| Baseball diamonds |
| Premier |
| East City Bowl |
| 325 Burnham St. Premier level, adult size diamond. Used for baseball and softball. Features a grandstand, benches for players, scoreboard, lights and announcers booth. The park also has a junior and senior play area with accessibility features. Parking and washrooms (Lions Club building) available. |
| Kinsmen |
| 1 Kinsmen Way Premier level, adult size diamond. Used for slo-pitch/softball. Features lights, bleachers, youth soccer field, splash pad, parking and portable washroom (also available in Arena). |
| Riverside |
| 325 Burnham St. Premier level, adult size baseball diamond. Features a scoreboard, outfield wooden wall, pitchers pen, batters box, lights, warning track, parking and washrooms (Lions Club building). |
| Peterborough City Baseball Field at Trent |
| 2450 Pioneer Rd. Premier level, adult size baseball diamond. Features a clay pitchers mound, warning track, lights, parking and portable washrooms. |
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| Level A |
| Bowers Park |
| 765 Brealey Dr. Level A, four adult size diamonds. Used for slo-pitch, softball and baseball. Park also features spectator bleachers, lights, canteen building, playground structure and parking. Washrooms are open seasonally during spring and summer. |
| Milroy Park (Fisher Diamond) |
| 242 Milroy Dr. Level A, youth size baseball diamond. The park also features two adult soccer fields and bleachers. Parking is available. Portable washrooms are available during the spring and summer. |
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| Level B |
| Barnardo |
| 955 Barnardo Ave. Level B, youth size softball diamond. Park also features a splash pad, playground structure, basketball court, tennis courts and parking. |
| Bonnerworth |
| 560 McDonnel St. Level B, two adult size ball diamonds. Used for baseball and slo-pitch. Park also features a skateboard park, four tennis courts and parking. Washroom facilities are available seasonally during the spring and summer, typically closing in October. |
| Brinton Carpet |
| 160 Braidwood Ave. Level B, adult/youth size ball diamond. Used for slo-pitch and softball. Features bleachers and benches for players, street parking and portable washrooms. |
| Morrow Park |
| 55 Roger Neilson Way Level B, four adult size slo-pitch diamonds. Features bleachers, benches for players, parking and portable washrooms. |
| Northland |
| 1255 Bathurst St. Level B, youth size softball diamond. The park also features a playground structure, tennis court, basketball court and an outdoor rink. |
| Rube Brady (Ashburnham) |
| 211 Munroe Ave. Level B, adult size diamond. Used for slo-pitch and softball. Features a children's accessible play structure and a basketball court. Also located in the park is the Peterborough Museum and Archives and the Heritage pavilion. Parking and accessible portable washrooms available during the summer months. |
| Stacey Green |
| 705 Hawley St. Level B, adult size slo-pitch diamond. The park also features a playground structure, two tennis courts, basketball court and an outdoor rink. |
| Westclox |
| 310 Armour Rd. Level B, adult size slo-pitch diamond, owned by Parks Canada. |
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| Level C |
| Fairbairn and Poplar |
| 890 Fairbairn St. Level C, youth size softball diamond. Park features a playground structure, basketball court and outdoor rink. |
| Knights of Columbus |
| 5 Park St. Level C, youth size softball diamond. Features a wading pool, junior and senior playground structure with accessibility enhancements, basketball court, pickleball courts, Legacy Bowl outdoor arena and parking. Portable washroom is available during the wading pool season. |
| Northcrest |
| 100 Marina Blvd. Level C, youth size softball diamond. Street parking available. |
| Turner Park |
| 673 Chamberlain St. Level C, youth size softball diamond. Street parking available. Park also features a playground structure. |
| Westmount |
| 1520 Sherwood Cres. Level, C, youth size softball diamond. Street parking available. |
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| Rectangular fields |
| Premier fields |
| Mark Forster |
| 2150 Ashburnham Dr. Premier rectangular field. Dimensions: 225 feet by 345 feet. Eastgate park also has one Level A and two Level C rectangular fields. Used for soccer, lacrosse, frisbee. Park features bleachers, canteen, lights and parking. Washrooms are open seasonally, typically late spring until mid-October. |
| Trent Excalibur |
| 2450 Pioneer Rd. Premier rectangular field. Dimensions: 70 metres by 100 metres. Full sized FIFA soccer field and international rugby field. Used for soccer, rugby, frisbee and lacrosse. Features uprights, night time lighting, player's benches, one set of spectator benches, parking and portable washrooms. |
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| Level A |
| King Edward Park |
| 455 George St. Level A, rectangular field. Dimensions: 196 feet by 305 feet. Used for soccer, lacrosse, frisbee, cross county and flag football. Park also features a splash pad, playground structure, four bocce ball courts and basketball court. Washrooms are available, typically late spring until mid-October. |
| Hogan Field |
| 2150 Ashburnham Dr. Level A, rectangular field. Dimensions: 196 feet x 316 feet. Eastgate Park also has one premiere and two Level C rectangular fields. Used for soccer, lacrosse, frisbee. Park features bleachers, canteen, lights and parking. Washrooms are available, typically late spring until mid-October. |
| Nicholls Oval |
| 725 Armour Rd. Level A, rectangular field. Dimensions: 223 feet by 334 feet. Used for soccer, lacrosse, frisbee, cross country and flag football. Park also features a splash pad, accessible playground structure, basketball court, pavilion, stages, trails and parking. Washrooms are open seasonally, from late spring until early autumn. |
| Milroy |
| 242 Milroy Dr. Level A, two rectangular fields and a cricket pitch. Dimensions: 210 feet by 345 feet of fields. Cricket wicket: 66 feet by 10 feet, Cricket pitch: 150 yards. Used for soccer, lacrosse, frisbee, cross country and flag football. Parking and portable washrooms available. |
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| Level B |
| Beavermead Park |
| 2011 Ashburnham Dr. Level B, six rectangular fields. Used for soccer, lacrosse, frisbee, cross country and flag football. Park also features a playground structure with accessible features, beach, trails, six volleyball courts, pavilion, outdoor gym, parking and washroom facilities (open seasonally). Dimensions of the fields: Beavermead 1: 180 feet by 298 feet Beavermead 2: 149 feet by 298 feet Beavermead 3: 164 feet by 298 feet Beavermead 4: 193 feet by 329 feet Beavermead 5: 176 feet by 296 feet Beavermead 6: 100 feet by 80 feet |
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| Level C |
| Eastgate Park |
| 2150 Ashburnham Dr. Level C, two rectangular fields. Also features one Premier and one Level A rectangular field, changerooms and field house. Parking is available. Washroom are open seasonally. |
| Kinsmen Park |
| 1 Kinsmen Way Level C, rectangular field. Dimensions: 150 feet x 295 feet. Used for soccer, lacrosse, frisbee. The park also features an adult ball diamond with lights and a splash pad. Parking is available. Washrooms are open seasonally. |
| Knights of Columbus |
| 5 Park St. Level C, ball diamond. The parks also features pickleball courts, a basketball court, an outdoor arena used for hockey, ball hockey, field hockey and roller derby. There is also a playground structure with accessibility enhancements, and a wading pool. Parking and portable washrooms available. |
| Wedgewood (St. Teresa's) |
| 1535 Fairmount Blvd. Level C, two rectangular fields used for soccer. The park also features a junior and senior play area with accessible features. Seating and benches available in the park. |
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| Fleming – City Field (PYSC East) |
| 599 Brealey Dr. Dimensions: 64 metres by 100 metres. Used for soccer, field lacrosse, field hockey and frisbee. Spectator seating, field house, scoreboard and lights. |
| Fleming – College Field (Knights West) |
| 599 Brealey Dr. Dimensions: 64 metres by 100 metres. Used for soccer, field lacrosse, rugby, field hockey, frisbee, football. Spectator seating, field house, scoreboard, lights, washrooms and parking. |
| Holy Cross (available July 1, 2021) |
| 1355 Lansdowne St. W. Dimensions: 65 yards by 110 yards. Field will be lit with LED lights and will feature an eight-lane running track. |
| TASS |
| 1009 Armour Rd. Dimensions: 65 yards by 110 yards. Used for soccer, football, rugby, field lacrosse, frisbee, field hockey. Electronic scoreboard, track and field features, 8 lane track, bleacher seating, lights, washrooms and parking. |
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