| Tuesday, April 1st, 1873 |
| Cambridge Cantabs: Uleyck Tunison goes 0-5 against the New Brunswick Hubs, ending his hitting streak at 38 games. |
| Medford Mustangs: 3B Hilario Peynado was injured being hit by a pitch. The Diagnosis: fractured foot. He's expected to miss about 2-3 weeks. |
| New Haven Elm Citys: Signed free agent MR Hart Waldherr to a minor league contract. |
| New York Mutuals: Activated 3B Elliot Highlen from the disabled list. |
| New York Mutuals: Activated RF Tobías Gadea from the 60-day disabled list. |
| New York Mutuals: Matt Strantz goes 5-5 against the New Haven Elm Citys, with 1 HR, 3 RBI and 1 R. |
| New York Mutuals: Placed C Toshikasu Yoneda on the 60-day disabled list. |
| Philadelphia Centennials: CF Johnny Overs was injured on a defensive play. The Diagnosis: torn thumb ligament. He's expected to miss about 2 weeks. |
| Philadelphia Centennials: Signed free agent SP Winston Leoniedas to a minor league contract. |
| Princeton Tigers: Signed free agent LF Cory Huxtable to a minor league contract. |
| Princeton Tigers: Signed free agent MR Steve Mansch to a minor league contract. |
|
| Wednesday, April 2nd, 1873 |
| Medford Mustangs: Placed 3B Hilario Peynado on the 7-day disabled list, retroactive to 04/01/1873. |
| New Haven Elm Citys: Silverio Arrindel goes 0-5 against the Hoboken Giants, ending his hitting streak at 24 games. |
| Philadelphia Centennials: Placed CF Johnny Overs on the 7-day disabled list, retroactive to 04/01/1873. |
|
| Thursday, April 3rd, 1873 |
| Cambridge Cantabs: Activated C Luc Elgin from the disabled list. |
| New York Mutuals: 3B Matt Strantz was injured on a defensive play. The Diagnosis: foot contusion. He's expected to miss about one week. |
| Philadelphia Centennials: CF Weston Rugani was injured on a defensive play. The Diagnosis: back tightness. He's expected to miss about 2 weeks. |
| Providence Grays: Sonny Stahn goes 5-5 against the Philadelphia Centennials, with 1 2B, 3 RBI and 1 R. |
|
| Friday, April 4th, 1873 |
| New York Mutuals: Placed 3B Matt Strantz on the 7-day disabled list, retroactive to 04/03/1873. |
| Philadelphia Centennials: Placed CF Weston Rugani on the 7-day disabled list, retroactive to 04/03/1873. |
|
| Saturday, April 5th, 1873 |
| Medford Mustangs: Activated RF Codie Lolly from the disabled list. |
| Medford Mustangs: RF Codie Lolly was injured in a collision at a base. The Diagnosis: mild hamstring strain. He's expected to miss about 2 weeks. |
| New Haven Elm Citys: Chi-hyeong Joh goes 6-6 against the Medford Mustangs, with 2 2B, 2 RBI and 4 R. |
| New York Mutuals: 1B Lyndon Waidner was injured . The Diagnosis: gout. He's expected to miss about 2 days. |
| Providence Grays: CF Tris Hedrich was injured while running the bases. The Diagnosis: calf soreness. This is a day-to-day injury expected to last one week. |
|
| Sunday, April 6th, 1873 |
| Medford Mustangs: Placed RF Codie Lolly on the 7-day disabled list, retroactive to 04/05/1873. |
|
| Monday, April 7th, 1873 |
| SP David Zubero of the Providence Grays honored: Wins the EL Player of the Week Award. |
| Providence Grays: Signed free agent 1B Harman Wilkos to a 1-year contract worth a total of $117. |
| Amherst Minutemen: Activated 3B Tilson de la Hoz from the disabled list. |
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| Tuesday, April 8th, 1873 |
| New Brunswick Hubs: Activated 2B Arys Gehring from the disabled list. |
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| Wednesday, April 9th, 1873 |
| Amherst Minutemen: Activated 2B Ricky Citro from the disabled list. |
| Providence Grays: Signed MR Guillelmina Camposano to a minor league contract. |
|
| Friday, April 11th, 1873 |
| New York Mutuals: Milorad Jugovic hits for the CYCLE, going 4-5 against the Medford Mustangs, with 5 RBI and 3 runs scored. |
| New York Mutuals: Activated 3B Matt Strantz from the disabled list. |
|
| Saturday, April 12th, 1873 |
| Medford Mustangs: Codie Lolly has suffered a setback in his recovery. He is not expected to recover for another one week. |
| Philadelphia Centennials: Activated CF Galeno Faba from the disabled list. |
| Princeton Tigers: LF Edgardo Morar was injured . The Diagnosis: nausea. He's expected to miss about 3 days. |
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| Monday, April 14th, 1873 |
| RF Bartoli Ildefonso of the Hoboken Giants honored: Wins the EL Player of the Week Award. |
| Philadelphia Centennials: Activated CF Johnny Overs from the disabled list. |
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| Tuesday, April 15th, 1873 |
| New Brunswick Hubs: Jakobe Karis goes 5-6 against the Amherst Minutemen, with 1 2B, 0 RBI and 2 R. |
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| Wednesday, April 16th, 1873 |
| Cambridge Cantabs: Emiliano Bails goes 2-5 against the Princeton Tigers, extending his hitting streak to 20 games! |
|
| Thursday, April 17th, 1873 |
| Cambridge Cantabs: Elija Aguancha goes 5-6 against the Providence Grays, with 2 2B, 2 RBI and 3 R. |
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| Friday, April 18th, 1873 |
| New Brunswick Hubs: CF Monty Caputo was injured on a defensive play. The diagnosis is not yet known. |
|
| Saturday, April 19th, 1873 |
| Amherst Minutemen: 2B Bucky Palmier was injured in a collision at a base. The Diagnosis: fractured wrist. He's expected to miss about 5 weeks. |
|
| Sunday, April 20th, 1873 |
| Amherst Minutemen: Placed 2B Bucky Palmier on the 7-day disabled list, retroactive to 04/19/1873. |
| Medford Mustangs: Activated 3B Hilario Peynado from the disabled list. |
| New Brunswick Hubs: Monty Caputo diagnosed with an oblique strain, will miss 3 weeks. |
| New Brunswick Hubs: Placed CF Monty Caputo on the 7-day disabled list, retroactive to 04/18/1873. |
| Philadelphia Centennials: Activated CF Weston Rugani from the disabled list. |
|
| Monday, April 21st, 1873 |
| RF Elija Aguancha of the Cambridge Cantabs honored: Wins the EL Player of the Week Award. |
| New Haven Elm Citys: Activated SS Wes McCoskey from the disabled list. |
|
| Wednesday, April 23rd, 1873 |
| Medford Mustangs: Activated RF Codie Lolly from the disabled list. |
| Princeton Tigers: Tommy Trafton goes 5-6 against the Medford Mustangs, with 3 RBI and 3 R. |
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| Saturday, April 26th, 1873 |
| Cambridge Cantabs: Activated SS Larry Merry from the disabled list. |
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| Monday, April 28th, 1873 |
| SP Dawson Schissler of the Hoboken Giants honored: Wins the EL Player of the Week Award. |
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| Wednesday, April 30th, 1873 |
| Cambridge Cantabs: Emiliano Bails goes 0-1 against the New York Mutuals, ending his hitting streak at 24 games. |
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| Thursday, May 1st, 1873 |
| RF Bartoli Ildefonso of the Hoboken Giants honored: Wins the EL Batter of the Month Award. |
| SP Dawson Schissler of the Hoboken Giants honored: Wins the EL Pitcher of the Month Award. |
| CF Donnie McKee of the New Brunswick Hubs honored: Wins the EL Rookie of the Month Award. |