Single Season Relief Leaders
| Saves | Save Percentage |
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| . | . | . | . | . | ||||||
| 2011 | Rivera, M | Chauns | 54 | 2011 | Rivera, M | Chauns | 94.7 | |||
| 1998 | Henneman, M | Other Tm | 48 | 2011 | O'Day, D | Tornadoes | 93.9 | |||
| 2010 | Belisario, R | Avalanche | 46 | 2000 | Hoffman, T | Bombers | 93.5 | |||
| 2011 | O'Day, D | Tornadoes | 45 | 2001 | Lowe, D | Gargoyles | 92.9 | |||
| 2000 | Rivera, M | Comets | 44 | 2009 | Soria, J | Knights | 92.5 | |||
| 1997 | Ryan, K | Thunder | 44 | 2010 | O'Day, D | Capones | 92.1 | |||
| 2010 | Rivera, M | Chauns | 43 | 2007 | Putz, J | Chauns | 91.9 | |||
| 2001 | Foulke, K | Avalanche | 43 | 2010 | McClellan, K | Nine | 91.7 | |||
| 1997 | Hernandez, R | Chauns | 41 | 2001 | King, R | Rebels | 91.7 | |||
| 1996 | Aguilera, R | Knights | 40 | 2009 | Nathan, J | Black Sox | 90.7 | |||
| ERA | Relief Points |
|||||||||
| . | . | . | . | . | ||||||
| 2011 | Wilson, B | Orioles | 0.15 | 2011 | Rivera, M | Chauns | 160 | |||
| 2009 | Ziegler, B | Chauns | 0.77 | 1996 | Henneman, M | Other Tm | 146 | |||
| 1996 | Mesa, J | Homers | 0.78 | 2001 | Foulke, K | Avalanche | 129 | |||
| 2005 | Benitez, A | Trolleys | 0.90 | 1997 | Hernandez, R | Chauns | 129 | |||
| 2007 | Rivera, M | Comets | 0.96 | 1997 | Ryan, K | Thunder | 128 | |||
| 2003 | Benitez, A | Storm | 1.03 | 2010 | Belisario, R | Avalanche | 126 | |||
| 2011 | Kuo, H | Shiners | 1.11 | 2000 | Rivera, M | Comets | 126 | |||
| 2003 | Hasegawa, S | Gargoyles | 1.17 | 2011 | O'Day, D | Tornadoes | 121 | |||
| 2002 | Kline, S | Bombers | 1.23 | 1997 | Nen, R | Knights | 121 | |||
| 2003 | Reed, St | Lightning | 1.24 | 2001 | Lowe, D | Gargoyles | 117 | |||
| Games | Holds |
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| . | . | . | . | . | ||||||
| 2009 | Durbin, C | Bombers | 96 | 2001 | Mecir, J | Avalanche | 39 | |||
| 1998 | Wickman, B | Scorpions | 90 | 2003 | Hawkins, L | Knights | 30 | |||
| 2001 | Wickman, B | Avalanche | 85 | 2001 | Wickman, B | Avalanche | 29 | |||
| 2000 | Jones, D | Avalanche | 83 | 2009 | Durbin, C | Bombers | 28 | |||
| 2005 | Walker, J | Wildcats | 82 | 2002 | Van Poppel, T | H-Rollers | 25 | |||
| 2001 | Mecir, J | Avalanche | 80 | 2001 | Garces, R | Avalanche | 25 | |||
| 2005 | Rivera, M | Comets | 78 | 2010 | Troncoso, R | ? | 24 | |||
| 2005 | Rusch, G | Blue Ox | 76 | 2007 | Broxton, J | Bombers | 24 | |||
| 2005 | Stanton, M | Blue Sox | 74 | 2005 | Linebrink, S | Bombers | 23 | |||
| 1998 | Powell, J | Scorpions | 74 | 2002 | DeJean, M | Knights | 23 | |||
| 2 Players tied with | 73 | 2005 | Brower, J | Gunslingers | 22 | |||||