolton |
| 6 | Tianna T Bartoletta |
| 6 | Chris Benard |
| 6 | Gwen Berry |
| 6 | Amber J Campbell |
| 6 | Michelle Carter |
| 6 | William Claye |
| 6 | Hannah Fields |
| 6 | Natasha Hastings |
| 6 | Erik Kynard Jr. |
| 6 | Katherine Mackey |
| 6 | Inika McPherson |
| 6 | David Oliver |
| 6 | Jasmine Stowers |
| 6 | Jennifer Suhr |
| 6 | Ryan Whiting |
| 6 | Kara Winger (Patterson) |
| 6 | Izaic Yorks |
| 5 | Trayvon Bromell |
| 5 | Omar Craddock |
| 5 | Chris Derrick |
| 5 | Courtney Frerichs |
| 5 | Dawn Harper-Nelson |
| 5 | Kendra Harrison |
| 5 | Queen Harrison |
| 5 | Jeffrey Henderson |
| 5 | Bershawn D Jackson |
| 5 | Brannon Kidder |
| 5 | Shadrack Kipchirchir |
| 5 | Stanley Kipkoech Kebenei |
| 5 | Desiree Linden |
| 5 | Shamier Little |
| 5 | Hassan Mead |
| 5 | LaShawn L Merritt |
| 5 | Christian Taylor |
| 5 | John Teeters |
| 5 | Drew Windle |
| 4 | Morolake Akinosun |
| 4 | Whitney Ashley |
| 4 | Mikele Barber |
| 4 | Boris Berian |
| 4 | Hillary Bor |
| 4 | Rodney Brown |
| 4 | Kerron Clement |
| 4 | Emma Coburn |
| 4 | Marquis Dendy |
| 4 | Johnny Dutch |
| 4 | Sara Hall |
| 4 | Garrett Heath |
| 4 | Lauren Johnson |
| 4 | Sam Gavin Kendricks |
| 4 | Trell Kimmons |
| 4 | Charlene Lipsey |
| 4 | Casimir Loxsom |
| 4 | Miranda Melville |
| 4 | Sharika Nelvis |
| 4 | Keturah Orji |
| 4 | Deanna Price |
| 4 | Michael E Rodgers |
| 4 | Natosha Rogers |
| 4 | Brianna Rollins |
| 4 | Shannon Rowbury |
| 4 | Jennifer Simpson |
| 4 | Deajah Stevens |
| 4 | Cassandra Tate |
| 4 | Benjamin True |
| 4 | Shaquille Walker |
| 4 | Jared Ward |
| 4 | Kendell Williams |
| 3 | Valarie Allman |
| 3 | Ryan Bailey |
| 3 | Shadrack Kiptoo Biwott |
| 3 | Erica Bougard |
| 3 | Dezerea Bryant |
| 3 | Daniella Bunch Hill |
| 3 | Katie Burnett |
| 3 | Jillian Camarena-Williams |
| 3 | Chris Carter |
| 3 | Kori Carter |
| 3 | Michael Cherry |
| 3 | Nick Christie |
| 3 | Christian Coleman |
| 3 | Emmanuel Corvera |
| 3 | Liz Costello |
| 3 | Vashti Cunningham |
| 3 | Sean Donnelly |
| 3 | Magdalyn Ewen |
| 3 | Scott Fauble |
| 3 | Mason E Finley |
| 3 | Lindsay Flanagan |
| 3 | Phyllis Francis |
| 3 | Tori Franklin |
| 3 | Kara Goucher |
| 3 | John Gregorek |
| 3 | Elijah Hall-Thompson |
| 3 | Quanera Hayes |
| 3 | Ryan Hill |
| 3 | Mark Hollis |
| 3 | Timothy Holmes |
| 3 | Cyrus Hostetler |
| 3 | Shelby Houlihan |
| 3 | Marisa Howard |
| 3 | Ariana Ince |
| 3 | Emily Infeld |
| 3 | Andrew Irwin |
| 3 | Eric Jenkins |
| 3 | Carmelita Jeter |
| 3 | Felisha Johnson |
| 3 | Kibwe R Johnson |
| 3 | Heather Kampf |
| 3 | Fred Kerley |
| 3 | Devin King |
| 3 | Christopher Landry |
| 3 | Jarrion Lawson |
| 3 | Gia Lewis-Smallwood |
| 3 | Christina Manning |
| 3 | Bryan McBride |
| 3 | Maria L Michta-Coffey |
| 3 | Baylee Mires |
| 3 | Elizabeth Patterson |
| 3 | Kaysee Pilgrim |
| 3 | Adriana Pirtea-Nelson |
| 3 | Colleen Quigley |
| 3 | Monique Riddick |
| 3 | Gil S Roberts |
| 3 | Kurt Roberts |
| 3 | Ricky Robertson |
| 3 | Raven Saunders |
| 3 | Donald Scott |
| 3 | Damarcus Simpson |
| 3 | Brittany Smith |
| 3 | Wallace N Spearmon, Jr. |
| 3 | Neely Spence Gracey |
| 3 | Shelbi Vaughan |
| 3 | Ameer Webb |
| 3 | Shakima Wimbley |
| 3 | Zachery Ziemek |
| 2 | Nia Ali |
| 2 | Devon Allen |
| 2 | Brendan Ames |
| 2 | Robert A Andrews |
| 2 | Ronnie R Ash |
| 2 | Joanna Atkins |
| 2 | Allex Austin |
| 2 | Jaylen Bacon |
| 2 | Ronnie Baker |
| 2 | William Barnes |
| 2 | Brigetta L Barrett |
| 2 | Steven Bastien |
| 2 | Andrew Bayer |
| 2 | Jessica Beard |
| 2 | April S Bennett |
| 2 | Amanda Bingson |
| 2 | Jazzelena Black |
| 2 | Zibby Boyer |
| 2 | Donavan Brazier |
| 2 | Aaliyah Brown |
| 2 | Hannah Carson |
| 2 | Kristi Castlin |
| 2 | Paul Chelimo |
| 2 | Kim Conley |
| 2 | Graham Crawford |
| 2 | Ryan Crouser |
| 2 | Logan Cunningham |
| 2 | Trey Cunningham |
| 2 | Kiya Dandena |
| 2 | Tara Davis |
| 2 | Janay Deloach |
| 2 | Stacey Destin |
| 2 | Riley Dolezal |
| 2 | Colin Dunbar |
| 2 | Kimberlyn Duncan |
| 2 | Chase Ealey |
| 2 | Amanda Eccleston |
| 2 | Kendall Ellis |
| 2 | Craig Engels |
| 2 | Juan Diego Estrada |
| 2 | Andrew Evans |
| 2 | Thomas FitzSimons Jr |
| 2 | Matthew Forgues |
| 2 | Bridget L Franek |
| 2 | Joe Frye |
| 2 | Eric Futch |
| 2 | Jordan Geist |
| 2 | Andrea Geubelle |
| 2 | Christopher Giesting |
| 2 | Kaitlin Goodman (Gregg) |
| 2 | Kate Grace |
| 2 | Emily Grove |
| 2 | Kate Hall |
| 2 | Marielle Hall |
| 2 | Quincy Hall |
| 2 | Daina Harper |
| 2 | Aleec Harris |
| 2 | Britney K Henry |
| 2 | Ashley N Higginson |
| 2 | Candace Hill |
| 2 | Darrell Hill |
| 2 | Scott Houston |
| 2 | Amber Hughes |
| 2 | Kylie Hutson |
| 2 | Derek Jacobus |
| 2 | Phillip Jagers |
| 2 | Kyra Jefferson |
| 2 | Alaysha Johnson |
| 2 | Janee' Kassanavoid |
| 2 | Shalaya Kipp |
| 2 | Desmond Lawrence |
| 2 | Lekeisha Lawson |
| 2 | Cory Leslie |
| 2 | Wilbert (Wil) London III |
| 2 | Augustus Maiyo |
| 2 | Michael G Mannozzi |
| 2 | Brenda Martinez |
| 2 | Francena McCorory |
| 2 | Cory McGee |
| 2 | Chantae McMillan |
| 2 | Jordan McNamara |
| 2 | Tony McQuay |
| 2 | Kyle Merber |
| 2 | Georganne Moline |
| 2 | Alysia J Montano |
| 2 | Dalilah Muhammad |
| 2 | Clayton Murphy |
| 2 | Bryshon Nellum |
| 2 | Christopher Nilsen |
| 2 | Barbara Nwaba |
| 2 | Matthew O'Neal |
| 2 | Courtney Okolo |
| 2 | Shannon Osika |
| 2 | Sarah Pagano |
| 2 | Barbara Pierre |
| 2 | Elizabeth Podominick |
| 2 | Jeff Porter |
| 2 | John Prader |
| 2 | Maya Pressley |
| 2 | Chanelle Price |
| 2 | Hunter Price |
| 2 | Laura Roesler |
| 2 | Clara Santucci (Grandt) |
| 2 | Claudia Saunders |
| 2 | Sha'keela Saunders |
| 2 | Stephanie Schappert |
| 2 | Lindsay Schwartz |
| 2 | Michael Shuey |
| 2 | Abbabiya Simbassa |
| 2 | Emily Sisson |
| 2 | Cristian Soratos |
| 2 | Jaide Stepter |
| 2 | Robyn Stevens |
| 2 | Michael Stigler |
| 2 | Sara Sutherland |
| 2 | Nick Symmonds |
| 2 | Curtis Thompson |
| 2 | Jessica Tonn |
| 2 | Jamiel Trimble |
| 2 | Tim Vanliew |
| 2 | Sara Vaughn |
| 2 | Nicholas Vena |
| 2 | Christina Vergara Aleshire |
| 2 | Rebecca Wade |
| 2 | Rebekah Wales |
| 2 | Adarius Washington |
| 2 | Ariana Washington |
| 2 | Alexis Weeks |
| 2 | Tori Weeks |
| 2 | Andrew Wheating |
| 2 | Brian Williams |
| 2 | Chrishuna Williams |
| 2 | Devon Williams |
| 2 | Harrison Williams |
| 2 | Luke Winder |
| 2 | Rudy Winkler |
| 2 | Alex Young |