| Year | Team Name | League | Division | Affilate | W | L | Pct | Rank | Managers | Stadium | Playoffs | |
| 2013 | Harrisburg | Senators | East | Western | WAN | 21 | 22 | .488 | 3 | Matt LeCroy | Metro Bank Park | dnq |
| 2012 | Harrisburg | Senators | East | Western | WAN | 64 | 78 | .451 | 5 | Matt LeCroy | Metro Bank Park | dnq |
| 2011 | Harrisburg | Senators | East | Western | WAN | 80 | 62 | .563 | 1 | Tony Beasley | Metro Bank Park | Lost in Semi-Finals |
| 2010 | Harrisburg | Senators | East | Western | WAN | 77 | 65 | .542 | 2 | Randy Knorr | Metro Bank Park | Lost in Semi-Finals |
| 2009 | Harrisburg | Senators | East | Southern | WAN | 70 | 72 | .493 | 5 | John Stearns | Commerce Bank Park | dnq |
| 2008 | Harrisburg | Senators | East | Southern | WAN | 74 | 69 | .517 | 3 | John Stearns | Commerce Bank Park | dnq |
| 2007 | Harrisburg | Senators | East | Southern | WAN | 55 | 86 | .390 | 6 | Scott Little | Commerce Bank Park | dnq |
| 2006 | Harrisburg | Senators | East | Southern | WAN | 67 | 75 | .472 | 5 | John Stearns | Commerce Bank Park | dnq |
| 2005 | Harrisburg | Senators | East | Southern | WAN | 64 | 78 | .451 | 5 | Keith Bodie | Commerce Bank Park | dnq |
| 2004 | Harrisburg | Senators | East | Southern | MTL | 52 | 90 | .366 | 6 | Dave Machemer | Commerce Bank Park | dnq |
| 2003 | Harrisburg | Senators | East | Southern | MTL | 60 | 82 | .423 | 6 | Dave Machemer | Riverside Stadium | dnq |
| 2002 | Harrisburg | Senators | East | Southern | MTL | 67 | 72 | .482 | 5 | Dave Huppert | Riverside Stadium | Lost in Finals |
| 2001 | Harrisburg | Senators | East | South | MTL | 66 | 76 | .465 | 4 | Luis Dorante | Riverside Stadium | dnq |
| 2000 | Harrisburg | Senators | East | South | MTL | 76 | 67 | .531 | 2 | Doug Sisson | Riverside Stadium | Lost in Semi-Finals |
| 1999 | Harrisburg | Senators | East | South | MTL | 76 | 66 | .535 | 3 | Doug Sisson Rick Sweet | Riverside Stadium | League Champions |
| 1998 | Harrisburg | Senators | East | Southern | MTL | 73 | 69 | .514 | 2 | Rick Sweet | Riverside Stadium | League Champions |
| 1997 | Harrisburg | Senators | East | Southern | MTL | 86 | 56 | .606 | 1 | Rick Sofield | Riverside Stadium | League Champions |
| 1996 | Harrisburg | Senators | East | Southern | MTL | 74 | 68 | .521 | 2 | Pat Kelly | Riverside Stadium | League Champions |
| 1995 | Harrisburg | Senators | East | Southern | MTL | 61 | 80 | .433 | 5 | Pat Kelly | Riverside Stadium | dnq |
| 1994 | Harrisburg | Senators | East | Southern | MTL | 88 | 51 | .633 | 1 | Dave Jauss | Riverside Stadium | Lost in Finals |
| 1993 | Harrisburg | Senators | East | - | MTL | 94 | 44 | .681 | 1 | Jim Tracy | Riverside Stadium | League Champions |
| 1992 | Harrisburg | Senators | East | - | MTL | 78 | 59 | .569 | 3 | Mike Quade | Riverside Stadium | Lost in Semi-Finals |
| 1991 | Harrisburg | Senators | East | - | MTL | 87 | 53 | .621 | 1 | Mike Quade | Riverside Stadium | Lost in Finals (Albany) |
| 1990 | Harrisburg | Senators | East | - | PIT | 69 | 69 | .500 | 5 | Marc Bombard | Riverside Stadium | dnq |
| 1989 | Harrisburg | Senators | East | - | PIT | 67 | 72 | .482 | 5 | Dave Trembley | Riverside Stadium | Lost in Finals |
| 1988 | Harrisburg | Senators | East | - | PIT | 65 | 73 | .471 | 7 | Dave Trembley | Riverside Stadium | dnq |
| 1987 | Harrisburg | Senators | East | - | PIT | 77 | 63 | .550 | 2 | Dave Trembley | Riverside Stadium | League Champions |