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BOSTON MARATHON 2025

Andrew Nguyen

Bib: 11374•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:53
Rank: #10989
Start → 5K
22:53 | 7:22/mi
10K· 6.21 mi
45:26
Rank: #10431 (+558)
5K → 10K
22:33 | 7:15/mi
15K· 9.32 mi
1:08:11
Rank: #10339 (+92)
10K → 15K
22:45 | 7:19/mi
20K· 12.43 mi
1:31:24
Rank: #10346 (-7)
15K → 20K
23:13 | 7:28/mi
Half· 13.11 mi
1:36:25
Rank: #10343 (+3)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:54:34
Rank: #10230 (+113)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:18:56
Rank: #10175 (+55)
25K → 30K
24:22 | 7:51/mi
20M
2:30:14
Rank: #10348 (-173)
30K → 20M
11:18 | 8:19/mi
21M
2:38:50
Rank: #10361 (-13)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
2:44:37
Rank: #10359 (+2)
21M → 35K
5:47 | 7:44/mi
23M
2:54:24
Rank: #10212 (+147)
35K → 23M
9:47 | 7:49/mi
24M
3:02:04
Rank: #10109 (+103)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:08:48
Rank: #10034 (+75)
24M → 40K
6:44 | 7:53/mi
25.2M
3:11:39
Rank: #9967 (+67)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:19:13
Rank: #9896 (+71)
25.2M → Finish
7:34 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:25
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:48
Pace7:51 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3222:537:2222:53
7:22
-
10K
6.21 mi11:14:0545:267:1922:33
7:15
-0:07
15K
9.32 mi11:36:501:08:117:1922:45
7:19
+0:04
20K
12.43 mi12:00:031:31:247:2123:13
7:28
+0:09
Half
13.11 mi12:05:041:36:257:215:01
7:21
-0:07
25K
15.53 mi12:23:131:54:347:2318:09
7:29
+0:08
30K
18.64 mi12:47:352:18:567:2724:22
7:51
+0:22
20M
20.00 mi12:58:532:30:147:3111:18
8:19
+0:28
21M
21.00 mi13:07:292:38:507:348:36
8:36
+0:17
35K
21.75 mi13:13:162:44:377:345:47
7:44
-0:52
23M
23.00 mi13:23:032:54:247:359:47
7:49
+0:05
24M
24.00 mi13:30:433:02:047:357:40
7:40
-0:09
40K
24.85 mi13:37:273:08:487:366:44
7:53
+0:13
25.2M
25.20 mi13:40:183:11:397:362:51
8:16
+0:23
Finish
26.22 mi13:47:523:19:137:367:34
7:26
-0:50

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

7:15 /mi

Average Pace

7:36 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:28

89% of race

Time at Steady Pace

14:09

7% of race

Time at Slower Pace

8:36

4% of race

Average Pace: 7:36 /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 mi10:51:3222:537:2222:53
7:22
#10989
10K
6.21 mi11:14:0545:267:1922:33
7:15
#10431
15K
9.32 mi11:36:501:08:117:1922:45
7:19
#10339
20K
12.43 mi12:00:031:31:247:2123:13
7:28
#10346
Half
13.11 mi12:05:041:36:257:215:01
7:21
#10343
25K
15.53 mi12:23:131:54:347:2318:09
7:29
#10230
30K
18.64 mi12:47:352:18:567:2724:22
7:51
#10175
20M
20.00 mi12:58:532:30:147:3111:18
8:19
#10348
21M
21.00 mi13:07:292:38:507:348:36
8:36
#10361
35K
21.75 mi13:13:162:44:377:345:47
7:44
#10359
23M
23.00 mi13:23:032:54:247:359:47
7:49
#10212
24M
24.00 mi13:30:433:02:047:357:40
7:40
#10109
40K
24.85 mi13:37:273:08:487:366:44
7:53
#10034
25.2M
25.20 mi13:40:183:11:397:362:51
8:16
#9967
Finish
26.22 mi13:47:523:19:137:367:34
7:26
#9896
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi109898685868510158(Top 36%)8171(Top 51%)8171(Top 342%)
10K6.21 mi3.10 mi10431+5588386+2998386+2999980(Top 35%)8130(Top 50%)8130(Top 341%)
15K9.32 mi3.11 mi10339+928320+668320+6610158(Top 36%)8171(Top 51%)8171(Top 342%)
20K12.43 mi3.11 mi10346-78289+318289+3110516(Top 37%)8267(Top 51%)8267(Top 346%)
Half13.11 mi0.68 mi10343+38278+118278+1110424(Top 37%)8237(Top 51%)8237(Top 345%)
25K15.53 mi2.42 mi10230+1138185+938185+939839(Top 35%)7778(Top 48%)7778(Top 326%)
30K18.64 mi3.11 mi10175+558099+868099+8610227(Top 36%)7805(Top 48%)7805(Top 327%)
20M20.00 mi1.36 mi10348-1738147-488147-4812563(Top 44%)8795(Top 55%)8795(Top 369%)
21M21.00 mi1.00 mi10361-138112+358112+3511065(Top 39%)7898(Top 49%)7898(Top 331%)
35K21.75 mi0.75 mi10359+28088+248088+2410261(Top 36%)7495(Top 47%)7495(Top 314%)
23M23.00 mi1.25 mi10212+1477967+1217967+1218676(Top 31%)6542(Top 41%)6542(Top 274%)
24M24.00 mi1.00 mi10109+1037888+797888+798893(Top 31%)6600(Top 41%)6600(Top 277%)
40K24.85 mi0.85 mi10034+757821+677821+679282(Top 33%)6675(Top 41%)6675(Top 280%)
25.2M25.20 mi0.35 mi9967+677768+537768+537444(Top 26%)5609(Top 35%)5609(Top 235%)
Finish26.22 mi1.02 mi9896+717705+637705+638664(Top 31%)6270(Top 39%)6270(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10158

Males

8171

M45-49

8171

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9980

Males

8130

M45-49

8130

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10158

Males

8171

M45-49

8171

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10516

Males

8267

M45-49

8267

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10424

Males

8237

M45-49

8237

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9839

Males

7778

M45-49

7778

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10227

Males

7805

M45-49

7805

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12563

Males

8795

M45-49

8795

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11065

Males

7898

M45-49

7898

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10261

Males

7495

M45-49

7495

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8676

Males

6542

M45-49

6542

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8893

Males

6600

M45-49

6600

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9282

Males

6675

M45-49

6675

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7444

Males

5609

M45-49

5609

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8664

Males

6270

M45-49

6270

Passing Analysis

Category:
Athletes Passed
2358*
Passed By
1263
Net Change
+1093
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10989
5K → 10K62668+558#10989#10431
10K → 15K216124+92#10431#10339
15K → 20K172178-7#10339#10346
20K → Half3128+3#10346#10343
Half → 25K20895+113#10343#10230
25K → 30K265209+55#10230#10175
30K → 20M75248-173#10175#10348
20M → 21M106119-13#10348#10361
21M → 35K5553+2#10361#10359
35K → 23M17932+147#10359#10212
23M → 24M12724+103#10212#10109
24M → 40K11742+75#10109#10034
40K → 25.2M75*8+67#10034#9967
25.2M → Finish10635+71#9967#9896
TOTALS2358*1263+1093

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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