Matthew Rivera

Mage 15CARMDAUN-07UN-08

89 plausible swims · 20 meets · 2024-10-12 → 2026-06-14

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 25.74 BB+1.05s to A 2025-10-11 2025 CA Cerritos SC Swim Meet venue
100 Freestyle SCY 55.44 BB+1.15s to A 2026-02-14 2026 Metro Champs @ La Mirada Armada venue
200 Freestyle SCY 1:59.77 BB+1.18s to A 2025-09-13 2025 DARE Launch & Lunge Season Opener venue
500 Freestyle SCY 5:16.39 A+7.30s to AA 2025-11-09 2025 CA Downey Dolphins SC Swim Meet venue
1000 Freestyle SCY 11:08.42 A+24.63s to AA 2025-11-08 2025 CA Downey Dolphins SC Swim Meet venue
100 Backstroke SCY 1:08.11 B+3.62s to BB 2025-09-13 2025 DARE Launch & Lunge Season Opener venue
50 Breaststroke SCY 32.93 BB+0.84s to A 2025-10-12 2025 CA Cerritos SC Swim Meet venue
100 Breaststroke SCY 1:08.61 BB+1.22s to A 2025-12-05 2025 CA Trident Swim Club SC Dec Meet venue
200 Breaststroke SCY 2:26.76 A+5.87s to AA 2026-02-13 2026 Metro Champs @ La Mirada Armada venue
50 Butterfly SCY 28.17 BB+0.38s to A 2025-10-12 2025 CA Cerritos SC Swim Meet venue
100 Butterfly SCY 1:04.48 B+0.69s to BB 2025-10-11 2025 CA Cerritos SC Swim Meet venue
200 Individual Medley SCY 2:19.80 BB+7.61s to A 2025-09-14 2025 DARE Launch & Lunge Season Opener venue
400 Individual Medley SCY 5:23.10 B+15.21s to BB 2024-10-13 2024 CA Cerritos SC Swim Meet venue
50 Freestyle LCM 29.33 BB+0.74s to A 2025-07-26 2025 CA SCS Summer A/G Champs
100 Freestyle LCM 1:03.75 BB+1.46s to A 2026-05-03 26 ESA Dolphins Swim Team venue
200 Freestyle LCM 2:22.43 BB+5.24s to A 2026-05-02 26 ESA Dolphins Swim Team venue
800 Freestyle LCM 11:04.52 B+10.23s to BB 2026-06-14 ARMADA-2026 SCS June AG Invite venue
100 Backstroke LCM 1:29.75 +8.56s to B 2025-05-04 2025 CA Downey Dolphins Swim Team LC Meet slow pool
50 Breaststroke LCM 38.92 BB+2.43s to A 2026-05-03 26 ESA Dolphins Swim Team venue
100 Breaststroke LCM 1:22.33 BB+3.94s to A 2026-04-11 Armada Lc April Meet -April 11-12-2026 venue
200 Breaststroke LCM 2:59.49 BB+8.10s to A 2026-06-14 ARMADA-2026 SCS June AG Invite venue
100 Butterfly LCM 1:20.35 +1.76s to B 2026-05-02 26 ESA Dolphins Swim Team venue
200 Individual Medley LCM 2:46.46 B+0.47s to BB 2026-04-12 Armada Lc April Meet -April 11-12-2026 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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 24.03 flying 200 Free Relay (leg 2) 2024-12-14 2024 CA GWSC/SCS WAG
100 Freestyle SCY 57.19 flying 400 Free Relay (leg 2) 2024-12-15 2024 CA GWSC/SCS WAG
50 Breaststroke SCY 34.58 flying 200 Medley Relay (leg 2) 2024-12-15 2024 CA GWSC/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

2235 points (4/6 events — incomplete)

EventTime Points
500 FR SCY 5:16.39 665
200 BR SCY 2:26.76 622
200 IM SCY 2:19.80 530
400 IM SCY 5:23.10 418
200 BK SCY 0
200 FL SCY 0

IMR 15-16 · SCY

2630 points (5/5 events)

EventTime Points
200 FR SCY 1:59.77 617
100 BK SCY 1:08.11 412
100 BR SCY 1:08.61 594
100 FL SCY 1:04.48 477
200 IM SCY 2:19.80 530

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

PR splits

100 Freestyle SCY 55.44

26.40
29.04

Front half 26.40s · back half 29.04s

200 Freestyle SCY 1:59.77

28.21
29.90
30.97
30.69

Front half 58.11s · back half 61.66s

100 Backstroke SCY 1:08.11

33.56
34.55

Front half 33.56s · back half 34.55s

100 Breaststroke SCY 1:08.61

32.83
35.78

Front half 32.83s · back half 35.78s

200 Breaststroke SCY 2:26.76

33.75
37.24
37.58
38.19

Front half 70.99s · back half 75.77s

100 Butterfly SCY 1:04.48

29.92
34.56

Front half 29.92s · back half 34.56s

200 Individual Medley SCY 2:19.80

30.74
37.20
39.53
32.33

Front half 67.94s · back half 71.86s

200 Freestyle LCM 2:22.43

68.34
74.09

Front half 68.34s · back half 74.09s

800 Freestyle LCM 11:04.52

76.94
82.17
82.17
84.02
171.74
85.20
82.28

100 Breaststroke LCM 1:22.33

38.55
43.78

Front half 38.55s · back half 43.78s

200 Breaststroke LCM 2:59.49

86.93
92.56

Front half 86.93s · back half 92.56s

200 Individual Medley LCM 2:46.46

35.37
46.93
47.58
36.58

Front half 82.30s · back half 84.16s

Reaction time

fastest 0.74s average 0.775s slowest 0.81s 2 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 25.74 5 swims
100 Freestyle SCY 55.44 7 swims
200 Freestyle SCY 1:59.77 8 swims
500 Freestyle SCY 5:16.39 7 swims
1000 Freestyle SCY 11:08.42 4 swims
100 Backstroke SCY 1:08.11 1 swim
50 Breaststroke SCY 32.93 3 swims
100 Breaststroke SCY 1:08.61 14 swims
200 Breaststroke SCY 2:26.76 7 swims
50 Butterfly SCY 28.17 1 swim
100 Butterfly SCY 1:04.48 2 swims
200 Individual Medley SCY 2:19.80 5 swims
400 Individual Medley SCY 5:23.10 1 swim
50 Freestyle LCM 29.33 3 swims
100 Freestyle LCM 1:03.75 4 swims
200 Freestyle LCM 2:22.43 1 swim
800 Freestyle LCM 11:04.52 1 swim
100 Backstroke LCM 1:29.75 1 swim
50 Breaststroke LCM 38.92 1 swim
100 Breaststroke LCM 1:22.33 6 swims
200 Breaststroke LCM 2:59.49 5 swims
100 Butterfly LCM 1:20.35 1 swim
200 Individual Medley LCM 2:46.46 1 swim