Robbie Rosenbaum

Mage 16CZGUILMNMTOZWIBSCIL

130 plausible swims · 16 meets · 2024-03-08 → 2026-03-15

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	20.91	AAAA	2025-12-11	2025 West Speedo Winter Juniors venue
100 Freestyle	SCY	46.05	AAAA	2026-03-15	2026 Speedo Sectionals (North) - West Fargo venue
200 Freestyle	SCY	1:42.24	AAA+0.05s to AAAA	2026-03-14	2026 Speedo Sectionals (North) - West Fargo venue
50 Backstroke	SCY	22.52	AAAA	2026-03-15	2026 Speedo Sectionals (North) - West Fargo venue
100 Backstroke	SCY	48.39	AAAA	2026-03-14	2026 Speedo Sectionals (North) - West Fargo venue
200 Backstroke	SCY	1:46.22	AAAA	2026-03-13	2026 Speedo Sectionals (North) - West Fargo venue
200 Individual Medley	SCY	1:59.82	AA+0.93s to AAA	2025-03-16	2025 MN RSC CZ North Section Spring Champions venue
400 Individual Medley	SCY	4:11.37	AAA+8.38s to AAAA	2025-03-15	2025 MN RSC CZ North Section Spring Champions venue
50 Freestyle	LCM	25.57	AAA+0.78s to AAAA	2024-08-03	2024 Central Zone 14 & U Championship - ND venue
100 Freestyle	LCM	54.41	AAA+0.52s to AAAA	2025-07-23	2025 TYR FUTURES MADISON
200 Freestyle	LCM	2:04.49	AA+0.90s to AAA	2024-07-20	2024 IL Swimming LC Age Group Championships venue
400 Freestyle	LCM	4:42.60	A+6.91s to AA	2024-05-05	Daniel Jaekel Friendship Classic 2024 slow pool
800 Freestyle	LCM	9:53.32	A+22.03s to AA	2024-05-04	Daniel Jaekel Friendship Classic 2024 slow pool
50 Backstroke	LCM	27.58	AAAA	2025-07-25	2025 TYR FUTURES MADISON venue
100 Backstroke	LCM	59.94	AAA+0.35s to AAAA	2025-07-24	2025 TYR FUTURES MADISON venue
200 Backstroke	LCM	2:10.56	AAA+1.37s to AAAA	2025-07-26	2025 TYR FUTURES MADISON venue
200 Breaststroke	LCM	2:54.57	BB+7.08s to A	2024-05-05	Daniel Jaekel Friendship Classic 2024 slow pool
50 Butterfly	LCM	27.45	AAA+0.56s to AAAA	2024-08-03	2024 Central Zone 14 & U Championship - ND venue
100 Butterfly	LCM	1:00.93	AA+0.44s to AAA	2024-08-02	2024 Central Zone 14 & U Championship - ND venue
200 Butterfly	LCM	2:33.82	BB+6.13s to A	2024-05-04	Daniel Jaekel Friendship Classic 2024 slow pool
200 Individual Medley	LCM	2:15.24	AAA+2.85s to AAAA	2024-07-21	2024 IL Swimming LC Age Group Championships venue
400 Individual Medley	LCM	4:49.26	AAA+7.17s to AAAA	2024-07-20	2024 IL Swimming LC Age Group Championships venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.

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	21.33	flat	200 Free Relay	2026-03-13	2026 Speedo Sectionals (North) - West Fargo
100 Freestyle	SCY	45.78	flat	400 Free Relay	2026-03-14	2026 Speedo Sectionals (North) - West Fargo
200 Freestyle	SCY	1:52.41	flat	800 Free Relay	2024-03-08	2024 IL Swimming SC Age Group Championships
200 Freestyle	SCY	1:41.00	flying	800 Free Relay (leg 4)	2026-03-12	2026 Speedo Sectionals (North) - West Fargo
50 Backstroke	SCY	22.55	flat	200 Medley Relay	2026-03-12	2026 Speedo Sectionals (North) - West Fargo
100 Backstroke	SCY	49.05	flat	400 Medley Relay	2026-03-15	2026 Speedo Sectionals (North) - West Fargo
100 Backstroke	LCM	1:01.60	flat	400 Medley Relay	2024-08-03	2024 Central Zone 14 & U Championship - ND

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 · LCM

4682 points (6/6 events)

Event	Time	Points
400 FR LCM	4:42.60	697
200 BK LCM	2:10.56	968
200 BR LCM	2:54.57	583
200 FL LCM	2:33.82	586
200 IM LCM	2:15.24	931
400 IM LCM	4:49.26	917

IMR 15-16 · LCM

3592 points (4/5 events — incomplete)

Event	Time	Points
200 FR LCM	2:04.49	840
100 BK LCM	59.94	977
100 FL LCM	1:00.93	844
200 IM LCM	2:15.24	931
100 BR LCM	—	0

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

PR splits

100 Freestyle SCY 46.05

22.07

23.98

Front half 22.07s · back half 23.98s

200 Freestyle SCY 1:42.24

23.55

25.97

26.28

26.44

Front half 49.52s · back half 52.72s

100 Backstroke SCY 48.39

23.42

24.97

Front half 23.42s · back half 24.97s

200 Backstroke SCY 1:46.22

24.76

27.39

27.30

26.77

Front half 52.15s · back half 54.07s

200 Individual Medley SCY 1:59.82

24.56

30.34

36.86

28.06

Front half 54.90s · back half 64.92s

400 Individual Medley SCY 4:11.37

26.68

31.06

31.55

30.95

37.55

37.95

28.47

27.16

Front half 120.24s · back half 131.13s

100 Freestyle LCM 54.41 split/total mismatch

26.18

2.05

Front half 26.18s · back half 28.23s

200 Freestyle LCM 2:04.49

28.70

31.70

32.57

31.52

Front half 60.40s · back half 64.09s

400 Freestyle LCM 4:42.60

31.98

35.14

35.79

36.36

36.62

36.20

36.12

34.39

Front half 139.27s · back half 143.33s

800 Freestyle LCM 9:53.32

32.64

36.47

37.36

37.40

37.63

37.92

37.59

37.85

37.98

37.92

38.13

37.83

37.53

36.97

37.53

34.57

Front half 294.86s · back half 298.46s

100 Backstroke LCM 59.94

28.90

31.04

Front half 28.90s · back half 31.04s

200 Backstroke LCM 2:10.56

30.12

33.08

34.05

33.31

Front half 63.20s · back half 67.36s

200 Breaststroke LCM 2:54.57

40.65

45.57

44.77

43.58

Front half 86.22s · back half 88.35s

100 Butterfly LCM 1:00.93

28.95

31.98

Front half 28.95s · back half 31.98s

200 Butterfly LCM 2:33.82

32.52

39.01

40.89

41.40

Front half 71.53s · back half 82.29s

200 Individual Medley LCM 2:15.24

28.86

33.71

41.39

31.28

Front half 62.57s · back half 72.67s

400 Individual Medley LCM 4:49.26

29.96

34.24

36.43

36.13

42.46

42.53

34.00

33.51

Front half 136.76s · back half 152.50s

Reaction time

fastest 0.63s average 0.666s slowest 0.71s 10 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Progression

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

50 Freestyle SCY 20.91 8 swims

100 Freestyle SCY 46.05 12 swims

200 Freestyle SCY 1:42.24 12 swims

50 Backstroke SCY 22.52 4 swims

100 Backstroke SCY 48.39 14 swims

200 Backstroke SCY 1:46.22 14 swims

200 Individual Medley SCY 1:59.82 5 swims

400 Individual Medley SCY 4:11.37 7 swims

50 Freestyle LCM 25.57 4 swims

100 Freestyle LCM 54.41 5 swims

200 Freestyle LCM 2:04.49 2 swims

400 Freestyle LCM 4:42.60 1 swim

800 Freestyle LCM 9:53.32 1 swim

50 Backstroke LCM 27.58 2 swims

100 Backstroke LCM 59.94 12 swims

200 Backstroke LCM 2:10.56 12 swims

200 Breaststroke LCM 2:54.57 1 swim

50 Butterfly LCM 27.45 2 swims

100 Butterfly LCM 1:00.93 2 swims

200 Butterfly LCM 2:33.82 1 swim

200 Individual Medley LCM 2:15.24 6 swims

400 Individual Medley LCM 4:49.26 3 swims