Bo Feenstra

Mage 15CZINMIMIWMS

246 plausible swims · 45 meets · 2024-05-11 → 2026-06-26

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.92	A+0.23s to AA	2025-12-13	2025 Holiday Cup venue
100 Freestyle	SCY	50.59	AA+0.80s to AAA	2025-12-14	2025 Holiday Cup venue
200 Freestyle	SCY	1:44.75	AAA+0.96s to AAAA	2026-03-22	2026 SCY MAGS Championship Meet fast pool
500 Freestyle	SCY	4:37.67	AAAA	2026-03-21	2026 SCY MAGS Championship Meet fast pool
1000 Freestyle	SCY	10:03.52	AAA+15.73s to AAAA	2025-03-21	2025 ULTRA Championship Meet fast pool
1650 Freestyle	SCY	16:01.67	AAAA	2026-03-22	2026 SCY MAGS Championship Meet fast pool
100 Backstroke	SCY	1:08.60	B+4.11s to BB	2024-06-08	2024 Zeeland Summer Classic venue
200 Backstroke	SCY	2:05.22	A+0.53s to AA	2025-12-06	EGRA 2025 Winter Washout venue
100 Breaststroke	SCY	1:06.80	A+2.21s to AA	2026-01-10	2026 Zeeland Winter Classic venue
50 Butterfly	SCY	29.80	BB+2.01s to A	2024-05-18	LAC Spring Tune-UP venue
100 Butterfly	SCY	54.72	AA+0.73s to AAA	2026-02-07	2026 Michigan Open venue
200 Butterfly	SCY	1:58.26	AAA+2.77s to AAAA	2026-03-20	2026 SCY MAGS Championship Meet
100 Individual Medley	SCY	1:00.12		2025-10-18	2025 WMS Boo Bash slow pool
200 Individual Medley	SCY	1:58.27	AAA+2.58s to AAAA	2026-03-20	2026 SCY MAGS Championship Meet fast pool
400 Individual Medley	SCY	4:14.80	AAA+6.11s to AAAA	2026-02-08	2026 Michigan Open venue
100 Freestyle	SCM	59.51	A+2.02s to AA	2025-05-10	2025 WMS Spring Splash slow pool
200 Freestyle	SCM	2:20.20	BB+9.21s to A	2024-05-11	2024 WMS Spring Splash slow pool
400 Freestyle	SCM	4:24.45	AA+5.76s to AAA	2025-05-10	2025 WMS Spring Splash slow pool
50 Butterfly	SCM	30.25	A+0.86s to AA	2025-05-10	2025 WMS Spring Splash slow pool
100 Butterfly	SCM	1:06.56	BB+1.47s to A	2025-05-10	2025 WMS Spring Splash slow pool
50 Freestyle	LCM	27.12	AA+0.93s to AAA	2026-06-06	MLA Big Red Challenge fast pool
100 Freestyle	LCM	57.81	AA+0.72s to AAA	2026-06-07	MLA Big Red Challenge fast pool
200 Freestyle	LCM	2:02.34	AAA+2.35s to AAAA	2026-06-06	MLA Big Red Challenge fast pool
400 Freestyle	LCM	4:15.59	AAAA	2026-06-05	MLA Big Red Challenge fast pool
800 Freestyle	LCM	8:53.00	AAA+4.51s to AAAA	2025-07-20	2025 LC MAGS Championship Meet fast pool
1500 Freestyle	LCM	16:52.24	AAAA	2026-03-26	2026 Central Zone East Spring Speedo Sectiona venue
100 Backstroke	LCM	1:06.66	AA+2.87s to AAA	2026-06-06	MLA Big Red Challenge fast pool
200 Backstroke	LCM	2:41.51	BB+10.42s to A	2024-06-02	MLA Big Red Challenge venue
100 Breaststroke	LCM	1:32.28	+0.89s to B	2024-06-02	MLA Big Red Challenge venue
50 Butterfly	LCM	30.66	A+0.67s to AA	2025-05-02	2025 Calvin Early Bird Invite LCM venue
100 Butterfly	LCM	1:06.15	A+1.66s to AA	2026-06-21	2026 Summer Solstice Meet venue
200 Butterfly	LCM	2:20.63	AA+2.64s to AAA	2025-07-18	2025 LC MAGS Championship Meet fast pool
200 Individual Medley	LCM	2:19.28	AAA+5.19s to AAAA	2026-06-07	MLA Big Red Challenge fast pool
400 Individual Medley	LCM	5:04.25	AA+2.36s to AAA	2025-06-27	2025 CW Eric Namesnik Memorial Open venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	SCY	22.61	flying	200 Free Relay (leg 4)	2026-03-22	2026 SCY MAGS Championship Meet
50 Freestyle	SCY	22.49	flying	200 Medley Relay (leg 4)	2026-03-20	2026 SCY MAGS Championship Meet
100 Freestyle	SCY	52.42	flat	400 Free Relay	2025-03-07	2025 SCY MAGS Championship Meet
100 Freestyle	SCY	48.93	flying	400 Free Relay (leg 4)	2026-03-20	2026 SCY MAGS Championship Meet
50 Breaststroke	SCY	33.79	flying	200 Medley Relay (leg 2)	2025-01-11	2025 Zeeland Winter Classic
100 Breaststroke	SCY	1:03.18	flying	400 Medley Relay (leg 2)	2026-03-21	2026 SCY MAGS Championship Meet
50 Butterfly	SCY	24.84	flying	200 Medley Relay (leg 3)	2026-01-10	2026 Zeeland Winter Classic
50 Backstroke	SCM	36.43	flat	200 Medley Relay	2024-05-11	2024 WMS Spring Splash
50 Freestyle	LCM	26.64	flying	200 Medley Relay (leg 4)	2025-07-19	2025 LC MAGS Championship Meet
100 Freestyle	LCM	1:03.69	flat	400 Free Relay	2024-07-19	2024 MAGS Long Course Championship Meet
200 Freestyle	LCM	1:18.42	flying	800 Free Relay (leg 2)	2024-07-20	2024 MAGS Long Course Championship Meet

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

IMX / IMR

IMX 15-16 · SCY

4268 points (5/6 events — incomplete)

Event	Time	Points
500 FR SCY	4:37.67	985
200 BK SCY	2:05.22	690
200 FL SCY	1:58.26	865
200 IM SCY	1:58.27	876
400 IM SCY	4:14.80	852
200 BR SCY	—	0

IMR 15-16 · SCY

3626 points (5/5 events)

Event	Time	Points
200 FR SCY	1:44.75	923
100 BK SCY	1:08.60	403
100 BR SCY	1:06.80	644
100 FL SCY	54.72	780
200 IM SCY	1:58.27	876

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 50.59

24.90

25.69

Front half 24.90s · back half 25.69s

200 Freestyle SCY 1:44.75

24.69

26.63

27.23

26.20

Front half 51.32s · back half 53.43s

500 Freestyle SCY 4:37.67

25.62

27.81

28.16

28.23

28.24

27.95

28.11

28.00

28.30

27.25

Front half 138.06s · back half 139.61s

1000 Freestyle SCY 10:03.52

27.21

30.04

29.98

30.31

30.46

30.53

30.76

31.09

30.46

30.62

30.80

30.71

31.06

30.69

30.40

30.34

29.99

29.43

28.24

Front half 301.46s · back half 302.06s

1650 Freestyle SCY 16:01.67

26.21

28.51

28.91

29.45

28.78

29.13

29.20

29.32

29.33

28.89

29.21

29.81

29.13

29.71

29.31

29.45

29.30

29.56

29.48

29.52

29.13

29.55

29.48

29.55

29.34

29.84

29.50

29.04

28.83

27.06

100 Backstroke SCY 1:08.60

34.37

34.23

Front half 34.37s · back half 34.23s

200 Backstroke SCY 2:05.22

29.95

31.71

32.06

31.50

Front half 61.66s · back half 63.56s

100 Breaststroke SCY 1:06.80

32.10

34.70

Front half 32.10s · back half 34.70s

100 Butterfly SCY 54.72

26.47

28.25

Front half 26.47s · back half 28.25s

100 Individual Medley SCY 1:00.12

27.58

32.54

Front half 27.58s · back half 32.54s

200 Individual Medley SCY 1:58.27

26.25

29.15

35.86

27.01

Front half 55.40s · back half 62.87s

400 Individual Medley SCY 4:14.80

27.83

30.94

32.67

31.18

38.00

37.65

29.29

27.24

Front half 122.62s · back half 132.18s

100 Freestyle SCM 59.51

28.88

30.63

Front half 28.88s · back half 30.63s

200 Freestyle SCM 2:20.20

33.00

35.80

36.17

35.23

Front half 68.80s · back half 71.40s

400 Freestyle SCM 4:24.45

30.18

33.28

33.48

33.74

34.13

33.64

33.60

32.40

Front half 130.68s · back half 133.77s

100 Butterfly SCM 1:06.56

31.23

35.33

Front half 31.23s · back half 35.33s

100 Freestyle LCM 57.81

28.45

29.36

Front half 28.45s · back half 29.36s

200 Freestyle LCM 2:02.34

28.87

30.85

31.43

31.19

Front half 59.72s · back half 62.62s

400 Freestyle LCM 4:15.59

29.60

31.73

32.30

32.66

32.60

32.55

32.30

31.85

Front half 126.29s · back half 129.30s

800 Freestyle LCM 8:53.00

30.69

32.99

30.93

36.27

33.65

34.39

33.95

34.14

33.85

33.93

33.75

33.42

32.91

32.77

32.45

Front half 267.01s · back half 265.99s

1500 Freestyle LCM 16:52.24

30.39

32.65

33.38

33.25

33.40

33.30

33.65

33.68

33.25

33.55

33.64

33.96

33.57

33.77

33.85

33.68

33.93

34.36

34.23

34.29

34.33

34.75

34.41

34.61

34.66

34.67

34.21

34.36

34.08

32.38

Front half 499.29s · back half 512.95s

100 Backstroke LCM 1:06.66

33.18

33.48

Front half 33.18s · back half 33.48s

200 Backstroke LCM 2:41.51

38.95

41.74

41.17

39.65

Front half 80.69s · back half 80.82s

100 Breaststroke LCM 1:32.28

43.65

48.63

Front half 43.65s · back half 48.63s

100 Butterfly LCM 1:06.15

32.18

33.97

Front half 32.18s · back half 33.97s

200 Butterfly LCM 2:20.63

31.55

35.60

36.85

36.63

Front half 67.15s · back half 73.48s

200 Individual Medley LCM 2:19.28

30.60

35.47

42.45

30.76

Front half 66.07s · back half 73.21s

400 Individual Medley LCM 5:04.25

32.26

36.83

41.37

40.02

43.91

44.73

33.38

31.75

Front half 150.48s · back half 153.77s

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 23.92 6 swims

100 Freestyle SCY 50.59 20 swims

200 Freestyle SCY 1:44.75 24 swims

500 Freestyle SCY 4:37.67 24 swims

1000 Freestyle SCY 10:03.52 5 swims

1650 Freestyle SCY 16:01.67 11 swims

100 Backstroke SCY 1:08.60 2 swims

200 Backstroke SCY 2:05.22 2 swims

100 Breaststroke SCY 1:06.80 2 swims

50 Butterfly SCY 29.80 1 swim

100 Butterfly SCY 54.72 9 swims

200 Butterfly SCY 1:58.26 7 swims

100 Individual Medley SCY 1:00.12 1 swim

200 Individual Medley SCY 1:58.27 10 swims

400 Individual Medley SCY 4:14.80 8 swims

100 Freestyle SCM 59.51 2 swims

200 Freestyle SCM 2:20.20 1 swim

400 Freestyle SCM 4:24.45 2 swims

50 Butterfly SCM 30.25 2 swims

100 Butterfly SCM 1:06.56 1 swim

50 Freestyle LCM 27.12 7 swims

100 Freestyle LCM 57.81 10 swims

200 Freestyle LCM 2:02.34 22 swims

400 Freestyle LCM 4:15.59 23 swims

800 Freestyle LCM 8:53.00 7 swims

1500 Freestyle LCM 16:52.24 7 swims

100 Backstroke LCM 1:06.66 3 swims

200 Backstroke LCM 2:41.51 4 swims

100 Breaststroke LCM 1:32.28 1 swim

50 Butterfly LCM 30.66 4 swims

100 Butterfly LCM 1:06.15 3 swims

200 Butterfly LCM 2:20.63 4 swims

200 Individual Medley LCM 2:19.28 7 swims

400 Individual Medley LCM 5:04.25 4 swims