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BOSTON MARATHON 2025

Huy Son

Bib: 7760•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 11%
Division (M40-44)
#0 / 2247
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:31
Rank: #4620
Start → 5K
20:31 | 6:36/mi
10K· 6.21 mi
41:27
Rank: #5099 (-479)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:02:23
Rank: #5185 (-86)
10K → 15K
20:56 | 6:44/mi
20K· 12.43 mi
1:23:37
Rank: #5250 (-65)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:28:13
Rank: #5260 (-10)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:56
Rank: #5311 (-51)
Half → 25K
16:43 | 6:54/mi
30K· 18.64 mi
2:07:11
Rank: #5349 (-38)
25K → 30K
22:15 | 7:10/mi
20M
2:16:51
Rank: #5290 (+59)
30K → 20M
9:40 | 7:07/mi
21M
2:24:21
Rank: #5224 (+66)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:29:11
Rank: #5061 (+163)
21M → 35K
4:50 | 6:28/mi
23M
2:37:30
Rank: #4764 (+297)
35K → 23M
8:19 | 6:39/mi
24M
2:44:05
Rank: #4604 (+160)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:49:45
Rank: #4452 (+152)
24M → 40K
5:40 | 6:38/mi
25.2M
2:52:17
Rank: #4407 (+45)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:58:45
Rank: #4268 (+139)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:13
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:30:32
Pace6:54 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1520:316:3620:31
6:36
-
10K
6.21 mi10:49:1141:276:4020:56
6:44
+0:08
15K
9.32 mi11:10:071:02:236:4220:56
6:44
0:00
20K
12.43 mi11:31:211:23:376:4421:14
6:50
+0:06
Half
13.11 mi11:35:571:28:136:444:36
6:45
-0:05
25K
15.53 mi11:52:401:44:566:4516:43
6:54
+0:09
30K
18.64 mi12:14:552:07:116:4922:15
7:10
+0:16
20M
20.00 mi12:24:352:16:516:519:40
7:07
-0:03
21M
21.00 mi12:32:052:24:216:527:30
7:30
+0:23
35K
21.75 mi12:36:552:29:116:524:50
6:28
-1:02
23M
23.00 mi12:45:142:37:306:518:19
6:39
+0:11
24M
24.00 mi12:51:492:44:056:506:35
6:35
-0:04
40K
24.85 mi12:57:292:49:456:505:40
6:38
+0:03
25.2M
25.20 mi13:00:012:52:176:502:32
7:21
+0:43
Finish
26.22 mi13:06:292:58:456:496:28
6:21
-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

6:21 /mi

Average Pace

6:49 /mi

Slowest Pace

7:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:48

77% of race

Time at Steady Pace

34:27

19% of race

Time at Slower Pace

7:30

4% of race

Average Pace: 6:49 /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 mi10:28:1520:316:3620:31
6:36
#4620
10K
6.21 mi10:49:1141:276:4020:56
6:44
#5099
15K
9.32 mi11:10:071:02:236:4220:56
6:44
#5185
20K
12.43 mi11:31:211:23:376:4421:14
6:50
#5250
Half
13.11 mi11:35:571:28:136:444:36
6:45
#5260
25K
15.53 mi11:52:401:44:566:4516:43
6:54
#5311
30K
18.64 mi12:14:552:07:116:4922:15
7:10
#5349
20M
20.00 mi12:24:352:16:516:519:40
7:07
#5290
21M
21.00 mi12:32:052:24:216:527:30
7:30
#5224
35K
21.75 mi12:36:552:29:116:524:50
6:28
#5061
23M
23.00 mi12:45:142:37:306:518:19
6:39
#4764
24M
24.00 mi12:51:492:44:056:506:35
6:35
#4604
40K
24.85 mi12:57:292:49:456:505:40
6:38
#4452
25.2M
25.20 mi13:00:012:52:176:502:32
7:21
#4407
Finish
26.22 mi13:06:292:58:456:496:28
6:21
#4268
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4620433243325425(Top 19%)4984(Top 31%)4984(Top 222%)
10K6.21 mi3.10 mi5099-4794751-4194751-4195681(Top 20%)5210(Top 32%)5210(Top 232%)
15K9.32 mi3.11 mi5185-864820-694820-695425(Top 19%)4984(Top 31%)4984(Top 222%)
20K12.43 mi3.11 mi5250-654864-444864-445623(Top 20%)5126(Top 32%)5126(Top 228%)
Half13.11 mi0.68 mi5260-104869-54869-55558(Top 20%)5078(Top 32%)5078(Top 226%)
25K15.53 mi2.42 mi5311-514898-294898-295592(Top 20%)5066(Top 31%)5066(Top 225%)
30K18.64 mi3.11 mi5349-384909-114909-115668(Top 20%)5065(Top 31%)5065(Top 225%)
20M20.00 mi1.36 mi5290+594849+604849+604715(Top 17%)4256(Top 26%)4256(Top 189%)
21M21.00 mi1.00 mi5224+664788+614788+614592(Top 16%)4062(Top 25%)4062(Top 181%)
35K21.75 mi0.75 mi5061+1634645+1434645+1432276(Top 8%)2128(Top 13%)2128(Top 95%)
23M23.00 mi1.25 mi4764+2974382+2634382+2632013(Top 7%)1883(Top 12%)1883(Top 84%)
24M24.00 mi1.00 mi4604+1604238+1444238+1442419(Top 9%)2235(Top 14%)2235(Top 99%)
40K24.85 mi0.85 mi4452+1524099+1394099+1392072(Top 7%)1910(Top 12%)1910(Top 85%)
25.2M25.20 mi0.35 mi4407+454057+424057+422739(Top 10%)2441(Top 15%)2441(Top 109%)
Finish26.22 mi1.02 mi4268+1393928+1293928+1292084(Top 7%)1911(Top 12%)1911(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5425

Males

4984

M40-44

4984

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5681

Males

5210

M40-44

5210

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5425

Males

4984

M40-44

4984

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5623

Males

5126

M40-44

5126

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5558

Males

5078

M40-44

5078

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5592

Males

5066

M40-44

5066

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5668

Males

5065

M40-44

5065

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4715

Males

4256

M40-44

4256

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4592

Males

4062

M40-44

4062

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2276

Males

2128

M40-44

2128

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2013

Males

1883

M40-44

1883

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2419

Males

2235

M40-44

2235

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2072

Males

1910

M40-44

1910

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2739

Males

2441

M40-44

2441

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2084

Males

1911

M40-44

1911

Passing Analysis

Category:
Athletes Passed
1711
Passed By
1359
Net Change
+352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4620
5K → 10K47526-479#4620#5099
10K → 15K101187-86#5099#5185
15K → 20K103168-65#5185#5250
20K → Half2535-10#5250#5260
Half → 25K96147-51#5260#5311
25K → 30K155193-38#5311#5349
30K → 20M10445+59#5349#5290
20M → 21M11448+66#5290#5224
21M → 35K1641+163#5224#5061
35K → 23M2970+297#5061#4764
23M → 24M1633+160#4764#4604
24M → 40K1531+152#4604#4452
40K → 25.2M450+45#4452#4407
25.2M → Finish1445+139#4407#4268
TOTALS17111359+352
📊

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