Oskar Kosloff

Mage 15CAGREENROSEUNUN-1UN-2

216 plausible swims · 39 meets · 2024-07-25 → 2026-06-21

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	24.50	A+0.81s to AA	2025-10-25	TORR Spooky Splash venue
100 Freestyle	SCY	52.19	A+0.20s to AA	2025-11-23	2025 CANY Cranberry venue
200 Freestyle	SCY	1:48.56	AAA+4.77s to AAAA	2026-05-12	2026 Rose Post CIF Closed Invitation 5_12-13_ venue
500 Freestyle	SCY	4:52.22	AAA+9.93s to AAAA	2026-05-13	2026 Rose Post CIF Closed Invitation 5_12-13_ venue
1000 Freestyle	SCY	9:58.68	AAA+10.89s to AAAA	2026-02-28	2026 Pacific Committee SC Chmpionship venue
1650 Freestyle	SCY	17:02.66	AAA+41.87s to AAAA	2025-11-23	2025 CANY Cranberry venue
100 Backstroke	SCY	59.80	BB+0.21s to A	2025-11-23	2025 CANY Cranberry venue
200 Backstroke	SCY	2:11.22	BB+1.13s to A	2025-11-22	2025 CANY Cranberry venue
50 Breaststroke	SCY	31.21	A+0.42s to AA	2025-10-25	TORR Spooky Splash venue
100 Breaststroke	SCY	1:06.01	A+1.42s to AA	2025-11-22	2025 CANY Cranberry venue
200 Breaststroke	SCY	2:18.30	AA+3.51s to AAA	2025-11-01	2025 "Our Rising Tides" 16u SCY P/F Meet venue
50 Butterfly	SCY	26.80	A+0.21s to AA	2025-09-20	Red vs Black venue
100 Butterfly	SCY	57.65	A+1.26s to AA	2025-09-21	2025 TSM Aquatics Season Opener venue
200 Butterfly	SCY	2:03.45	AA+2.46s to AAA	2025-12-14	2025 CA SCS/SCAT WAG venue
200 Individual Medley	SCY	2:04.73	AA+3.54s to AAA	2025-11-01	2025 "Our Rising Tides" 16u SCY P/F Meet venue
300 Individual Medley	SCY	3:28.67		2025-01-26	2025 SCS All-Star Festival slow pool
400 Individual Medley	SCY	4:21.74	AA+1.25s to AAA	2025-12-13	2025 CA SCS/SCAT WAG venue
50 Freestyle	LCM	28.27	A+0.88s to AA	2025-06-29	2025 CA SBSC Semana Nautica LCM Meet venue
100 Freestyle	LCM	1:00.13	A+0.44s to AA	2025-05-17	2025 Rose May Spring Intrasquad venue
200 Freestyle	LCM	2:04.57	AAA+4.58s to AAAA	2026-06-19	2026 CA MVN Fran Crippen SMOC venue
400 Freestyle	LCM	4:24.41	AAA+8.82s to AAAA	2026-06-13	2026 SCS June AG Invite-CANY venue
800 Freestyle	LCM	9:34.86	AA+21.27s to AAA	2026-06-21	2026 CA MVN Fran Crippen SMOC venue
100 Backstroke	LCM	1:12.38	BB+2.79s to A	2025-06-29	2025 CA SBSC Semana Nautica LCM Meet venue
200 Backstroke	LCM	2:45.04	B+1.35s to BB	2026-06-06	2026 BCA June LC Meet venue
50 Breaststroke	LCM	37.10	BB+0.61s to A	2025-04-05	Rose Bowl Aquatics Red vs Black Intrasquad venue
100 Breaststroke	LCM	1:14.54	AA+2.75s to AAA	2025-07-24	2025 CA SCS Summer A/G Champs
200 Breaststroke	LCM	2:39.85	AA+2.76s to AAA	2025-07-26	2025 CA SCS Summer A/G Champs
50 Butterfly	LCM	28.55	AAA+1.16s to AAAA	2026-06-13	2026 SCS June AG Invite-CANY venue
100 Butterfly	LCM	1:03.85	AA+2.16s to AAA	2025-07-25	2025 CA SCS Summer A/G Champs
200 Butterfly	LCM	2:19.16	AA+1.17s to AAA	2026-06-12	2026 SCS June AG Invite-CANY venue
200 Individual Medley	LCM	2:21.43	AA+0.94s to AAA	2026-06-12	2026 SCS June AG Invite-CANY venue
400 Individual Medley	LCM	5:04.65	AA+2.76s to AAA	2025-07-24	2025 CA SCS Summer A/G Champs

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.

IMX / IMR

IMX 15-16 · SCY

4481 points (6/6 events)

Event	Time	Points
500 FR SCY	4:52.22	845
200 BK SCY	2:11.22	600
200 BR SCY	2:18.30	743
200 FL SCY	2:03.45	760
200 IM SCY	2:04.73	747
400 IM SCY	4:21.74	786

IMR 15-16 · LCM

3670 points (5/5 events)

Event	Time	Points
200 FR LCM	2:04.57	839
100 BK LCM	1:12.38	555
100 BR LCM	1:14.54	729
100 FL LCM	1:03.85	733
200 IM LCM	2:21.43	814

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

PR splits

100 Freestyle SCY 52.19

25.21

26.98

Front half 25.21s · back half 26.98s

200 Freestyle SCY 1:48.56

24.75

27.24

28.32

28.25

Front half 51.99s · back half 56.57s

500 Freestyle SCY 4:52.22

26.19

28.58

29.23

29.74

29.73

29.69

29.91

30.10

30.26

28.79

Front half 143.47s · back half 148.75s

1000 Freestyle SCY 9:58.68

27.05

29.58

29.97

30.23

30.26

30.43

30.44

30.39

30.03

30.01

30.04

29.94

30.50

30.28

30.43

30.32

30.39

30.05

29.97

28.37

Front half 298.39s · back half 300.29s

1650 Freestyle SCY 17:02.66

27.21

29.56

30.25

30.49

31.01

30.93

30.98

31.01

30.93

31.91

31.94

31.78

32.07

30.97

31.57

31.61

31.78

31.07

31.59

31.45

31.25

31.49

31.19

31.31

30.98

31.53

30.67

31.15

31.47

30.54

30.80

30.61

29.56

200 Backstroke SCY 2:11.22

30.73

33.93

34.29

32.27

Front half 64.66s · back half 66.56s

100 Breaststroke SCY 1:06.01

31.08

34.93

Front half 31.08s · back half 34.93s

200 Breaststroke SCY 2:18.30

31.55

34.82

35.80

36.13

Front half 66.37s · back half 71.93s

100 Butterfly SCY 57.65

27.07

30.58

Front half 27.07s · back half 30.58s

200 Butterfly SCY 2:03.45

27.90

31.48

32.25

31.82

Front half 59.38s · back half 64.07s

200 Individual Medley SCY 2:04.73

26.89

32.77

36.34

28.73

Front half 59.66s · back half 65.07s

300 Individual Medley SCY 3:28.67

28.84

35.47

36.75

39.38

36.84

31.39

Front half 101.06s · back half 107.61s

400 Individual Medley SCY 4:21.74

27.51

31.43

34.65

35.09

35.83

37.46

30.64

29.13

Front half 128.68s · back half 133.06s

200 Freestyle LCM 2:04.57

28.59

31.12

32.60

32.26

Front half 59.71s · back half 64.86s

400 Freestyle LCM 4:24.41

30.40

32.90

33.24

33.78

33.63

34.02

34.08

32.36

Front half 130.32s · back half 134.09s

800 Freestyle LCM 9:34.86

30.81

32.78

33.39

33.62

33.93

33.78

34.57

33.61

45.41

38.50

38.48

37.34

38.63

37.64

36.89

35.48

Front half 266.49s · back half 308.37s

100 Backstroke LCM 1:12.38

35.30

37.08

Front half 35.30s · back half 37.08s

200 Backstroke LCM 2:45.04

79.26

85.78

Front half 79.26s · back half 85.78s

200 Breaststroke LCM 2:39.85 RT 0.60s

35.47

40.53

41.31

42.54

Front half 76.00s · back half 83.85s

100 Butterfly LCM 1:03.85 RT 0.51s

30.06

33.79

Front half 30.06s · back half 33.79s

200 Butterfly LCM 2:19.16

31.32

34.88

36.40

36.56

Front half 66.20s · back half 72.96s

200 Individual Medley LCM 2:21.43

30.17

37.91

41.03

32.32

Front half 68.08s · back half 73.35s

400 Individual Medley LCM 5:04.65 RT 0.49s

31.10

35.74

40.53

39.81

44.05

43.85

35.35

34.22

Front half 147.18s · back half 157.47s

Reaction time

fastest 0.33s average 0.534s slowest 0.61s 17 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 24.50 8 swims

100 Freestyle SCY 52.19 9 swims

200 Freestyle SCY 1:48.56 13 swims

500 Freestyle SCY 4:52.22 12 swims

1000 Freestyle SCY 9:58.68 10 swims

1650 Freestyle SCY 17:02.66 4 swims

100 Backstroke SCY 59.80 6 swims

200 Backstroke SCY 2:11.22 3 swims

50 Breaststroke SCY 31.21 4 swims

100 Breaststroke SCY 1:06.01 8 swims

200 Breaststroke SCY 2:18.30 11 swims

50 Butterfly SCY 26.80 1 swim

100 Butterfly SCY 57.65 12 swims

200 Butterfly SCY 2:03.45 20 swims

200 Individual Medley SCY 2:04.73 17 swims

300 Individual Medley SCY 3:28.67 1 swim

400 Individual Medley SCY 4:21.74 14 swims

50 Freestyle LCM 28.27 1 swim

100 Freestyle LCM 1:00.13 3 swims

200 Freestyle LCM 2:04.57 4 swims

400 Freestyle LCM 4:24.41 5 swims

800 Freestyle LCM 9:34.86 1 swim

100 Backstroke LCM 1:12.38 1 swim

200 Backstroke LCM 2:45.04 2 swims

50 Breaststroke LCM 37.10 1 swim

100 Breaststroke LCM 1:14.54 7 swims

200 Breaststroke LCM 2:39.85 6 swims

50 Butterfly LCM 28.55 2 swims

100 Butterfly LCM 1:03.85 6 swims

200 Butterfly LCM 2:19.16 11 swims

200 Individual Medley LCM 2:21.43 8 swims

400 Individual Medley LCM 5:04.65 5 swims