Swimmer profile

Katherine McMahon

Female15-16YMCA Of Greenwich MarlinsCT · EASTERN

Performance Recruiting Progression Goals Time Standards Meets

15 all-time personal bests this season!

Standards achieved

AA×1A×1BB×9B×1

All-time PBs

15events

Best CT rank

#2950 Breast SCY

Events ranked

15SCY

Age group

15-16

★ Highlight Events

50 Breast SCY

Standard	Cut	Gap
B✓	41.09	−7.54
BB✓	38.19	−4.64
A✓	35.19	−1.64
AA✓	33.79	−0.24
AAA	32.29	+1.26
AAAA	30.79	+2.76

PBAA

33.55

2025 FG 35th Annual Winter Championships

Dec 13, 2025

🎓 Class of 2029#17of 125 · CT#791 USA*

LSC

of 134

200 Breast SCY

Standard	Cut	Gap
B✓	3:05.99	−26.50
BB✓	2:52.69	−13.20
A	2:39.39	+0.10
AA	2:32.79	+6.70
AAA	2:26.19	+13.30
AAAA	2:19.49	+20.00

PBBB

2:39.49

2026 CT GRYM Regional Champships

Mar 1, 2026

🎓 Class of 2029#23of 92 · CT#1,127 USA*

LSC

of 97

100 Breast SCY

Standard	Cut	Gap
B✓	1:25.89	−13.78
BB✓	1:19.79	−7.68
A✓	1:13.69	−1.58
AA	1:10.59	+1.52
AAA	1:07.49	+4.62
AAAA	1:04.49	+7.62

PBA

1:12.11

2026 NE OB NEPSAC D1 Championships

Mar 8, 2026

🎓 Class of 2029#20of 127 · CT#1,025 USA*

LSC

of 163

Event

50 Free SCY

Standard	Cut	Gap
B✓	31.79	−3.55
BB✓	29.49	−1.25
A	27.29	+0.95
AA	26.09	+2.15
AAA	24.99	+3.25
AAAA	23.89	+4.35

PBBB

28.24

2025 CT GRYM October Invite

Oct 12, 2025

🎓 Class of 2029#98of 132 · CT#3,707 USA*

LSC

159

of 264

100 Free SCY

Standard	Cut	Gap
B✓	1:08.79	−6.57
BB✓	1:03.79	−1.57
A	58.89	+3.33
AA	56.49	+5.73
AAA	53.99	+8.23
AAAA	51.59	+10.63

PBBB

1:02.22

2025 FG 35th Annual Winter Championships

Dec 13, 2025

🎓 Class of 2029#102of 132 · CT#3,844 USA*

LSC

179

of 272

200 Free SCY

Standard	Cut	Gap
B✓	2:28.99	−9.39
BB	2:18.39	+1.21
A	2:07.69	+11.91
AA	2:02.39	+17.21
AAA	1:57.09	+22.51
AAAA	1:51.79	+27.81

PBBB

2:19.60

2025 CT WYW Last Chance Meet

Feb 16, 2025

🎓 Class of 2029#104of 129 · CT#3,874 USA*

LSC

164

of 229

500 Free SCY

Standard	Cut	Gap
B✓	6:40.99	−21.37
BB	6:12.39	+7.23
A	5:43.69	+35.93
AA	5:29.39	+50.23
AAA	5:15.09	+64.53
AAAA	5:00.79	+78.83

PBBB

6:19.62

2024 CT GRYM October Invite

Oct 18, 2024

🎓 Class of 2029#97of 114 · CT#3,528 USA*

LSC

136

of 166

50 Back SCY

Standard	Cut	Gap
B✓	35.29	−1.23
BB	32.69	+1.37
A	30.19	+3.87
AA	28.99	+5.07
AAA	27.69	+6.37
AAAA	26.49	+7.57

PBBB

34.06

2024 CT GRYM January Trial/Finals

Jan 20, 2024

🎓 Class of 2029#82of 124 · CT#3,219 USA*

LSC

of 234

100 Back SCY

Standard	Cut	Gap
B✓	1:14.69	−4.98
BB	1:09.39	+0.32
A	1:04.09	+5.62
AA	1:01.39	+8.32
AAA	58.69	+11.02
AAAA	56.09	+13.62

PBBB

1:09.71

2025 FG 35th Annual Winter Championships

Dec 13, 2025

🎓 Class of 2029#80of 130 · CT#2,970 USA*

LSC

114

of 249

200 Back SCY

Standard	Cut	Gap
B✓	2:42.19	−2.15
BB	2:30.59	+9.45
A	2:19.09	+20.95
AA	2:13.29	+26.75
AAA	2:07.49	+32.55
AAAA	2:01.69	+38.35

PBB

2:40.04

2024 CT RYWC Regional YMCA Open

Mar 23, 2024

🎓 Class of 2029#87of 105 · CT#3,317 USA*

LSC

117

of 148

50 Breast SCY

Standard	Cut	Gap
B✓	41.09	−7.54
BB✓	38.19	−4.64
A✓	35.19	−1.64
AA✓	33.79	−0.24
AAA	32.29	+1.26
AAAA	30.79	+2.76

PBAA

33.55

2025 FG 35th Annual Winter Championships

Dec 13, 2025

🎓 Class of 2029#17of 125 · CT#791 USA*

LSC

of 134

100 Breast SCY

Standard	Cut	Gap
B✓	1:25.89	−13.78
BB✓	1:19.79	−7.68
A✓	1:13.69	−1.58
AA	1:10.59	+1.52
AAA	1:07.49	+4.62
AAAA	1:04.49	+7.62

PBA

1:12.11

2026 NE OB NEPSAC D1 Championships

Mar 8, 2026

🎓 Class of 2029#20of 127 · CT#1,025 USA*

LSC

of 163

200 Breast SCY

Standard	Cut	Gap
B✓	3:05.99	−26.50
BB✓	2:52.69	−13.20
A	2:39.39	+0.10
AA	2:32.79	+6.70
AAA	2:26.19	+13.30
AAAA	2:19.49	+20.00

PBBB

2:39.49

2026 CT GRYM Regional Champships

Mar 1, 2026

🎓 Class of 2029#23of 92 · CT#1,127 USA*

LSC

of 97

50 Fly SCY

41.91

MR Empire New Year Invitational

Jan 8, 2023

🎓 Class of 2029#115of 120 · CT#4,697 USA*

LSC

177

of 204

100 Fly SCY

1:20.56

2026 CT GRYM January Invite

Jan 18, 2026

🎓 Class of 2029#108of 119 · CT#4,120 USA*

LSC

171

of 201

200 Fly SCY

3:06.55

2025 CT GYWD One Stop #2

Feb 4, 2025

🎓 Class of 2029#62of 64 · CT#2,632 USA*

LSC

of 79

200 IM SCY

Standard	Cut	Gap
B✓	2:46.19	−18.18
BB✓	2:34.29	−6.28
A	2:22.39	+5.62
AA	2:16.49	+11.52
AAA	2:10.59	+17.42
AAAA	2:04.59	+23.42

PBBB

2:28.01

2026 NE OB NEPSAC D1 Championships

Mar 7, 2026

🎓 Class of 2029#69of 125 · CT#2,658 USA*

LSC

112

of 179

400 IM SCY

Standard	Cut	Gap
B✓	5:54.99	−29.01
BB✓	5:29.69	−3.71
A	5:04.29	+21.69
AA	4:51.59	+34.39
AAA	4:38.99	+46.99
AAAA	4:26.29	+59.69

PBBB

5:25.98

2025 CT GRYM October Invite

Oct 10, 2025

🎓 Class of 2029#61of 79 · CT#2,341 USA*

LSC

of 113