swimstats

Josiah Sentosa

Mage 16CABREAUN-06UN-3UNBR

101 plausible swims · 22 meets · 2024-07-25 → 2026-07-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.79 BB+0.40s to A·+1.60s to Sectionals 2026-02-15 2026 MVN Lunar AAPI Festivalvenue
100 Freestyle SCY 54.20 BB+0.71s to A·+3.21s to Sectionals 2026-02-14 2026 MVN Lunar AAPI Festivalvenue
200 Freestyle SCY 1:56.58 A+4.59s to AA·+4.79s to Sectionals 2025-11-22 2025 CA MVN Turkey Classicvenue
500 Freestyle SCY 5:06.57 A+2.28s to AA·+3.88s to Sectionals 2025-10-12 2025 OC Race Series #2 SCY Closed Invitevenue
1000 Freestyle SCY 10:30.02 AA+23.63s to AAA·Sectionals ✓+55.73s to Futures 2025-12-12 2025 CA SCS/RAA WAGvenue
1650 Freestyle SCY 17:32.44 AA+41.55s to AAA·Sectionals ✓+86.95s to Futures 2026-02-14 2026 MVN Lunar AAPI Festivalvenue
50 Backstroke SCY 27.59 BB+0.30s to A·+3.90s to Futures 2025-12-14 2025 CA SCS/RAA WAGvenue
100 Backstroke SCY 57.84 A+2.15s to AA·+2.35s to Sectionals 2025-12-12 2025 CA SCS/RAA WAGvenue
200 Backstroke SCY 2:02.04 A+0.05s to AA·+0.75s to Sectionals 2026-01-31 2026 AZOT H/F BB MIN Leaderboard Invitationalvenue
100 Breaststroke SCY 1:07.27 BB+1.28s to A·+4.08s to Sectionals 2025-12-07 2025 CA STOP December ABC Meetvenue
200 Breaststroke SCY 2:29.82 BB+6.63s to A·+12.53s to Sectionals 2026-03-08 2026 OC RIPT BB MIN Spring Max Championshipsvenue
100 Butterfly SCY 59.70 BB+2.01s to A·+4.51s to Sectionals 2025-11-09 Orange Committee's November ABC Meet SOCALvenue
200 Butterfly SCY 2:13.31 BB+4.12s to A·+9.92s to Sectionals 2025-12-07 2025 CA STOP December ABC Meetvenue
200 Individual Medley SCY 2:08.17 A+3.88s to AA·+4.18s to Sectionals 2025-12-12 2025 CA SCS/RAA WAGvenue
400 Individual Medley SCY 4:30.62 A+4.53s to AA·+5.93s to Sectionals 2026-02-15 2026 MVN Lunar AAPI Festivalvenue
50 Freestyle LCM 28.15 A+1.06s to AA·+1.16s to Sectionals 2026-04-11 2026 FAST Orange Committee April BB Min Meetvenue
400 Freestyle LCM 4:42.70 A+7.01s to AA·+8.31s to Sectionals 2025-06-15 2025 SCS June AG Invite @ La Mirada Armadavenue
800 Freestyle LCM 9:28.27 AA+21.78s to AAA·Sectionals ✓+47.58s to Futures 2025-07-26 2025 CA SCS Summer A/G Champs
1500 Freestyle LCM 17:55.13 AA+23.54s to AAA·Sectionals ✓+76.14s to Futures 2025-07-23 2025 CA SCS Summer A/G Champs
50 Backstroke LCM 30.67 AA+0.88s to AAA·+2.78s to Futures 2026-07-24 2026 CA SCS Summer A/G Champs @ BREAfast pool
100 Backstroke LCM 1:05.07 AA+2.58s to AAA·Sectionals ✓+4.48s to Futures 2026-06-14 ARMADA-2026 SCS June AG Invitevenue
200 Backstroke LCM 2:18.21 AA+2.82s to AAA·Sectionals ✓+6.32s to Futures 2026-06-13 ARMADA-2026 SCS June AG Invitevenue
50 Breaststroke LCM 34.81 A+0.42s to AA·+3.92s to Futures 2026-06-12 ARMADA-2026 SCS June AG Invitevenue
50 Butterfly LCM 29.40 AA+1.21s to AAA·+3.11s to Futures 2026-06-13 ARMADA-2026 SCS June AG Invitevenue
100 Butterfly LCM 1:05.91 A+2.72s to AA·+2.82s to Sectionals 2026-07-11 2026 CA TST July 2026 BB MIN LCvenue
200 Butterfly LCM 2:31.74 BB+4.05s to A·+10.65s to Sectionals 2026-06-12 ARMADA-2026 SCS June AG Invitevenue
200 Individual Medley LCM 2:27.33 A+2.34s to AA·+2.64s to Sectionals 2026-04-12 2026 FAST Orange Committee April BB Min Meetvenue
400 Individual Medley LCM 5:08.43 AA+12.84s to AAA·+0.64s to Sectionals 2026-07-24 2026 CA SCS Summer A/G Champs @ BREAfast pool

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

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 26.12 flying 200 Free Relay (leg 2) 2024-12-14 2024 CA RAA/SCS WAG
100 Freestyle SCY 55.24 flying 400 Free Relay (leg 3) 2025-07-19 2025 CA GOLD OC Summer Championhip SCY
200 Freestyle SCY 1:48.09 flying 800 Free Relay (leg 4) 2024-12-13 2024 CA RAA/SCS WAG
50 Backstroke SCY 30.17 flat 200 Medley Relay 2024-12-15 2024 CA RAA/SCS WAG
100 Backstroke SCY 1:01.11 flat 400 Medley Relay 2024-12-14 2024 CA RAA/SCS WAG
50 Freestyle LCM 27.72 flying 200 Free Relay (leg 3) 2025-06-12 2025 SCS June AG Invite @ La Mirada Armada
200 Freestyle LCM 2:16.18 flying 800 Free Relay (leg 3) 2024-07-25 2024 CA SCS/ BREA Summer A/G Champs
50 Backstroke LCM 31.05 flat 200 Medley Relay 2026-07-24 2026 CA SCS Summer A/G Champs @ BREA
100 Backstroke LCM 1:09.81 flat 400 Medley Relay 2024-07-27 2024 CA SCS/ BREA Summer A/G Champs

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)

EventTime 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)

EventTime 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

28.63
29.21

Front half 28.63s · back half 29.21s

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 1:05.91

30.56
35.35

Front half 30.56s · back half 35.35s

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 5:08.43 RT 0.65s

31.50
38.30
39.90
37.29
45.66
46.67
35.75
33.36

Front half 146.99s · back half 161.44s

Reaction time

fastest 0.56s average 0.673s slowest 0.78s 22 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.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

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 4 swims
1650 Freestyle SCY 17:32.44 2 swims
50 Backstroke SCY 27.59 2 swims
100 Backstroke SCY 57.84 10 swims
200 Backstroke SCY 2:02.04 7 swims
100 Breaststroke SCY 1:07.27 4 swims
200 Breaststroke SCY 2:29.82 3 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 5 swims
1500 Freestyle LCM 17:55.13 2 swims
50 Backstroke LCM 30.67 2 swims
100 Backstroke LCM 1:05.07 10 swims
200 Backstroke LCM 2:18.21 12 swims
50 Breaststroke LCM 34.81 2 swims
50 Butterfly LCM 29.40 1 swim
100 Butterfly LCM 1:05.91 2 swims
200 Butterfly LCM 2:31.74 1 swim
200 Individual Medley LCM 2:27.33 1 swim
400 Individual Medley LCM 5:08.43 4 swims