Boston Marathon logo
BOSTON MARATHON 2025

Dung Nguyen

Bib: 5334•M

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:54
Rank: #5668
Start → 5K
20:54 | 6:44/mi
10K· 6.21 mi
41:32
Rank: #5222 (+446)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:02:10
Rank: #4951 (+271)
10K → 15K
20:38 | 6:38/mi
20K· 12.43 mi
1:22:56
Rank: #4757 (+194)
15K → 20K
20:46 | 6:41/mi
Half· 13.11 mi
1:27:31
Rank: #4780 (-23)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:43:53
Rank: #4683 (+97)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:05:30
Rank: #4580 (+103)
25K → 30K
21:37 | 6:57/mi
20M
2:15:02
Rank: #4525 (+55)
30K → 20M
9:32 | 7:01/mi
21M
2:22:19
Rank: #4426 (+99)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:27:27
Rank: #4402 (+24)
21M → 35K
5:08 | 6:52/mi
23M
2:36:09
Rank: #4294 (+108)
35K → 23M
8:42 | 6:57/mi
24M
2:42:52
Rank: #4199 (+95)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:48:48
Rank: #4146 (+53)
24M → 40K
5:56 | 6:56/mi
25.2M
2:51:21
Rank: #4122 (+24)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:57:57
Rank: #4024 (+98)
25.2M → Finish
6:36 | 6:29/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:31
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:30:26
Pace6:54 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0820:546:4420:54
6:44
-
10K
6.21 mi10:45:4641:326:4120:38
6:38
-0:06
15K
9.32 mi11:06:241:02:106:4020:38
6:38
0:00
20K
12.43 mi11:27:101:22:566:4020:46
6:41
+0:03
Half
13.11 mi11:31:451:27:316:414:35
6:43
+0:02
25K
15.53 mi11:48:071:43:536:4116:22
6:45
+0:02
30K
18.64 mi12:09:442:05:306:4421:37
6:57
+0:12
20M
20.00 mi12:19:162:15:026:459:32
7:01
+0:04
21M
21.00 mi12:26:332:22:196:477:17
7:17
+0:16
35K
21.75 mi12:31:412:27:276:475:08
6:52
-0:25
23M
23.00 mi12:40:232:36:096:478:42
6:57
+0:05
24M
24.00 mi12:47:062:42:526:476:43
6:43
-0:14
40K
24.85 mi12:53:022:48:486:475:56
6:56
+0:13
25.2M
25.20 mi12:55:352:51:216:482:33
7:24
+0:28
Finish
26.22 mi13:02:112:57:576:486:36
6:29
-0:55

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:29 /mi

Average Pace

6:48 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:07

94% of race

Time at Steady Pace

9:50

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:25:0820:546:4420:54
6:44
#5668
10K
6.21 mi10:45:4641:326:4120:38
6:38
#5222
15K
9.32 mi11:06:241:02:106:4020:38
6:38
#4951
20K
12.43 mi11:27:101:22:566:4020:46
6:41
#4757
Half
13.11 mi11:31:451:27:316:414:35
6:43
#4780
25K
15.53 mi11:48:071:43:536:4116:22
6:45
#4683
30K
18.64 mi12:09:442:05:306:4421:37
6:57
#4580
20M
20.00 mi12:19:162:15:026:459:32
7:01
#4525
21M
21.00 mi12:26:332:22:196:477:17
7:17
#4426
35K
21.75 mi12:31:412:27:276:475:08
6:52
#4402
23M
23.00 mi12:40:232:36:096:478:42
6:57
#4294
24M
24.00 mi12:47:062:42:526:476:43
6:43
#4199
40K
24.85 mi12:53:022:48:486:475:56
6:56
#4146
25.2M
25.20 mi12:55:352:51:216:482:33
7:24
#4122
Finish
26.22 mi13:02:112:57:576:486:36
6:29
#4024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5668523552354575(Top 16%)4282(Top 27%)4282(Top 76%)
10K6.21 mi3.10 mi5222+4464855+3804855+3804786(Top 17%)4476(Top 28%)4476(Top 79%)
15K9.32 mi3.11 mi4951+2714617+2384617+2384575(Top 16%)4282(Top 27%)4282(Top 76%)
20K12.43 mi3.11 mi4757+1944438+1794438+1794286(Top 15%)4009(Top 25%)4009(Top 71%)
Half13.11 mi0.68 mi4780-234457-194457-195346(Top 19%)4901(Top 30%)4901(Top 87%)
25K15.53 mi2.42 mi4683+974364+934364+934471(Top 16%)4131(Top 26%)4131(Top 73%)
30K18.64 mi3.11 mi4580+1034265+994265+994420(Top 16%)4043(Top 25%)4043(Top 72%)
20M20.00 mi1.36 mi4525+554203+624203+624173(Top 15%)3812(Top 24%)3812(Top 68%)
21M21.00 mi1.00 mi4426+994108+954108+953532(Top 12%)3231(Top 20%)3231(Top 57%)
35K21.75 mi0.75 mi4402+244083+254083+254449(Top 16%)3951(Top 25%)3951(Top 70%)
23M23.00 mi1.25 mi4294+1083984+993984+993455(Top 12%)3138(Top 19%)3138(Top 56%)
24M24.00 mi1.00 mi4199+953887+973887+973053(Top 11%)2766(Top 17%)2766(Top 49%)
40K24.85 mi0.85 mi4146+533830+573830+573542(Top 12%)3138(Top 19%)3138(Top 56%)
25.2M25.20 mi0.35 mi4122+243807+233807+232902(Top 10%)2581(Top 16%)2581(Top 46%)
Finish26.22 mi1.02 mi4024+983719+883719+882691(Top 9%)2421(Top 15%)2421(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4575

Males

4282

M18-39

4282

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4786

Males

4476

M18-39

4476

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4575

Males

4282

M18-39

4282

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4286

Males

4009

M18-39

4009

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5346

Males

4901

M18-39

4901

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4471

Males

4131

M18-39

4131

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4420

Males

4043

M18-39

4043

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4173

Males

3812

M18-39

3812

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3532

Males

3231

M18-39

3231

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4449

Males

3951

M18-39

3951

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3455

Males

3138

M18-39

3138

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3053

Males

2766

M18-39

2766

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3542

Males

3138

M18-39

3138

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2902

Males

2581

M18-39

2581

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2691

Males

2421

M18-39

2421

Passing Analysis

Category:
Athletes Passed
2110
Passed By
466
Net Change
+1644
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5668
5K → 10K48640+446#5668#5222
10K → 15K30736+271#5222#4951
15K → 20K23642+194#4951#4757
20K → Half1336-23#4757#4780
Half → 25K14851+97#4780#4683
25K → 30K19794+103#4683#4580
30K → 20M10146+55#4580#4525
20M → 21M12223+99#4525#4426
21M → 35K5632+24#4426#4402
35K → 23M12820+108#4402#4294
23M → 24M10611+95#4294#4199
24M → 40K6714+53#4199#4146
40K → 25.2M3612+24#4146#4122
25.2M → Finish1079+98#4122#4024
TOTALS2110466+1644
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing