Marlene Diaz
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.11 | BB+0.72s to A | 2023-02-19 | CCS Age Group Championship slow pool |
| 100 Freestyle | SCY | 55.26 | AA+0.77s to AAA | 2025-11-22 | HISI Senior Fall Championship (SCY) fast pool |
| 200 Freestyle | SCY | 2:01.44 | AA+4.05s to AAA | 2025-11-21 | HISI Senior Fall Championship (SCY) fast pool |
| 500 Freestyle | SCY | 5:13.31 | AAA+11.32s to AAAA | 2025-02-15 | 2025 SI Presidents' Day Senior Classic venue |
| 1000 Freestyle | SCY | 10:43.57 | AAA+14.88s to AAAA | 2024 President's Day Senior Classic Meet venue | |
| 1650 Freestyle | SCY | 18:16.06 | AAA+43.57s to AAAA | 2025-02-17 | 2025 SI Presidents' Day Senior Classic venue |
| 50 Backstroke | SCY | 30.87 | BB+0.58s to A | 2026-02-16 | 2026 SI Presidents' Day Senior Classic - copi venue |
| 100 Backstroke | SCY | 1:03.47 | A+1.88s to AA | 2025-05-09 | 2025 CIF CENTRAL SECTION D1 CHAMPIONSHIPS venue |
| 200 Backstroke | SCY | 2:13.83 | A+0.34s to AA | 2025-11-02 | 2025 CA Tom Hamilton Memorial Invite venue |
| 200 Breaststroke | SCY | 2:44.77 | BB+4.08s to A | 2025-10-12 | SMSC 47th Fall Invite venue |
| 100 Butterfly | SCY | 1:05.75 | BB+1.66s to A | 2026-02-15 | 2026 SI Presidents' Day Senior Classic - copi venue |
| 200 Butterfly | SCY | 2:23.06 | BB+0.47s to A | 2025-10-12 | SMSC 47th Fall Invite venue |
| 200 Individual Medley | SCY | 2:14.49 | AA+3.00s to AAA | 2025-05-09 | 2025 CIF CENTRAL SECTION D1 CHAMPIONSHIPS venue |
| 400 Individual Medley | SCY | 4:48.37 | AA+6.88s to AAA | 2025-02-16 | 2025 SI Presidents' Day Senior Classic venue |
| 50 Freestyle | LCM | 30.25 | A+0.36s to AA | 2024-08-03 | WZ LCM Senior Champs 2024 venue |
| 100 Freestyle | LCM | 1:04.27 | AA+2.58s to AAA | 2024-07-31 | WZ LCM Senior Champs 2024 venue |
| 200 Freestyle | LCM | 2:18.94 | AA+5.75s to AAA | 2025-04-12 | SLOS 2025 Spring Quadrathlon Challenge slow pool |
| 400 Freestyle | LCM | 4:51.00 | AA+8.91s to AAA | 2024-06-29 | Arena Grand Challenge 2024 venue |
| 800 Freestyle | LCM | 9:50.84 | AA+8.45s to AAA | 2025-01-01 | 2025 tyr go challenge results |
| 1500 Freestyle | LCM | 19:00.91 | AA+21.02s to AAA | 2024-07-30 | WZ LCM Senior Champs 2024 venue |
| 50 Backstroke | LCM | 35.03 | A+1.04s to AA | 2025-06-27 | 2025 TYR GO Challenge venue |
| 100 Backstroke | LCM | 1:14.12 | A+2.23s to AA | 2025-06-28 | 2025 TYR GO Challenge venue |
| 200 Backstroke | LCM | 2:41.26 | BB+0.27s to A | 2025-06-21 | SLOS 2025 Firecracker Invitational venue |
| 100 Breaststroke | LCM | 1:35.33 | B+3.24s to BB | 2025-07-12 | SMSC 2025 July Last Chance Arena Invitational venue |
| 200 Breaststroke | LCM | 3:18.97 | B+1.38s to BB | 2025-05-18 | SMSC 2025 MayDay LCM Arena Invitational slow pool |
| 100 Butterfly | LCM | 1:15.73 | BB+3.34s to A | 2024-06-28 | Arena Grand Challenge 2024 venue |
| 200 Butterfly | LCM | 3:02.87 | B+8.18s to BB | 2025-05-18 | SMSC 2025 MayDay LCM Arena Invitational slow pool |
| 200 Individual Medley | LCM | 2:36.23 | AA+5.54s to AAA | 2025-06-28 | 2025 TYR GO Challenge venue |
| 400 Individual Medley | LCM | 5:33.15 | AA+12.56s to AAA | 2025-04-12 | SLOS 2025 Spring Quadrathlon Challenge slow pool |
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 | 26.22 | flat | 200 Free Relay | 2026-02-15 | 2026 SI Presidents' Day Senior Classic - copi |
| 50 Freestyle | SCY | 23.97 | flying | 200 Medley Relay (leg 4) | 2023-02-17 | CCS Age Group Championship |
| 50 Freestyle | SCY | 25.83 | flying | 200 Free Relay (leg 2) | 2025-02-16 | 2025 SI Presidents' Day Senior Classic |
| 100 Freestyle | SCY | 55.43 | flat | 400 Free Relay | 2024-02-19 | 2024 President's Day Senior Classic Meet |
| 100 Freestyle | SCY | 55.24 | flying | 400 Free Relay (leg 4) | 2025-05-10 | 2025 CIF CENTRAL SECTION D1 CHAMPIONSHIPS |
| 200 Freestyle | SCY | 2:01.47 | flat | 800 Free Relay | 2025-02-15 | 2025 SI Presidents' Day Senior Classic |
| 200 Freestyle | SCY | 2:02.14 | flying | 800 Free Relay (leg 2) | 2024-02-16 | 2024 President's Day Senior Classic Meet |
| 50 Backstroke | SCY | 29.84 | flat | 200 Medley Relay | 2025-11-21 | HISI Senior Fall Championship (SCY) |
| 100 Backstroke | SCY | 1:01.77 | flat | 400 Medley Relay | 2025-11-22 | HISI Senior Fall Championship (SCY) |
| 50 Butterfly | SCY | 23.47 | flying | 200 Medley Relay (leg 3) | 2024-02-16 | 2024 President's Day Senior Classic Meet |
| 100 Butterfly | SCY | 1:03.53 | flying | 400 Medley Relay (leg 3) | 2024-02-17 | 2024 President's Day Senior Classic Meet |
| 50 Freestyle | LCM | 29.07 | flat | 200 Free Relay | 2025-06-27 | 2025 TYR GO Challenge |
| 50 Freestyle | LCM | 29.18 | flying | 200 Free Relay (leg 4) | 2024-08-01 | WZ LCM Senior Champs 2024 |
| 100 Freestyle | LCM | 1:05.67 | flying | 400 Free Relay (leg 3) | 2024-08-02 | WZ LCM Senior Champs 2024 |
| 200 Freestyle | LCM | 1:06.91 | flying | 800 Free Relay (leg 3) | 2024-07-31 | WZ LCM Senior Champs 2024 |
| 50 Backstroke | LCM | 35.18 | flat | 200 Medley Relay | 2025-06-28 | 2025 TYR GO Challenge |
| 100 Backstroke | LCM | 1:11.62 | flat | 400 Medley Relay | 2024-06-29 | Arena Grand Challenge 2024 |
| 50 Butterfly | LCM | 33.20 | flying | 200 Medley Relay (leg 3) | 2024-07-30 | GroupA - WZ LCM Senior Champs 2024 |
| 100 Butterfly | LCM | 1:17.63 | flying | 400 Medley Relay (leg 3) | 2024-08-03 | WZ LCM Senior Champs 2024 |
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
4480 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:13.31 | 884 |
| 200 BK SCY | 2:13.83 | 751 |
| 200 BR SCY | 2:44.77 | 606 |
| 200 FL SCY | 2:23.06 | 657 |
| 200 IM SCY | 2:14.49 | 795 |
| 400 IM SCY | 4:48.37 | 787 |
IMR 15-16 · LCM
3264 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:18.94 | 761 |
| 100 BK LCM | 1:14.12 | 680 |
| 100 BR LCM | 1:35.33 | 467 |
| 100 FL LCM | 1:15.73 | 583 |
| 200 IM LCM | 2:36.23 | 773 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.26
Front half 26.75s · back half 28.51s
200 Freestyle SCY 2:01.44
Front half 59.43s · back half 62.01s
500 Freestyle SCY 5:13.31
Front half 155.67s · back half 157.64s
1000 Freestyle SCY 10:43.57
Front half 320.48s · back half 323.09s
1650 Freestyle SCY 18:16.06
100 Backstroke SCY 1:03.47
Front half 30.70s · back half 32.77s
200 Backstroke SCY 2:13.83 RT 0.68s
Front half 64.84s · back half 68.99s
200 Breaststroke SCY 2:44.77
Front half 79.38s · back half 85.39s
100 Butterfly SCY 1:05.75
Front half 31.02s · back half 34.73s
200 Butterfly SCY 2:23.06
Front half 70.36s · back half 72.70s
200 Individual Medley SCY 2:14.49
Front half 63.29s · back half 71.20s
400 Individual Medley SCY 4:48.37
Front half 141.55s · back half 146.82s
100 Freestyle LCM 1:04.27
Front half 30.92s · back half 33.35s
200 Freestyle LCM 2:18.94
Front half 68.38s · back half 70.56s
400 Freestyle LCM 4:51.00
Front half 146.46s · back half 144.54s
800 Freestyle LCM 9:50.84
Front half 295.85s · back half 294.99s
1500 Freestyle LCM 19:00.91
Front half 572.11s · back half 568.80s
200 Backstroke LCM 2:41.26
Front half 78.79s · back half 82.47s
200 Breaststroke LCM 3:18.97
Front half 99.13s · back half 99.84s
200 Butterfly LCM 3:02.87
Front half 88.49s · back half 94.38s
200 Individual Medley LCM 2:36.23
Front half 73.53s · back half 82.70s
400 Individual Medley LCM 5:33.15
Front half 163.75s · back half 169.40s
Reaction time
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.