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BOSTON MARATHON 2025

Phu Nguyen

Bib: 12181•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 36%
Division (M50-54)
#0 / 1996
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:51
Rank: #10882
Start → 5K
22:51 | 7:21/mi
10K· 6.21 mi
45:25
Rank: #10414 (+468)
5K → 10K
22:34 | 7:16/mi
15K· 9.32 mi
1:08:08
Rank: #10291 (+123)
10K → 15K
22:43 | 7:19/mi
20K· 12.43 mi
1:31:23
Rank: #10332 (-41)
15K → 20K
23:15 | 7:29/mi
Half· 13.11 mi
1:36:24
Rank: #10329 (+3)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:54:35
Rank: #10241 (+88)
Half → 25K
18:11 | 7:30/mi
30K· 18.64 mi
2:18:55
Rank: #10167 (+74)
25K → 30K
24:20 | 7:50/mi
20M
2:30:13
Rank: #10343 (-176)
30K → 20M
11:18 | 8:19/mi
21M
2:38:49
Rank: #10351 (-8)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
2:44:38
Rank: #10362 (-11)
21M → 35K
5:49 | 7:46/mi
23M
2:54:23
Rank: #10206 (+156)
35K → 23M
9:45 | 7:47/mi
24M
3:02:03
Rank: #10103 (+103)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:08:47
Rank: #10027 (+76)
24M → 40K
6:44 | 7:53/mi
25.2M
3:11:38
Rank: #9959 (+68)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:19:02
Rank: #9837 (+122)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:24
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:38
Pace7:50 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3122:517:2122:51
7:21
-
10K
6.21 mi11:14:0545:257:1922:34
7:16
-0:05
15K
9.32 mi11:36:481:08:087:1922:43
7:19
+0:03
20K
12.43 mi12:00:031:31:237:2123:15
7:29
+0:10
Half
13.11 mi12:05:041:36:247:215:01
7:21
-0:08
25K
15.53 mi12:23:151:54:357:2318:11
7:30
+0:09
30K
18.64 mi12:47:352:18:557:2724:20
7:50
+0:20
20M
20.00 mi12:58:532:30:137:3111:18
8:19
+0:29
21M
21.00 mi13:07:292:38:497:348:36
8:36
+0:17
35K
21.75 mi13:13:182:44:387:345:49
7:46
-0:50
23M
23.00 mi13:23:032:54:237:359:45
7:47
+0:01
24M
24.00 mi13:30:433:02:037:357:40
7:40
-0:07
40K
24.85 mi13:37:273:08:477:366:44
7:53
+0:13
25.2M
25.20 mi13:40:183:11:387:362:51
8:16
+0:23
Finish
26.22 mi13:47:423:19:027:367:24
7:16
-1:00

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

7:16 /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

2:56:17

89% of race

Time at Steady Pace

14:09

7% of race

Time at Slower Pace

8:36

4% of race

Average Pace: 7:35 /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 mi10:51:3122:517:2122:51
7:21
#10882
10K
6.21 mi11:14:0545:257:1922:34
7:16
#10414
15K
9.32 mi11:36:481:08:087:1922:43
7:19
#10291
20K
12.43 mi12:00:031:31:237:2123:15
7:29
#10332
Half
13.11 mi12:05:041:36:247:215:01
7:21
#10329
25K
15.53 mi12:23:151:54:357:2318:11
7:30
#10241
30K
18.64 mi12:47:352:18:557:2724:20
7:50
#10167
20M
20.00 mi12:58:532:30:137:3111:18
8:19
#10343
21M
21.00 mi13:07:292:38:497:348:36
8:36
#10351
35K
21.75 mi13:13:182:44:387:345:49
7:46
#10362
23M
23.00 mi13:23:032:54:237:359:45
7:47
#10206
24M
24.00 mi13:30:433:02:037:357:40
7:40
#10103
40K
24.85 mi13:37:273:08:477:366:44
7:53
#10027
25.2M
25.20 mi13:40:183:11:387:362:51
8:16
#9959
Finish
26.22 mi13:47:423:19:027:367:24
7:16
#9837
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi108828634863410077(Top 35%)8126(Top 50%)8126(Top 407%)
10K6.21 mi3.10 mi10414+4688376+2588376+25810026(Top 35%)8158(Top 51%)8158(Top 409%)
15K9.32 mi3.11 mi10291+1238296+808296+8010077(Top 35%)8126(Top 50%)8126(Top 407%)
20K12.43 mi3.11 mi10332-418278+188278+1810603(Top 37%)8309(Top 52%)8309(Top 416%)
Half13.11 mi0.68 mi10329+38269+98269+910419(Top 37%)8232(Top 51%)8232(Top 412%)
25K15.53 mi2.42 mi10241+888191+788191+789930(Top 35%)7830(Top 49%)7830(Top 392%)
30K18.64 mi3.11 mi10167+748094+978094+9710152(Top 36%)7770(Top 48%)7770(Top 389%)
20M20.00 mi1.36 mi10343-1768145-518145-5112561(Top 44%)8793(Top 55%)8793(Top 441%)
21M21.00 mi1.00 mi10351-88105+408105+4011064(Top 39%)7897(Top 49%)7897(Top 396%)
35K21.75 mi0.75 mi10362-118091+148091+1410582(Top 37%)7651(Top 48%)7651(Top 383%)
23M23.00 mi1.25 mi10206+1567963+1287963+1288492(Top 30%)6440(Top 40%)6440(Top 323%)
24M24.00 mi1.00 mi10103+1037884+797884+798891(Top 31%)6598(Top 41%)6598(Top 331%)
40K24.85 mi0.85 mi10027+767817+677817+679280(Top 33%)6673(Top 41%)6673(Top 334%)
25.2M25.20 mi0.35 mi9959+687764+537764+537441(Top 26%)5606(Top 35%)5606(Top 281%)
Finish26.22 mi1.02 mi9837+1227665+997665+997497(Top 26%)5630(Top 35%)5630(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

10077

Males

8126

M50-54

8126

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

10026

Males

8158

M50-54

8158

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

10077

Males

8126

M50-54

8126

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10603

Males

8309

M50-54

8309

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10419

Males

8232

M50-54

8232

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9930

Males

7830

M50-54

7830

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10152

Males

7770

M50-54

7770

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12561

Males

8793

M50-54

8793

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11064

Males

7897

M50-54

7897

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10582

Males

7651

M50-54

7651

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8492

Males

6440

M50-54

6440

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8891

Males

6598

M50-54

6598

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9280

Males

6673

M50-54

6673

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7441

Males

5606

M50-54

5606

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7497

Males

5630

M50-54

5630

Passing Analysis

Category:
Athletes Passed
2325*
Passed By
1278
Net Change
+1045
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10882
5K → 10K55284+468#10882#10414
10K → 15K231108+123#10414#10291
15K → 20K164204-41#10291#10332
20K → Half3633+3#10332#10329
Half → 25K193105+88#10329#10241
25K → 30K271196+74#10241#10167
30K → 20M75251-176#10167#10343
20M → 21M109117-8#10343#10351
21M → 35K5263-11#10351#10362
35K → 23M18529+156#10362#10206
23M → 24M12724+103#10206#10103
24M → 40K11539+76#10103#10027
40K → 25.2M74*6+68#10027#9959
25.2M → Finish14119+122#9959#9837
TOTALS2325*1278+1045

* 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