| Game Date | Conference | Road Team | Score |
| Home Team | Score | Status | Box Score | Recap | Commentary |
| National Collegiate Baseball Writers Poll |
| 5/10/2009 | * | #1 North Carolina | 4 | at | NC State | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #2 UC Irvine | 6 | at | Pacific | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | UCF | 7 | at | #3 Rice | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #12 Florida | 9 | at | #4 LSU | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Winthrop | 0 | at | #5 Arizona State | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #6 Cal State Fullerton | 4 | at | #19 Cal Poly | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Mississippi State | 1 | at | #7 Mississippi | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #16 Texas A&M | 4 | at | #8 Texas | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #9 Florida State | 5 | at | #10 Georgia Tech | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #11 Arkansas | 5 | at | #26 Alabama | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Vanderbilt | 3 | at | #13 Georgia | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Duke | 1 | at | #14 Virginia | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Bethune-Cookman | 5 | at | #15 Miami, Florida | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #17 Oklahoma | 1 | vs | Oklahoma State | 5 | FINAL | Box Score | Recap | Oklahoma City, OK |
| 5/10/2009 | * | Utah | 3 | at | #18 TCU | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| UNC Wilmington | 4 | at | #20 Clemson | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #21 Kansas | 12 | at | Missouri | 13 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Texas Tech | 5 | at | #21 Kansas State | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #22 East Carolina | 13 | at | Houston | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | VMI | 0 | at | #23 Coastal Carolina | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | VMI | 2 | at | #23 Coastal Carolina | 4 | FINAL | Box Score | Recap | moved from 5/11, impending weather |
| 5/10/2009 | * | #24 Oregon State | 3 | at | Washington | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #25 Ohio State | 12 | at | Illinois | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #28 Elon | 7 | at | Western Carolina | 2 | FINAL | Box Score | Recap | |
| America East Conference |
| 5/10/2009 | * | Binghamton | 4 | at | Maine | 3 | FINAL | Box Score | Recap | 11 innings |
| 5/10/2009 | * | Binghamton | 4 | at | Maine | 0 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 | * | Stony Brook | 3 | at | Hartford | 4 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 | * | Stony Brook | 17 | at | Hartford | 1 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | UMBC | 0 | at | Vermont | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | UMBC | 1 | at | Vermont | 5 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 |
| New York Tech | 14 | at | Albany | 7 | FINAL | Box Score | Recap | |
| Atlantic 10 Conference |
| 5/10/2009 | * | Duquesne | 10 | at | St. Bonaventure | 13 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | LaSalle | 1 | at | Dayton | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Rhode Island | 3 | at | Massachusetts | 10 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Richmond | 4 | at | Fordham | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | St. Joseph's | 6 | at | Charlotte | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | St. Louis | 12 | at | Temple | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Xavier | 13 | at | George Washington | 3 | FINAL | Box Score | Recap | |
| Atlantic Coast Conference |
| 5/10/2009 | * | #1 North Carolina | 4 | at | NC State | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #9 Florida State | 5 | at | #10 Georgia Tech | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Duke | 1 | at | #14 Virginia | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Bethune-Cookman | 5 | at | #15 Miami, Florida | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| UNC Wilmington | 4 | at | #20 Clemson | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Wake Forest | 4 | at | Maryland | 15 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Delaware State | 8 | at | Virginia Tech | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Delaware State | 1 | at | Virginia Tech | 15 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| LeMoyne | 6 | at | Boston College | 10 | FINAL | Box Score | Recap | |
| Atlantic Sun Conference |
| 5/10/2009 | * | East Tennessee State | 6 | at | Stetson | 11 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Jacksonville | 11 | at | Mercer | 10 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | North Florida | 6 | at | South Carolina-Upstate | 2 | FINAL | Box Score | Recap | |
| Big 10 Conference |
| 5/10/2009 | * | #25 Ohio State | 12 | at | Illinois | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Minnesota | 4 | at | Michigan | 10 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Northwestern | 2 | at | Indiana | 11 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Penn State | 3 | at | Iowa | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Purdue | 9 | at | Michigan State | 8 | FINAL | Box Score | Recap | |
| Big 12 Conference |
| 5/10/2009 | * | #16 Texas A&M | 4 | at | #8 Texas | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #17 Oklahoma | 1 | vs | Oklahoma State | 5 | FINAL | Box Score | Recap | Oklahoma City, OK |
| 5/10/2009 | * | #21 Kansas | 12 | at | Missouri | 13 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Texas Tech | 5 | at | #21 Kansas State | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Cal State Bakersfield | 8 | at | Nebraska | 7 | FINAL | Box Score | Recap | |
| Big East Conference |
| 5/10/2009 | * | Cincinnati | 3 | at | West Virginia | 18 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Louisville | 15 | at | St. John's | 19 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Pittsburgh | 5 | at | Connecticut | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Seton Hall | 14 | at | Rutgers | 10 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | South Florida | 6 | at | Notre Dame | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Villanova | 1 | at | Georgetown | 4 | FINAL | Box Score | Recap | |
| Big South Conference |
| 5/10/2009 |
| Winthrop | 0 | at | #5 Arizona State | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | VMI | 0 | at | #23 Coastal Carolina | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | VMI | 2 | at | #23 Coastal Carolina | 4 | FINAL | Box Score | Recap | moved from 5/11, impending weather |
| 5/10/2009 | * | High Point | 5 | at | Gardner-Webb | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Marshall | 5 | at | Radford | 3 | FINAL | Box Score | Recap | |
| Big West Conference |
| 5/10/2009 | * | #2 UC Irvine | 6 | at | Pacific | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #6 Cal State Fullerton | 4 | at | #19 Cal Poly | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Long Beach State | 9 | vs | UC Santa Barbara | 11 | FINAL | Box Score | Recap | Fullerton, CA |
| 5/10/2009 | * | UC Riverside | 11 | at | UC Davis | 1 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Southern California | 4 | at | Cal State Northridge | 5 | FINAL | Box Score | Recap | 11 innings |
| Colonial Athletic Association |
| 5/10/2009 |
| UNC Wilmington | 4 | at | #20 Clemson | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Delaware | 1 | at | Northeastern | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Old Dominion | 28 | at | VCU | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Towson | 5 | at | Georgia State | 15 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Hofstra | 13 | at | Norfolk State | 9 | FINAL | Box Score | Recap | 12 innings |
| 5/10/2009 |
| Longwood | 3 | at | William and Mary | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Longwood | 4 | at | William and Mary | 8 | FINAL | Box Score | Recap | 7 innings |
| Conference USA |
| 5/10/2009 | * | UCF | 7 | at | #3 Rice | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #22 East Carolina | 13 | at | Houston | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Southern Mississippi | 4 | at | Memphis | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | UAB | 1 | at | Tulane | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Marshall | 5 | at | Radford | 3 | FINAL | Box Score | Recap | |
| Division I Independents |
| 5/10/2009 |
| Cal State Bakersfield | 8 | at | Nebraska | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| LeMoyne | 6 | at | Boston College | 10 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Longwood | 3 | at | William and Mary | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Longwood | 4 | at | William and Mary | 8 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 |
| New Jersey Tech | 5 | at | St. Peter's | 10 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 |
| New Jersey Tech | 13 | at | St. Peter's | 14 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 |
| New York Tech | 14 | at | Albany | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| North Dakota | 3 | at | Northern Iowa | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Southern Illinois-Edwardsville | 10 | at | Morehead State | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| UT Pan American | 4 | at | Northern Colorado | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| UT Pan American |
| at | Northern Colorado |
| Postponed | | Recap | PPD to 5/11, inclement weather |
| Horizon League |
| 5/10/2009 | * | Butler | 6 | at | Valparaiso | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Butler | 3 | at | Valparaiso | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Illinois-Chicago | 11 | at | Cleveland State | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Illinois-Chicago | 1 | at | Cleveland State | 11 | FINAL | Box Score | Recap | |
| Metro Atlantic Athletic Conference |
| 5/10/2009 | * | Fairfield | 7 | at | Canisius | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Niagara | 5 | at | Marist | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Rider | 3 | at | Manhattan | 0 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 | * | Rider | 5 | at | Manhattan | 6 | FINAL | Box Score | Recap | makeup of 5/9 game |
| 5/10/2009 | * | Siena | 18 | at | Iona | 1 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| New Jersey Tech | 5 | at | St. Peter's | 10 | FINAL | Box Score | Recap | 7 innings |
| 5/10/2009 |
| New Jersey Tech | 13 | at | St. Peter's | 14 | FINAL | Box Score | Recap | 7 innings |
| Mid American Conference |
| 5/10/2009 | * | Akron | 5 | at | Kent State | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Ball State | 8 | at | Northern Illinois | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Bowling Green State | 15 | at | Buffalo | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Central Michigan | 9 | at | Western Michigan | 5 | FINAL | Box Score | Recap | 10 innings |
| 5/10/2009 | * | Eastern Michigan | 11 | at | Toledo | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Ohio | 12 | at | Miami, Ohio | 7 | FINAL | Box Score | Recap | |
| Mid-Eastern Athletic Conference |
| 5/10/2009 |
| Bethune-Cookman | 5 | at | #15 Miami, Florida | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Delaware State | 8 | at | Virginia Tech | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Delaware State | 1 | at | Virginia Tech | 15 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Hofstra | 13 | at | Norfolk State | 9 | FINAL | Box Score | Recap | 12 innings |
| Missouri Valley Conference |
| 5/10/2009 | * | Evansville | 1 | at | Indiana State | 13 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Illinois State | 10 | at | Bradley | 9 | FINAL | Box Score | Recap | 10 innings |
| 5/10/2009 | * | Missouri State | 8 | at | Creighton | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Wichita State |
| at | Southern Illinois |
| Canceled | | Recap | CCD, storm damage to field |
| 5/10/2009 |
| North Dakota | 3 | at | Northern Iowa | 4 | FINAL | Box Score | Recap | |
| Mountain West Conference |
| 5/10/2009 | * | Utah | 3 | at | #18 TCU | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Air Force | 2 | at | San Diego State | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| New Mexico | 4 | at | Stanford | 9 | FINAL | Box Score | Recap | |
| Northeast Conference |
| 5/10/2009 | * | Long Island | 8 | at | Fairleigh Dickinson | 16 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Wagner | 3 | at | Sacred Heart | 4 | FINAL | Box Score | Recap | 12 innings |
| 5/10/2009 | * | Wagner | 8 | at | Sacred Heart | 9 | FINAL | Box Score | Recap | makeup of 5/9 game |
| Ohio Valley Conference |
| 5/10/2009 | * | Eastern Illinois |
| at | Austin Peay State |
| Canceled | | Recap | CCD, field conditions |
| 5/10/2009 | * | Eastern Illinois |
| at | Austin Peay State |
| Canceled | | Recap | CCD, field conditions (makeup of 5/9 game) |
| 5/10/2009 | * | Jacksonville State | 4 | at | Tennessee Tech | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Murray State | 13 | at | Tennessee-Martin | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Southeast Missouri State | 10 | at | Eastern Kentucky | 11 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Southern Illinois-Edwardsville | 10 | at | Morehead State | 8 | FINAL | Box Score | Recap | |
| Pac 10 Conference |
| 5/10/2009 |
| Winthrop | 0 | at | #5 Arizona State | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #24 Oregon State | 3 | at | Washington | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | California | 8 | at | UCLA | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Oregon | 2 | at | Washington State | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Loyola Marymount | 5 | at | Arizona | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| New Mexico | 4 | at | Stanford | 9 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Southern California | 4 | at | Cal State Northridge | 5 | FINAL | Box Score | Recap | 11 innings |
| Patriot League |
| 5/10/2009 | PATRIOT-06 | Lafayette | 10 | vs | Bucknell | 2 | FINAL | Box Score | Recap | Patriot Tournament, Game 6 (Lewisburg, PA) |
| 5/10/2009 | PATRIOT-05 | Holy Cross | 0 | vs | Army | 11 | FINAL | Box Score | Recap | Patriot Tournament, Game 5 (West Point, NY) |
| Southeastern Conference |
| 5/10/2009 | * | #12 Florida | 9 | at | #4 LSU | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Mississippi State | 1 | at | #7 Mississippi | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | #11 Arkansas | 5 | at | #26 Alabama | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Vanderbilt | 3 | at | #13 Georgia | 4 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Auburn | 7 | at | Kentucky | 5 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | South Carolina | 15 | at | Tennessee | 6 | FINAL | Box Score | Recap | |
| Southern Conference |
| 5/10/2009 | * | #28 Elon | 7 | at | Western Carolina | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Appalachian State | 9 | at | UNC Greensboro | 8 | FINAL | Box Score | Recap | 10 innings |
| 5/10/2009 | * | College of Charleston | 5 | at | Wofford | 0 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Georgia Southern | 16 | at | Samford | 3 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | The Citadel | 7 | at | Furman | 6 | FINAL | Box Score | Recap | |
| Southland Conference |
| 5/10/2009 | * | Nicholls State | 6 | at | Texas State | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Northwestern State | 7 | at | Texas A&M-Corpus Christi | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Sam Houston State |
| at | Central Arkansas |
| Canceled | | Recap | CCD, rain |
| 5/10/2009 | * | Stephen F. Austin | 5 | at | Southeastern Louisiana | 12 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | UT Arlington | 3 | at | Lamar | 4 | FINAL | Box Score | Recap | 10 innings |
| 5/10/2009 | * | UTSA | 13 | at | McNeese State | 11 | FINAL | Box Score | Recap | |
| Southwestern Athletic Conference |
| 5/10/2009 |
| Mississippi Valley State | 6 | at | Middle Tennessee State | 19 | FINAL | Box Score | Recap | |
| Summit League |
| 5/10/2009 | * | IUPU-Fort Wayne | 3 | at | South Dakota State | 11 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Oral Roberts | 10 | at | Oakland | 2 | FINAL | Box Score | Recap | 7 innings (makeup of 5/9 game) |
| 5/10/2009 | * | Oral Roberts | 12 | at | Oakland | 1 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Western Illinois | 7 | at | North Dakota State | 13 | FINAL | Box Score | Recap | |
| Sun Belt Conference |
| 5/10/2009 | * | Arkansas-Little Rock | 14 | at | New Orleans | 15 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Florida Atlantic | 10 | at | Arkansas State | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Florida International | 8 | at | South Alabama | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Louisiana-Monroe | 4 | at | Troy | 8 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Western Kentucky | 5 | at | Louisiana-Lafayette | 6 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Mississippi Valley State | 6 | at | Middle Tennessee State | 19 | FINAL | Box Score | Recap | |
| West Coast Conference |
| 5/10/2009 | * | Pepperdine | 3 | at | Portland | 2 | FINAL | Box Score | Recap | 12 innings |
| 5/10/2009 | * | San Francisco | 9 | at | San Diego | 1 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | Santa Clara | 8 | at | St. Mary's | 2 | FINAL | Box Score | Recap | |
| 5/10/2009 |
| Loyola Marymount | 5 | at | Arizona | 9 | FINAL | Box Score | Recap | |
| Western Athletic Conference |
| 5/10/2009 | * | Sacramento State | 6 | at | Nevada | 7 | FINAL | Box Score | Recap | |
| 5/10/2009 | * | San Jose State | 8 | at | New Mexico State | 11 | FINAL | Box Score | Recap | |