Umpire Greg Walls
Has umpired for 1st (Highest), 31st (Lowest), 16th (Average)
Conferences by Annual Ranking.
Worked in front of 114,004 Fans.
Officiated Conferences (including non-conference assignments):
2013
ACC (6 games)
Atlantic 10 (18 games)
Big South (3 games)
CAA (13 games)
MEAC (1 games)
2014
ACC (9 games)
America East (1 games)
Atlantic 10 (12 games)
Big South (3 games)
C-USA (2 games)
CAA (15 games)
MEAC (4 games)
2015
ACC (3 games)
Atlantic 10 (16 games)
Big South (7 games)
C-USA (2 games)
CAA (15 games)
MAAC (1 games)
SoCon (1 games)
2016
ACC (8 games)
Atlantic 10 (23 games)
Big South (6 games)
C-USA (2 games)
CAA (21 games)
MEAC (2 games)
Patriot (10 games)
SoCon (2 games)
2017
ACC (17 games)
America East (1 games)
Atlantic 10 (15 games)
Big 12 (2 games)
Big East (1 games)
Big South (8 games)
Big Ten (1 games)
C-USA (2 games)
CAA (19 games)
SoCon (1 games)
2018
ACC (4 games)
Atlantic 10 (19 games)
Big South (15 games)
CAA (21 games)
Ivy League (1 games)
SoCon (1 games)
2019
ASUN (1 games)
Atlantic 10 (30 games)
CAA (32 games)
MAAC (1 games)
SoCon (1 games)
2020
ASUN (3 games)
Atlantic 10 (4 games)
Big Ten (1 games)
CAA (6 games)
Teams Umpired (94 Teams):
| Bowling Green | Brown | Bryant |
| Bucknell | Buffalo | Campbell |
| Canisius | Central Conn. St. | Charlotte |
| Col. of Charleston | Coppin St. | CSUN |
| Davidson | Dayton | Delaware |
| East Carolina | Elon | Evansville |
| Fairfield | Florida St. | Fordham |
| Gardner-Webb | George Mason | George Washington |
| Georgetown | Georgia Tech | Hartford |
| High Point | Holy Cross | Iona |
| James Madison | Kansas St. | Kent St. |
| La Salle | Lafayette | Lehigh |
| Liberty | Longwood | Louisville |
| Manhattan | Marist | Marshall |
| Maryland | Massachusetts | Miami (OH) |
| Monmouth | Mt. St. Mary's | N.C. Central |
| Navy | NC State | Niagara |
| NJIT | Norfolk St. | North Carolina |
| Northeastern | Ohio | Ohio St. |
| Old Dominion | Penn | Penn St. |
| Pittsburgh | Princeton | Quinnipiac |
| Radford | Rhode Island | Richmond |
| Rider | Rutgers | Saint Joseph's |
| Saint Louis | Saint Peter's | St. Bonaventure |
| St. John's (NY) | Temple | Toledo |
| Towson | UMass Lowell | UMBC |
| UMES | UNCG | UNCW |
| VCU | Virginia | Virginia Tech |
| VMI | Wagner | Wake Forest |
| West Virginia | Western Caro. | William & Mary |
| Wofford | Xavier | Yale |
| Youngstown St. |