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BOSTON MARATHON 2025

Natthakul Srisan

Bib: 28812•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:29
Rank: #20016
Start → 5K
26:29 | 8:31/mi
10K· 6.21 mi
51:52
Rank: #18899 (+1117)
5K → 10K
25:23 | 8:10/mi
15K· 9.32 mi
1:17:06
Rank: #18222 (+677)
10K → 15K
25:14 | 8:07/mi
20K· 12.43 mi
1:42:46
Rank: #17810 (+412)
15K → 20K
25:40 | 8:16/mi
Half· 13.11 mi
1:48:18
Rank: #17745 (+65)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:08:36
Rank: #17471 (+274)
Half → 25K
20:18 | 8:22/mi
30K· 18.64 mi
2:37:08
Rank: #17666 (-195)
25K → 30K
28:32 | 9:11/mi
20M
2:49:53
Rank: #17743 (-77)
30K → 20M
12:45 | 9:23/mi
21M
3:00:49
Rank: #18068 (-325)
20M → 21M
10:56 | 10:56/mi
35K· 21.75 mi
3:08:29
Rank: #18333 (-265)
21M → 35K
7:40 | 10:15/mi
23M
3:20:56
Rank: #18495 (-162)
35K → 23M
12:27 | 9:57/mi
24M
3:30:30
Rank: #18587 (-92)
23M → 24M
9:34 | 9:34/mi
40K· 24.85 mi
3:38:29
Rank: #18543 (+44)
24M → 40K
7:59 | 9:20/mi
25.2M
3:42:09
Rank: #18572 (-29)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:51:23
Rank: #18618 (-46)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:18
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time2:03:05
Pace9:23 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0726:298:3126:29
8:31
-
10K
6.21 mi12:10:3051:528:2125:23
8:10
-0:21
15K
9.32 mi12:35:441:17:068:1625:14
8:07
-0:03
20K
12.43 mi13:01:241:42:468:1625:40
8:16
+0:09
Half
13.11 mi13:06:561:48:188:165:32
8:07
-0:09
25K
15.53 mi13:27:142:08:368:1720:18
8:22
+0:15
30K
18.64 mi13:55:462:37:088:2628:32
9:11
+0:49
20M
20.00 mi14:08:312:49:538:3012:45
9:23
+0:12
21M
21.00 mi14:19:273:00:498:3710:56
10:56
+1:33
35K
21.75 mi14:27:073:08:298:407:40
10:15
-0:41
23M
23.00 mi14:39:343:20:568:4412:27
9:57
-0:18
24M
24.00 mi14:49:083:30:308:469:34
9:34
-0:23
40K
24.85 mi14:57:073:38:298:477:59
9:20
-0:14
25.2M
25.20 mi15:00:473:42:098:493:40
10:38
+1:18
Finish
26.22 mi15:10:013:51:238:509:14
9:04
-1:34

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

8:07 /mi

Average Pace

8:50 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:36

56% of race

Time at Steady Pace

1:08:04

29% of race

Time at Slower Pace

34:43

15% of race

Average Pace: 8:49 /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 mi11:45:0726:298:3126:29
8:31
#20016
10K
6.21 mi12:10:3051:528:2125:23
8:10
#18899
15K
9.32 mi12:35:441:17:068:1625:14
8:07
#18222
20K
12.43 mi13:01:241:42:468:1625:40
8:16
#17810
Half
13.11 mi13:06:561:48:188:165:32
8:07
#17745
25K
15.53 mi13:27:142:08:368:1720:18
8:22
#17471
30K
18.64 mi13:55:462:37:088:2628:32
9:11
#17666
20M
20.00 mi14:08:312:49:538:3012:45
9:23
#17743
21M
21.00 mi14:19:273:00:498:3710:56
10:56
#18068
35K
21.75 mi14:27:073:08:298:407:40
10:15
#18333
23M
23.00 mi14:39:343:20:568:4412:27
9:57
#18495
24M
24.00 mi14:49:083:30:308:469:34
9:34
#18587
40K
24.85 mi14:57:073:38:298:477:59
9:20
#18543
25.2M
25.20 mi15:00:473:42:098:493:40
10:38
#18572
Finish
26.22 mi15:10:013:51:238:509:14
9:04
#18618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20016124481244816885(Top 59%)11174(Top 69%)11174(Top 497%)
10K6.21 mi3.10 mi18899+111711997+45111997+45117687(Top 62%)11529(Top 72%)11529(Top 513%)
15K9.32 mi3.11 mi18222+67711712+28511712+28516885(Top 59%)11174(Top 69%)11174(Top 497%)
20K12.43 mi3.11 mi17810+41211531+18111531+18116696(Top 59%)11050(Top 69%)11050(Top 492%)
Half13.11 mi0.68 mi17745+6511501+3011501+3016661(Top 59%)11056(Top 69%)11056(Top 492%)
25K15.53 mi2.42 mi17471+27411379+12211379+12216379(Top 58%)10818(Top 67%)10818(Top 481%)
30K18.64 mi3.11 mi17666-19511398-1911398-1918567(Top 65%)11648(Top 72%)11648(Top 518%)
20M20.00 mi1.36 mi17743-7711404-611404-618659(Top 66%)11525(Top 72%)11525(Top 513%)
21M21.00 mi1.00 mi18068-32511545-14111545-14121203(Top 75%)12590(Top 78%)12590(Top 560%)
35K21.75 mi0.75 mi18333-26511638-9311638-9322528(Top 79%)13167(Top 82%)13167(Top 586%)
23M23.00 mi1.25 mi18495-16211681-4311681-4320290(Top 71%)12044(Top 75%)12044(Top 536%)
24M24.00 mi1.00 mi18587-9211695-1411695-1419849(Top 70%)11791(Top 73%)11791(Top 525%)
40K24.85 mi0.85 mi18543+4411646+4911646+4918008(Top 63%)10834(Top 67%)10834(Top 482%)
25.2M25.20 mi0.35 mi18572-2911643+311643+319447(Top 68%)11521(Top 72%)11521(Top 513%)
Finish26.22 mi1.02 mi18618-4611655-1211655-1219318(Top 68%)11495(Top 71%)11495(Top 512%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16885

Males

11174

M40-44

11174

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17687

Males

11529

M40-44

11529

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16885

Males

11174

M40-44

11174

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16696

Males

11050

M40-44

11050

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16661

Males

11056

M40-44

11056

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16379

Males

10818

M40-44

10818

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18567

Males

11648

M40-44

11648

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18659

Males

11525

M40-44

11525

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21203

Males

12590

M40-44

12590

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22528

Males

13167

M40-44

13167

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20290

Males

12044

M40-44

12044

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19849

Males

11791

M40-44

11791

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

18008

Males

10834

M40-44

10834

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19447

Males

11521

M40-44

11521

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19318

Males

11495

M40-44

11495

Passing Analysis

Category:
Athletes Passed
3252
Passed By
1854
Net Change
+1398
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20016
5K → 10K114831+1117#20016#18899
10K → 15K69619+677#18899#18222
15K → 20K43826+412#18222#17810
20K → Half738+65#17810#17745
Half → 25K31137+274#17745#17471
25K → 30K160355-195#17471#17666
30K → 20M96173-77#17666#17743
20M → 21M28353-325#17743#18068
21M → 35K21286-265#18068#18333
35K → 23M66228-162#18333#18495
23M → 24M47139-92#18495#18587
24M → 40K9753+44#18587#18543
40K → 25.2M2554-29#18543#18572
25.2M → Finish4692-46#18572#18618
TOTALS32521854+1398
📊

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