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BOSTON MARATHON 2025

Duy Nguyen

Bib: 32348•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:02
Rank: #23715
Start → 5K
29:02 | 9:21/mi
10K· 6.21 mi
58:59
Rank: #24157 (-442)
5K → 10K
29:57 | 9:38/mi
15K· 9.32 mi
1:28:19
Rank: #23971 (+186)
10K → 15K
29:20 | 9:26/mi
20K· 12.43 mi
2:00:50
Rank: #24355 (-384)
15K → 20K
32:31 | 10:28/mi
Half· 13.11 mi
2:07:26
Rank: #24331 (+24)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:33:35
Rank: #24472 (-141)
Half → 25K
26:09 | 10:47/mi
30K· 18.64 mi
3:12:33
Rank: #24930 (-458)
25K → 30K
38:58 | 12:33/mi
20M
3:29:06
Rank: #24987 (-57)
30K → 20M
16:33 | 12:11/mi
21M
3:42:13
Rank: #25022 (-35)
20M → 21M
13:07 | 13:07/mi
35K· 21.75 mi
3:50:40
Rank: #25031 (-9)
21M → 35K
8:27 | 11:18/mi
23M
4:06:03
Rank: #25077 (-46)
35K → 23M
15:23 | 12:17/mi
24M
4:17:05
Rank: #25035 (+42)
23M → 24M
11:02 | 11:02/mi
40K· 24.85 mi
4:26:53
Rank: #24993 (+42)
24M → 40K
9:48 | 11:28/mi
25.2M
4:30:53
Rank: #24970 (+23)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
4:41:33
Rank: #24961 (+9)
25.2M → Finish
10:40 | 10:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:26
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:34:07
Pace11:45 /mi
📊Positive Split: 20.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1429:029:2129:02
9:21
-
10K
6.21 mi12:25:1158:599:3029:57
9:38
+0:17
15K
9.32 mi12:54:311:28:199:2929:20
9:26
-0:12
20K
12.43 mi13:27:022:00:509:4332:31
10:28
+1:02
Half
13.11 mi13:33:382:07:269:436:36
9:40
-0:48
25K
15.53 mi13:59:472:33:359:5326:09
10:47
+1:07
30K
18.64 mi14:38:453:12:3310:2038:58
12:33
+1:46
20M
20.00 mi14:55:183:29:0610:2716:33
12:11
-0:22
21M
21.00 mi15:08:253:42:1310:3513:07
13:07
+0:56
35K
21.75 mi15:16:523:50:4010:368:27
11:18
-1:49
23M
23.00 mi15:32:154:06:0310:4215:23
12:17
+0:59
24M
24.00 mi15:43:174:17:0510:4311:02
11:02
-1:15
40K
24.85 mi15:53:054:26:5310:449:48
11:28
+0:26
25.2M
25.20 mi15:57:054:30:5310:454:00
11:36
+0:08
Finish
26.22 mi16:07:454:41:3310:4510:40
10:28
-1:08

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

9:21 /mi

Average Pace

10:45 /mi

Slowest Pace

13:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:55

34% of race

Time at Steady Pace

1:42:37

36% of race

Time at Slower Pace

1:24:01

30% of race

Average Pace: 10:44 /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 mi11:55:1429:029:2129:02
9:21
#23715
10K
6.21 mi12:25:1158:599:3029:57
9:38
#24157
15K
9.32 mi12:54:311:28:199:2929:20
9:26
#23971
20K
12.43 mi13:27:022:00:509:4332:31
10:28
#24355
Half
13.11 mi13:33:382:07:269:436:36
9:40
#24331
25K
15.53 mi13:59:472:33:359:5326:09
10:47
#24472
30K
18.64 mi14:38:453:12:3310:2038:58
12:33
#24930
20M
20.00 mi14:55:183:29:0610:2716:33
12:11
#24987
21M
21.00 mi15:08:253:42:1310:3513:07
13:07
#25022
35K
21.75 mi15:16:523:50:4010:368:27
11:18
#25031
23M
23.00 mi15:32:154:06:0310:4215:23
12:17
#25077
24M
24.00 mi15:43:174:17:0510:4311:02
11:02
#25035
40K
24.85 mi15:53:054:26:5310:449:48
11:28
#24993
25.2M
25.20 mi15:57:054:30:5310:454:00
11:36
#24970
Finish
26.22 mi16:07:454:41:3310:4510:40
10:28
#24961
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23715141141411423576(Top 83%)14095(Top 88%)14095(Top 250%)
10K6.21 mi3.10 mi24157-44214322-20814322-20824456(Top 86%)14454(Top 90%)14454(Top 256%)
15K9.32 mi3.11 mi23971+18614250+7214250+7223576(Top 83%)14095(Top 88%)14095(Top 250%)
20K12.43 mi3.11 mi24355-38414396-14614396-14625131(Top 88%)14731(Top 91%)14731(Top 261%)
Half13.11 mi0.68 mi24331+2414379+1714379+1724030(Top 85%)14251(Top 88%)14251(Top 253%)
25K15.53 mi2.42 mi24472-14114442-6314442-6324879(Top 88%)14596(Top 91%)14596(Top 259%)
30K18.64 mi3.11 mi24930-45814627-18514627-18526219(Top 92%)15078(Top 94%)15078(Top 267%)
20M20.00 mi1.36 mi24987-5714635-814635-825509(Top 90%)14684(Top 91%)14684(Top 260%)
21M21.00 mi1.00 mi25022-3514640-514640-525204(Top 89%)14469(Top 90%)14469(Top 256%)
35K21.75 mi0.75 mi25031-914635+514635+524769(Top 87%)14246(Top 88%)14246(Top 252%)
23M23.00 mi1.25 mi25077-4614639-414639-425523(Top 90%)14591(Top 91%)14591(Top 259%)
24M24.00 mi1.00 mi25035+4214612+2714612+2724058(Top 85%)13854(Top 86%)13854(Top 246%)
40K24.85 mi0.85 mi24993+4214580+3214580+3224065(Top 85%)13810(Top 86%)13810(Top 245%)
25.2M25.20 mi0.35 mi24970+2314568+1214568+1222305(Top 79%)12955(Top 80%)12955(Top 230%)
Finish26.22 mi1.02 mi24961+914559+914559+924207(Top 85%)13875(Top 86%)13875(Top 246%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

23576

Males

14095

M18-39

14095

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24456

Males

14454

M18-39

14454

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

23576

Males

14095

M18-39

14095

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25131

Males

14731

M18-39

14731

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24030

Males

14251

M18-39

14251

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

24879

Males

14596

M18-39

14596

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

26219

Males

15078

M18-39

15078

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25509

Males

14684

M18-39

14684

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25204

Males

14469

M18-39

14469

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24769

Males

14246

M18-39

14246

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25523

Males

14591

M18-39

14591

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24058

Males

13854

M18-39

13854

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24065

Males

13810

M18-39

13810

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22305

Males

12955

M18-39

12955

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24207

Males

13875

M18-39

13875

Passing Analysis

Category:
Athletes Passed
825
Passed By
2071
Net Change
-1246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23715
5K → 10K90532-442#23715#24157
10K → 15K25468+186#24157#23971
15K → 20K42426-384#23971#24355
20K → Half3511+24#24355#24331
Half → 25K74215-141#24331#24472
25K → 30K37495-458#24472#24930
30K → 20M3693-57#24930#24987
20M → 21M3469-35#24987#25022
21M → 35K2130-9#25022#25031
35K → 23M2672-46#25031#25077
23M → 24M5311+42#25077#25035
24M → 40K5917+42#25035#24993
40K → 25.2M296+23#24993#24970
25.2M → Finish3526+9#24970#24961
TOTALS8252071-1246
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing