Swimmer profile

Mac Koster

Male15-16YMCA of the Jersey ShoreNJ · EASTERN

Performance Recruiting Progression Goals Time Standards Meets

Standards achieved

tap to filter events

Age group

15-16

Course

★ Highlight Events

200 Free LCM

Standard	Cut	Gap
B✓	2:36.59	−15.37
BB✓	2:25.39	−4.17
A	2:14.29	+6.93
AA	2:08.69	+12.53
AAA	2:03.09	+18.13
AAAA	1:57.49	+23.73

PBAA

2:21.22

2022 NJ SCAR LC Junior Olympics

Jul 31, 2022

LSC

of 123

100 Back LCM

Standard	Cut	Gap
B✓	1:19.39	−13.80
BB✓	1:13.69	−8.10
A✓	1:07.99	−2.40
AA	1:05.19	+0.40
AAA	1:02.39	+3.20
AAAA	59.49	+6.10

PBAAA

1:05.59

2024 NJ LC Gold Championship

Jul 26, 2024

LSC

of 200

400 Free LCM

Standard	Cut	Gap
B✓	5:34.09	−23.15
BB	5:10.19	+0.75
A	4:46.39	+24.55
AA	4:34.39	+36.55
AAA	4:22.49	+48.45
AAAA	4:10.59	+60.35

PBAA

5:10.94

2022 NJ EEX JS Mace Memorial Summer Sizzle

Jun 24, 2022

LSC

of 57

Event

50 Free LCM

Standard	Cut	Gap
B✓	32.89	−5.95
BB✓	30.59	−3.65
A✓	28.19	−1.25
AA✓	26.99	−0.05
AAA	25.89	+1.05
AAAA	24.69	+2.25

PBAA

26.94

2026 NJ GSCY Long Course Cup

May 31, 2026

LSC

of 229

100 Free LCM

Standard	Cut	Gap
B✓	1:11.79	−12.06
BB✓	1:06.69	−6.96
A✓	1:01.49	−1.76
AA	58.99	+0.74
AAA	56.39	+3.34
AAAA	53.79	+5.94

PBA

59.73

2026 NJ GSCY Long Course Cup

May 30, 2026

LSC

103

of 225

200 Free LCM

Standard	Cut	Gap
B✓	2:36.59	−15.37
BB✓	2:25.39	−4.17
A	2:14.29	+6.93
AA	2:08.69	+12.53
AAA	2:03.09	+18.13
AAAA	1:57.49	+23.73

PBAA

2:21.22

2022 NJ SCAR LC Junior Olympics

Jul 31, 2022

LSC

of 123

400 Free LCM

Standard	Cut	Gap
B✓	5:34.09	−23.15
BB	5:10.19	+0.75
A	4:46.39	+24.55
AA	4:34.39	+36.55
AAA	4:22.49	+48.45
AAAA	4:10.59	+60.35

PBAA

5:10.94

2022 NJ EEX JS Mace Memorial Summer Sizzle

Jun 24, 2022

LSC

of 57

50 Back LCM

Standard	Cut	Gap
B✓	37.79	−7.12
BB✓	35.09	−4.42
A✓	32.39	−1.72
AA✓	31.09	−0.42
AAA	29.69	+0.98
AAAA	28.39	+2.28

PBAA

30.67

2026 NJ GSCY Long Course Cup

May 31, 2026

LSC

of 103

100 Back LCM

Standard	Cut	Gap
B✓	1:19.39	−13.80
BB✓	1:13.69	−8.10
A✓	1:07.99	−2.40
AA	1:05.19	+0.40
AAA	1:02.39	+3.20
AAAA	59.49	+6.10

PBAAA

1:05.59

2024 NJ LC Gold Championship

Jul 26, 2024

LSC

of 200

200 Back LCM

Standard	Cut	Gap
B✓	2:52.29	−26.17
BB✓	2:39.99	−13.87
A✓	2:27.69	−1.57
AA	2:21.49	+4.63
AAA	2:15.39	+10.73
AAAA	2:09.19	+16.93

PBAA

2:26.12

2024 NJ LC Gold Championship

Jul 28, 2024

LSC

of 128

50 Breast LCM

Standard	Cut	Gap
B	41.79	+2.25
BB	38.79	+5.25
A	35.79	+8.25
AA	34.29	+9.75
AAA	32.79	+11.25
AAAA	31.29	+12.75

PBBB

44.04

2022 NJ July Independence Invitational

Jul 10, 2022

LSC

of 138

50 Fly LCM

Standard	Cut	Gap
B✓	35.69	−6.51
BB✓	33.09	−3.91
A✓	30.59	−1.41
AA✓	29.29	−0.11
AAA	27.99	+1.19
AAAA	26.79	+2.39

PBAA

29.18

2025 NJ Jeffrey S. Mace Memorial Summer Sizzle XXXIII

Jun 29, 2025

LSC

of 114

100 Fly LCM

Standard	Cut	Gap
B✓	1:16.79	−10.12
BB✓	1:11.29	−4.62
A	1:05.79	+0.88
AA	1:03.09	+3.58
AAA	1:00.29	+6.38
AAAA	57.59	+9.08

PBBB

1:06.67

2026 NJ GSCY Long Course Cup

May 30, 2026

LSC

of 195

200 IM LCM

Standard	Cut	Gap
B✓	2:56.19	−20.98
BB✓	2:43.59	−8.38
A	2:30.99	+4.22
AA	2:24.69	+10.52
AAA	2:18.39	+16.82
AAAA	2:12.09	+23.12

PBBB

2:35.21

2025 NJ GSCY Long Course Cup

May 31, 2025

LSC

128

of 175