Josiah Sentosa

Mage 16CABREAUN-06UN-3UNBR

93 plausible swims · 21 meets · 2024-07-25 → 2026-06-14

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	24.79	BB+0.40s to A	2026-02-15	2026 MVN Lunar AAPI Festival venue
100 Freestyle	SCY	54.20	BB+0.71s to A	2026-02-14	2026 MVN Lunar AAPI Festival venue
200 Freestyle	SCY	1:56.58	A+4.59s to AA	2025-11-22	2025 CA MVN Turkey Classic venue
500 Freestyle	SCY	5:06.57	A+2.28s to AA	2025-10-12	2025 OC Race Series #2 SCY Closed Invite venue
1000 Freestyle	SCY	10:30.02	AA+23.63s to AAA	2025-12-12	2025 CA SCS/RAA WAG venue
1650 Freestyle	SCY	17:32.44	AA+41.55s to AAA	2026-02-14	2026 MVN Lunar AAPI Festival venue
50 Backstroke	SCY	27.59	BB+0.30s to A	2025-12-14	2025 CA SCS/RAA WAG venue
100 Backstroke	SCY	57.84	A+2.15s to AA	2025-12-12	2025 CA SCS/RAA WAG venue
200 Backstroke	SCY	2:02.04	A+0.05s to AA	2026-01-31	2026 AZOT H/F BB MIN Leaderboard Invitational venue
100 Breaststroke	SCY	1:07.27	BB+1.28s to A	2025-12-07	2025 CA STOP December ABC Meet venue
200 Breaststroke	SCY	2:29.82	BB+6.63s to A	2026-03-08	2026 OC RIPT BB MIN Spring Max Championships venue
100 Butterfly	SCY	59.70	BB+2.01s to A	2025-11-09	Orange Committee's November ABC Meet SOCAL venue
200 Butterfly	SCY	2:13.31	BB+4.12s to A	2025-12-07	2025 CA STOP December ABC Meet venue
200 Individual Medley	SCY	2:08.17	A+3.88s to AA	2025-12-12	2025 CA SCS/RAA WAG venue
400 Individual Medley	SCY	4:30.62	A+4.53s to AA	2026-02-15	2026 MVN Lunar AAPI Festival venue
50 Freestyle	LCM	28.15	A+1.06s to AA	2026-04-11	2026 FAST Orange Committee April BB Min Meet venue
400 Freestyle	LCM	4:42.70	A+7.01s to AA	2025-06-15	2025 SCS June AG Invite @ La Mirada Armada venue
800 Freestyle	LCM	9:28.27	AA+21.78s to AAA	2025-07-26	2025 CA SCS Summer A/G Champs
1500 Freestyle	LCM	17:55.13	AA+23.54s to AAA	2025-07-23	2025 CA SCS Summer A/G Champs
100 Backstroke	LCM	1:05.07	AA+2.58s to AAA	2026-06-14	ARMADA-2026 SCS June AG Invite venue
200 Backstroke	LCM	2:18.21	AA+2.82s to AAA	2026-06-13	ARMADA-2026 SCS June AG Invite venue
50 Breaststroke	LCM	34.81	A+0.42s to AA	2026-06-12	ARMADA-2026 SCS June AG Invite venue
50 Butterfly	LCM	29.40	AA+1.21s to AAA	2026-06-13	ARMADA-2026 SCS June AG Invite venue
100 Butterfly	LCM	1:08.16	BB+2.17s to A	2026-05-02	2026 CA MVN May BB Min LCM venue
200 Butterfly	LCM	2:31.74	BB+4.05s to A	2026-06-12	ARMADA-2026 SCS June AG Invite venue
200 Individual Medley	LCM	2:27.33	A+2.34s to AA	2026-04-12	2026 FAST Orange Committee April BB Min Meet venue
400 Individual Medley	LCM	5:14.57	A+5.58s to AA	2025-07-24	2025 CA SCS Summer A/G Champs

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

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
200 Freestyle	SCY	1:48.09	flying	800 Free Relay (leg 4)	2024-12-13	2024 CA RAA/SCS WAG

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

4064 points (6/6 events)

Event	Time	Points
500 FR SCY	5:06.57	731
200 BK SCY	2:02.04	746
200 BR SCY	2:29.82	584
200 FL SCY	2:13.31	604
200 IM SCY	2:08.17	688
400 IM SCY	4:30.62	711

IMR 15-16 · SCY

3261 points (5/5 events)

Event	Time	Points
200 FR SCY	1:56.58	669
100 BK SCY	57.84	673
100 BR SCY	1:07.27	630
100 FL SCY	59.70	601
200 IM SCY	2:08.17	688

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

PR splits

100 Freestyle SCY 54.20

26.33

27.87

Front half 26.33s · back half 27.87s

200 Freestyle SCY 1:56.58

26.85

29.33

30.33

30.07

Front half 56.18s · back half 60.40s

500 Freestyle SCY 5:06.57

27.61

30.20

30.86

31.04

31.21

31.44

31.65

31.60

31.26

29.70

Front half 150.92s · back half 155.65s

1000 Freestyle SCY 10:30.02

28.22

30.78

31.02

31.28

31.66

31.54

31.94

31.90

32.08

31.89

31.69

31.99

31.96

32.00

32.23

32.01

31.93

32.05

31.72

30.13

Front half 312.31s · back half 317.71s

1650 Freestyle SCY 17:32.44

28.84

31.35

31.72

31.87

31.97

32.23

32.27

32.17

32.23

32.37

32.32

32.56

32.45

32.46

31.97

32.37

32.47

32.18

31.96

32.01

31.82

31.92

31.87

31.67

31.97

32.14

32.02

32.19

31.92

31.97

32.09

31.23

29.86

100 Backstroke SCY 57.84

28.57

29.27

Front half 28.57s · back half 29.27s

200 Backstroke SCY 2:02.04

28.98

30.65

31.34

31.07

Front half 59.63s · back half 62.41s

100 Breaststroke SCY 1:07.27

31.98

35.29

Front half 31.98s · back half 35.29s

200 Breaststroke SCY 2:29.82

33.53

38.45

39.26

38.58

Front half 71.98s · back half 77.84s

100 Butterfly SCY 59.70

27.95

31.75

Front half 27.95s · back half 31.75s

200 Butterfly SCY 2:13.31

29.31

32.95

35.37

35.68

Front half 62.26s · back half 71.05s

200 Individual Medley SCY 2:08.17

28.90

31.86

37.77

29.64

Front half 60.76s · back half 67.41s

400 Individual Medley SCY 4:30.62

28.95

33.31

34.18

32.23

39.32

40.21

32.37

30.05

Front half 128.67s · back half 141.95s

800 Freestyle LCM 9:28.27 RT 0.64s

66.53

71.24

71.91

72.55

72.58

71.73

71.69

70.04

Front half 282.23s · back half 286.04s

1500 Freestyle LCM 17:55.13 RT 0.66s

31.72

34.43

35.07

35.33

35.67

36.17

36.13

36.43

36.22

36.02

35.99

36.08

35.89

36.57

36.19

36.41

35.98

36.57

35.73

36.39

36.11

36.41

36.30

36.78

36.31

36.30

36.16

36.28

35.20

34.29

Front half 533.91s · back half 541.22s

200 Backstroke LCM 2:18.21

67.61

70.60

Front half 67.61s · back half 70.60s

100 Butterfly LCM 1:08.16

30.61

37.55

Front half 30.61s · back half 37.55s

200 Butterfly LCM 2:31.74

70.75

80.99

Front half 70.75s · back half 80.99s

200 Individual Medley LCM 2:27.33

31.56

36.70

45.01

34.06

Front half 68.26s · back half 79.07s

400 Individual Medley LCM 5:14.57 RT 0.65s

71.03

78.26

93.62

71.66

Front half 149.29s · back half 165.28s

Reaction time

fastest 0.61s average 0.689s slowest 0.78s 12 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 24.79 3 swims

100 Freestyle SCY 54.20 4 swims

200 Freestyle SCY 1:56.58 3 swims

500 Freestyle SCY 5:06.57 3 swims

1000 Freestyle SCY 10:30.02 5 swims

1650 Freestyle SCY 17:32.44 3 swims

50 Backstroke SCY 27.59 2 swims

100 Backstroke SCY 57.84 11 swims

200 Backstroke SCY 2:02.04 8 swims

100 Breaststroke SCY 1:07.27 4 swims

200 Breaststroke SCY 2:29.82 4 swims

100 Butterfly SCY 59.70 3 swims

200 Butterfly SCY 2:13.31 2 swims

200 Individual Medley SCY 2:08.17 3 swims

400 Individual Medley SCY 4:30.62 2 swims

50 Freestyle LCM 28.15 1 swim

400 Freestyle LCM 4:42.70 2 swims

800 Freestyle LCM 9:28.27 4 swims

1500 Freestyle LCM 17:55.13 1 swim

100 Backstroke LCM 1:05.07 8 swims

200 Backstroke LCM 2:18.21 9 swims

50 Breaststroke LCM 34.81 2 swims

50 Butterfly LCM 29.40 1 swim

100 Butterfly LCM 1:08.16 1 swim

200 Butterfly LCM 2:31.74 1 swim

200 Individual Medley LCM 2:27.33 1 swim

400 Individual Medley LCM 5:14.57 2 swims