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BOSTON MARATHON 2023

Natthasit Nimitsakulchai

Bib: 29079•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
33:02
Rank: #25026
Start → 5K
33:02 | 10:38/mi
10K· 6.21 mi
1:06:20
Rank: #25051 (-25)
5K → 10K
33:18 | 10:43/mi
15K· 9.32 mi
1:39:34
Rank: #24951 (+100)
10K → 15K
33:14 | 10:42/mi
20K· 12.43 mi
2:14:44
Rank: #24978 (-27)
15K → 20K
35:10 | 11:19/mi
Half· 13.11 mi
2:22:07
Rank: #24964 (+14)
20K → Half
7:23 | 10:49/mi
25K· 15.53 mi
2:51:44
Rank: #25087 (-123)
Half → 25K
29:37 | 12:13/mi
30K· 18.64 mi
3:32:21
Rank: #25216 (-129)
25K → 30K
40:37 | 13:04/mi
20M
3:50:59
Rank: #25277 (-61)
30K → 20M
18:38 | 13:43/mi
21M
4:06:04
Rank: #25329 (-52)
20M → 21M
15:05 | 15:05/mi
35K· 21.75 mi
4:16:06
Rank: #25362 (-33)
21M → 35K
10:02 | 13:25/mi
23M
4:34:01
Rank: #25433 (-71)
35K → 23M
17:55 | 14:19/mi
24M
4:49:04
Rank: #25517 (-84)
23M → 24M
15:03 | 15:03/mi
40K· 24.85 mi
5:02:23
Rank: #25583 (-66)
24M → 40K
13:19 | 15:34/mi
25.2M
5:07:55
Rank: #25604 (-21)
40K → 25.2M
5:32 | 16:03/mi
Finish· 26.22 mi
5:22:02
Rank: #25671 (-67)
25.2M → Finish
14:07 | 13:51/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:07
Pace10:50 /mi
2nd Half
Distance13.11 mi
Time2:59:55
Pace13:43 /mi
📊Positive Split: 26.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1833:0210:3833:02
10:38
-
10K
6.21 mi12:27:361:06:2010:4133:18
10:43
+0:05
15K
9.32 mi13:00:501:39:3410:4133:14
10:42
-0:01
20K
12.43 mi13:36:002:14:4410:5035:10
11:19
+0:37
Half
13.11 mi13:43:232:22:0710:507:23
10:49
-0:30
25K
15.53 mi14:13:002:51:4411:0329:37
12:13
+1:24
30K
18.64 mi14:53:373:32:2111:2340:37
13:04
+0:51
20M
20.00 mi15:12:153:50:5911:3318:38
13:43
+0:39
21M
21.00 mi15:27:204:06:0411:4315:05
15:05
+1:22
35K
21.75 mi15:37:224:16:0611:4710:02
13:25
-1:40
23M
23.00 mi15:55:174:34:0111:5517:55
14:19
+0:54
24M
24.00 mi16:10:204:49:0412:0315:03
15:03
+0:44
40K
24.85 mi16:23:395:02:2312:1013:19
15:34
+0:31
25.2M
25.20 mi16:29:115:07:5512:135:32
16:03
+0:29
Finish
26.22 mi16:43:185:22:0212:1714:07
13:51
-2:12

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

10:38 /mi

Average Pace

12:17 /mi

Slowest Pace

16:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:51:44

53% of race

Time at Steady Pace

1:41:19

31% of race

Time at Slower Pace

48:59

15% of race

Average Pace: 12:17 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:54:1833:0210:3833:02
10:38
#25026
10K
6.21 mi12:27:361:06:2010:4133:18
10:43
#25051
15K
9.32 mi13:00:501:39:3410:4133:14
10:42
#24951
20K
12.43 mi13:36:002:14:4410:5035:10
11:19
#24978
Half
13.11 mi13:43:232:22:0710:507:23
10:49
#24964
25K
15.53 mi14:13:002:51:4411:0329:37
12:13
#25087
30K
18.64 mi14:53:373:32:2111:2340:37
13:04
#25216
20M
20.00 mi15:12:153:50:5911:3318:38
13:43
#25277
21M
21.00 mi15:27:204:06:0411:4315:05
15:05
#25329
35K
21.75 mi15:37:224:16:0611:4710:02
13:25
#25362
23M
23.00 mi15:55:174:34:0111:5517:55
14:19
#25433
24M
24.00 mi16:10:204:49:0412:0315:03
15:03
#25517
40K
24.85 mi16:23:395:02:2312:1013:19
15:34
#25583
25.2M
25.20 mi16:29:115:07:5512:135:32
16:03
#25604
Finish
26.22 mi16:43:185:22:0212:1714:07
13:51
#25671
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25026145591455924795(Top 93%)14428(Top 95%)14428(Top 273%)
10K6.21 mi3.10 mi25051-2514569-1014569-1025045(Top 94%)14554(Top 96%)14554(Top 275%)
15K9.32 mi3.11 mi24951+10014523+4614523+4624795(Top 93%)14428(Top 95%)14428(Top 273%)
20K12.43 mi3.11 mi24978-2714514+914514+925025(Top 94%)14511(Top 96%)14511(Top 275%)
Half13.11 mi0.68 mi24964+1414504+1014504+1024700(Top 93%)14362(Top 95%)14362(Top 272%)
25K15.53 mi2.42 mi25087-12314554-5014554-5025329(Top 95%)14609(Top 96%)14609(Top 276%)
30K18.64 mi3.11 mi25216-12914588-3414588-3425480(Top 96%)14625(Top 96%)14625(Top 277%)
20M20.00 mi1.36 mi25277-6114608-2014608-2025673(Top 96%)14703(Top 97%)14703(Top 278%)
21M21.00 mi1.00 mi25329-5214616-814616-825773(Top 97%)14758(Top 97%)14758(Top 279%)
35K21.75 mi0.75 mi25362-3314625-914625-925823(Top 97%)14746(Top 97%)14746(Top 279%)
23M23.00 mi1.25 mi25433-7114654-2914654-2926006(Top 98%)14842(Top 98%)14842(Top 281%)
24M24.00 mi1.00 mi25517-8414691-3714691-3726394(Top 99%)15038(Top 99%)15038(Top 285%)
40K24.85 mi0.85 mi25583-6614719-2814719-2826330(Top 99%)14992(Top 99%)14992(Top 284%)
25.2M25.20 mi0.35 mi25604-2114726-714726-726127(Top 98%)14881(Top 98%)14881(Top 282%)
Finish26.22 mi1.02 mi25671-6714757-3114757-3126321(Top 99%)14980(Top 99%)14980(Top 283%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

24795

Males

14428

M18-39

14428

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

25045

Males

14554

M18-39

14554

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

24795

Males

14428

M18-39

14428

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

25025

Males

14511

M18-39

14511

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24700

Males

14362

M18-39

14362

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

25329

Males

14609

M18-39

14609

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

25480

Males

14625

M18-39

14625

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

25673

Males

14703

M18-39

14703

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25773

Males

14758

M18-39

14758

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25823

Males

14746

M18-39

14746

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

26006

Males

14842

M18-39

14842

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

26394

Males

15038

M18-39

15038

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26330

Males

14992

M18-39

14992

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26127

Males

14881

M18-39

14881

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

26321

Males

14980

M18-39

14980

Passing Analysis

Category:
Athletes Passed
576
Passed By
1221
Net Change
-645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25026
5K → 10K165190-25#25026#25051
10K → 15K16666+100#25051#24951
15K → 20K91118-27#24951#24978
20K → Half239+14#24978#24964
Half → 25K33156-123#24964#25087
25K → 30K38167-129#25087#25216
30K → 20M1677-61#25216#25277
20M → 21M1365-52#25277#25329
21M → 35K942-33#25329#25362
35K → 23M1283-71#25362#25433
23M → 24M185-84#25433#25517
24M → 40K470-66#25517#25583
40K → 25.2M425-21#25583#25604
25.2M → Finish168-67#25604#25671
TOTALS5761221-645
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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