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BOSTON MARATHON 2025

Chaiwat Engtrakul

Bib: 572•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Masters (Masters Men)
#0 / 10463
Top 0.5%
Division (M45-49)
#0 / 2386
Top 0.5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
5:56/mi
18:27
↑ 97↓ 3451.5%
10K· 6.21 mi
5:51/mi
36:39
↑ 79↓ 1380.4%
15K· 9.32 mi
5:52/mi
54:54
↑ 67↓ 78
20K· 12.43 mi
5:58/mi
1:13:27
↑ 106↓ 860.1%
Half· 13.11 mi
5:47/mi
1:17:24
↑ 19↓ 370.5%
25K· 15.53 mi
5:56/mi
1:31:46
↑ 66↓ 880.2%
30K· 18.64 mi
6:02/mi
1:50:31
↑ 181↓ 1480.2%
20M
6:03/mi
1:58:44
↑ 64↓ 500.2%
21M
6:24/mi
2:05:08
↑ 106↓ 241.6%
35K· 21.75 mi
5:48/mi
2:09:28
↑ 17↓ 861.7%
23M
6:01/mi
2:17:00
↑ 23↓ 630.6%
24M
5:57/mi
2:22:57
↓ 821.3%
40K· 24.85 mi
5:52/mi
2:27:58
↓ 200.3%
25.2M
6:23/mi
2:30:10
↑ 13↓ 160.2%
Finish· 26.22 mi
5:41/mi
2:35:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:24
Pace5:54 /mi
2nd Half
Distance13.11 mi
Time1:18:34
Pace6:00 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4718:275:5618:27
5:56
-
10K
6.21 mi10:36:5936:395:5418:12
5:51
-0:05
15K
9.32 mi10:55:1454:545:5318:15
5:52
+0:01
20K
12.43 mi11:13:471:13:275:5518:33
5:58
+0:06
Half
13.11 mi11:17:441:17:245:543:57
5:47
-0:11
25K
15.53 mi11:32:061:31:465:5414:22
5:56
+0:09
30K
18.64 mi11:50:511:50:315:5618:45
6:02
+0:06
20M
20.00 mi11:59:041:58:445:568:13
6:03
+0:01
21M
21.00 mi12:05:282:05:085:586:24
6:24
+0:21
35K
21.75 mi12:09:482:09:285:574:20
5:48
-0:36
23M
23.00 mi12:17:202:17:005:577:32
6:01
+0:13
24M
24.00 mi12:23:172:22:575:575:57
5:57
-0:04
40K
24.85 mi12:28:182:27:585:575:01
5:52
-0:05
25.2M
25.20 mi12:30:302:30:105:582:12
6:23
+0:31
Finish
26.22 mi12:36:182:35:585:575:48
5:41
-0:42

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

5:41 /mi

Average Pace

5:57 /mi

Slowest Pace

6:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:22

94% of race

Time at Steady Pace

8:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:57 /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 mi10:18:4718:275:5618:27
5:56
#889
10K
6.21 mi10:36:5936:395:5418:12
5:51
#799
15K
9.32 mi10:55:1454:545:5318:15
5:52
#765
20K
12.43 mi11:13:471:13:275:5518:33
5:58
#762
Half
13.11 mi11:17:441:17:245:543:57
5:47
#747
25K
15.53 mi11:32:061:31:465:5414:22
5:56
#716
30K
18.64 mi11:50:511:50:315:5618:45
6:02
#660
20M
20.00 mi11:59:041:58:445:568:13
6:03
#632
21M
21.00 mi12:05:282:05:085:586:24
6:24
#605
35K
21.75 mi12:09:482:09:285:574:20
5:48
#584
23M
23.00 mi12:17:202:17:005:577:32
6:01
#566
24M
24.00 mi12:23:172:22:575:575:57
5:57
#557
40K
24.85 mi12:28:182:27:585:575:01
5:52
#529
25.2M
25.20 mi12:30:302:30:105:582:12
6:23
#522
Finish
26.22 mi12:36:182:35:585:575:48
5:41
#494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi889831831695(Top 2%)649(Top 4%)649(Top 27%)
10K6.21 mi3.10 mi799+90747+84747+84731(Top 3%)686(Top 4%)686(Top 29%)
15K9.32 mi3.11 mi765+34715+32715+32695(Top 2%)649(Top 4%)649(Top 27%)
20K12.43 mi3.11 mi762+3712+3712+3792(Top 3%)743(Top 5%)743(Top 31%)
Half13.11 mi0.68 mi747+15698+14698+14552(Top 2%)518(Top 3%)518(Top 22%)
25K15.53 mi2.42 mi716+31668+30668+30620(Top 2%)573(Top 4%)573(Top 24%)
30K18.64 mi3.11 mi660+56613+55613+55548(Top 2%)511(Top 3%)511(Top 21%)
20M20.00 mi1.36 mi632+28585+28585+28446(Top 2%)417(Top 3%)417(Top 17%)
21M21.00 mi1.00 mi605+27559+26559+26514(Top 2%)485(Top 3%)485(Top 20%)
35K21.75 mi0.75 mi584+21539+20539+20367(Top 1%)342(Top 2%)342(Top 14%)
23M23.00 mi1.25 mi566+18521+18521+18362(Top 1%)340(Top 2%)340(Top 14%)
24M24.00 mi1.00 mi557+9513+8513+8484(Top 2%)448(Top 3%)448(Top 19%)
40K24.85 mi0.85 mi529+28486+27486+27251(Top 0.9%)231(Top 1%)231(Top 10%)
25.2M25.20 mi0.35 mi522+7480+6480+6306(Top 1%)284(Top 2%)284(Top 12%)
Finish26.22 mi1.02 mi494+28455+25455+25353(Top 1%)330(Top 2%)330(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

695

Males

649

M45-49

649

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

731

Males

686

M45-49

686

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

695

Males

649

M45-49

649

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

792

Males

743

M45-49

743

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

552

Males

518

M45-49

518

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

620

Males

573

M45-49

573

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

548

Males

511

M45-49

511

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

446

Males

417

M45-49

417

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

514

Males

485

M45-49

485

21M→35K

21.0 - 21.8 mi

Top 1%
×7story building
+17ft-86ft

Overall

367

Males

342

M45-49

342

35K→23M

21.8 - 23.0 mi

Top 1%
×5story building
+23ft-63ft

Overall

362

Males

340

M45-49

340

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

484

Males

448

M45-49

448

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

251

Males

231

M45-49

231

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

306

Males

284

M45-49

284

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2story building
+22ft-21ft

Overall

353

Males

330

M45-49

330

Passing Analysis

Category:
Athletes Passed
483
Passed By
88
Net Change
+395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#889
5K → 10K10515+90#889#799
10K → 15K4612+34#799#765
15K → 20K2825+3#765#762
20K → Half172+15#762#747
Half → 25K376+31#747#716
25K → 30K659+56#716#660
30K → 20M302+28#660#632
20M → 21M314+27#632#605
21M → 35K210+21#605#584
35K → 23M213+18#584#566
23M → 24M156+9#566#557
24M → 40K291+28#557#529
40K → 25.2M70+7#529#522
25.2M → Finish313+28#522#494
TOTALS48388+395
📊

Passing Visuals

Category:
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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