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BOSTON MARATHON 2025

Dennis Hong

Bib: 609•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 4%
Division (M18-39)
#0 / 5642
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:57
Rank: #566
Start → 5K
17:57 | 5:47/mi
10K· 6.21 mi
35:53
Rank: #560 (+6)
5K → 10K
17:56 | 5:46/mi
15K· 9.32 mi
53:46
Rank: #526 (+34)
10K → 15K
17:53 | 5:45/mi
20K· 12.43 mi
1:11:52
Rank: #500 (+26)
15K → 20K
18:06 | 5:50/mi
Half· 13.11 mi
1:15:46
Rank: #499 (+1)
20K → Half
3:54 | 5:43/mi
25K· 15.53 mi
1:29:51
Rank: #475 (+24)
Half → 25K
14:05 | 5:49/mi
30K· 18.64 mi
1:48:52
Rank: #490 (-15)
25K → 30K
19:01 | 6:07/mi
20M
1:57:17
Rank: #496 (-6)
30K → 20M
8:25 | 6:12/mi
21M
2:04:05
Rank: #520 (-24)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:08:43
Rank: #533 (-13)
21M → 35K
4:38 | 6:12/mi
23M
2:16:52
Rank: #561 (-28)
35K → 23M
8:09 | 6:31/mi
24M
2:23:13
Rank: #571 (-10)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:28:44
Rank: #590 (-19)
24M → 40K
5:31 | 6:27/mi
25.2M
2:31:11
Rank: #597 (-7)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:37:40
Rank: #620 (-23)
25.2M → Finish
6:29 | 6:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:46
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:21:54
Pace6:15 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0217:575:4717:57
5:47
-
10K
6.21 mi10:35:5835:535:4617:56
5:46
-0:01
15K
9.32 mi10:53:5153:465:4617:53
5:45
-0:01
20K
12.43 mi11:11:571:11:525:4718:06
5:50
+0:05
Half
13.11 mi11:15:511:15:465:473:54
5:43
-0:07
25K
15.53 mi11:29:561:29:515:4714:05
5:49
+0:06
30K
18.64 mi11:48:571:48:525:5019:01
6:07
+0:18
20M
20.00 mi11:57:221:57:175:528:25
6:12
+0:05
21M
21.00 mi12:04:102:04:055:556:48
6:48
+0:36
35K
21.75 mi12:08:482:08:435:554:38
6:12
-0:36
23M
23.00 mi12:16:572:16:525:578:09
6:31
+0:19
24M
24.00 mi12:23:182:23:135:586:21
6:21
-0:10
40K
24.85 mi12:28:492:28:445:595:31
6:27
+0:06
25.2M
25.20 mi12:31:162:31:116:002:27
7:06
+0:39
Finish
26.22 mi12:37:452:37:406:016:29
6:22
-0:44

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

5:43 /mi

Average Pace

6:01 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:51

57% of race

Time at Steady Pace

44:54

28% of race

Time at Slower Pace

22:55

15% of race

Average Pace: 6:01 /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 mi10:18:0217:575:4717:57
5:47
#566
10K
6.21 mi10:35:5835:535:4617:56
5:46
#560
15K
9.32 mi10:53:5153:465:4617:53
5:45
#526
20K
12.43 mi11:11:571:11:525:4718:06
5:50
#500
Half
13.11 mi11:15:511:15:465:473:54
5:43
#499
25K
15.53 mi11:29:561:29:515:4714:05
5:49
#475
30K
18.64 mi11:48:571:48:525:5019:01
6:07
#490
20M
20.00 mi11:57:221:57:175:528:25
6:12
#496
21M
21.00 mi12:04:102:04:055:556:48
6:48
#520
35K
21.75 mi12:08:482:08:435:554:38
6:12
#533
23M
23.00 mi12:16:572:16:525:578:09
6:31
#561
24M
24.00 mi12:23:182:23:135:586:21
6:21
#571
40K
24.85 mi12:28:492:28:445:595:31
6:27
#590
25.2M
25.20 mi12:31:162:31:116:002:27
7:06
#597
Finish
26.22 mi12:37:452:37:406:016:29
6:22
#620
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi566526526462(Top 2%)429(Top 3%)429(Top 8%)
10K6.21 mi3.10 mi560+6522+4522+4555(Top 2%)517(Top 3%)517(Top 9%)
15K9.32 mi3.11 mi526+34488+34488+34462(Top 2%)429(Top 3%)429(Top 8%)
20K12.43 mi3.11 mi500+26464+24464+24473(Top 2%)442(Top 3%)442(Top 8%)
Half13.11 mi0.68 mi499+1463+1463+1447(Top 2%)419(Top 3%)419(Top 7%)
25K15.53 mi2.42 mi475+24439+24439+24430(Top 2%)399(Top 2%)399(Top 7%)
30K18.64 mi3.11 mi490-15453-14453-14727(Top 3%)679(Top 4%)679(Top 12%)
20M20.00 mi1.36 mi496-6457-4457-4703(Top 2%)662(Top 4%)662(Top 12%)
21M21.00 mi1.00 mi520-24478-21478-211506(Top 5%)1417(Top 9%)1417(Top 25%)
35K21.75 mi0.75 mi533-13489-11489-111170(Top 4%)1101(Top 7%)1101(Top 20%)
23M23.00 mi1.25 mi561-28516-27516-271464(Top 5%)1374(Top 9%)1374(Top 24%)
24M24.00 mi1.00 mi571-10526-10526-101449(Top 5%)1353(Top 8%)1353(Top 24%)
40K24.85 mi0.85 mi590-19544-18544-181415(Top 5%)1309(Top 8%)1309(Top 23%)
25.2M25.20 mi0.35 mi597-7551-7551-71743(Top 6%)1582(Top 10%)1582(Top 28%)
Finish26.22 mi1.02 mi620-23572-21572-212117(Top 7%)1935(Top 12%)1935(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

462

Males

429

M18-39

429

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

555

Males

517

M18-39

517

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

462

Males

429

M18-39

429

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

473

Males

442

M18-39

442

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

447

Males

419

M18-39

419

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

430

Males

399

M18-39

399

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

727

Males

679

M18-39

679

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

703

Males

662

M18-39

662

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1506

Males

1417

M18-39

1417

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1170

Males

1101

M18-39

1101

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1464

Males

1374

M18-39

1374

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1449

Males

1353

M18-39

1353

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1415

Males

1309

M18-39

1309

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1743

Males

1582

M18-39

1582

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2117

Males

1935

M18-39

1935

Passing Analysis

Category:
Athletes Passed
195
Passed By
249
Net Change
-54
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#566
5K → 10K3529+6#566#560
10K → 15K395+34#560#526
15K → 20K304+26#526#500
20K → Half32+1#500#499
Half → 25K306+24#499#475
25K → 30K1328-15#475#490
30K → 20M1016-6#490#496
20M → 21M529-24#496#520
21M → 35K518-13#520#533
35K → 23M634-28#533#561
23M → 24M717-10#561#571
24M → 40K322-19#571#590
40K → 25.2M29-7#590#597
25.2M → Finish730-23#597#620
TOTALS195249-54
📊

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