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runclaxCommunity Local Athletes Index · 5K · 10K · Half Marathon · MarathonSupport us

Duyen Nguyen

F · Age 31 · Sacramento, CA

Runner Index

57.2

Participant

Average of your best 3 races in the past 3 years (any distance, by age-graded performance).

#1

California International Marathon

Marathon · 2025-12-07

64.9% AG

#2

California International Marathon

Marathon · 2024-12-08

61.3% AG

#3

Beer City Half™ Sacramento 10K

10K · 2026-05-09

45.5% AG

Predicted Times

Based on your Runner Index — the average of your three best age-graded performances in the last 3 years. Times reflect your peak level, not a typical race day.

5K

24:27

10K

50:27

Half Marathon

01:50:17

Marathon

03:47:46

Races

4

Total Distance

99.4 km

Best Age-Graded

64.9%

Best Distance

Marathon

Trophy Case

🏆

Best Overall Finish

116th Overall at Beer City Half™ Sacramento 10K · 2026-05-09

🥇

Best Age-Graded

64.9%Local Competitive
⚡

Fastest Times

5K: 55:0510K: 01:03:30Marathon: 03:38:30

Duyen Nguyen

Sacramento, CA · Age 31

Runner Index

57.2

Participant

Total Races

4

Total KM

99.4 km

Career Podiums

0

Favorite Distance

5K

PB at Favorite

55:05

Best Year

2026 (2 races)

runclax — Community Local Athletes Index

Personal Bests

5K

55:05

Running of the Elk

2026-03-29

25.3% AG

10K

01:03:30

Beer City Half™ Sacramento 10K

2026-05-09

45.5% AG

Marathon

03:38:30

California International Marathon

2025-12-07

64.9% AG

Age-Graded Trend

Year by Year

YearRacesBest Age-GradedBest TimeDistance
2024161.3%03:49:1642.2 km
2025164.9%03:38:3042.2 km
2026245.5%55:0515.0 km

Your peers

Runners close to you in age and ability, so you can line up your own little race series.

Race History

RaceDateDistanceTimeOverallAG PlaceAge-Graded
Beer City Half™ Sacramento 10K2026-05-0910K01:03:3011645.5%
Running of the Elk2026-03-295K55:055913225.3%
California International Marathon2025-12-07Marathon03:38:30375864.9%
California International Marathon2024-12-08Marathon03:49:16441961.3%