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BOSTON MARATHON 2025

Thien Dang

Bib: 3915•M

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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3583
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
40:03
Rank: #3379 (+204)
5K → 10K
19:58 | 6:26/mi
15K· 9.32 mi
59:54
Rank: #3193 (+186)
10K → 15K
19:51 | 6:23/mi
20K· 12.43 mi
1:19:43
Rank: #2960 (+233)
15K → 20K
19:49 | 6:23/mi
Half· 13.11 mi
1:23:59
Rank: #2903 (+57)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:39:14
Rank: #2676 (+227)
Half → 25K
15:15 | 6:17/mi
30K· 18.64 mi
1:59:06
Rank: #2384 (+292)
25K → 30K
19:52 | 6:24/mi
20M
2:07:53
Rank: #2290 (+94)
30K → 20M
8:47 | 6:28/mi
21M
2:15:40
Rank: #2443 (-153)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:24:47
Rank: #3565 (-1122)
21M → 35K
9:07 | 12:11/mi
23M
2:46:13
Rank: #7295 (-3730)
35K → 23M
21:26 | 17:07/mi
24M
2:56:02
Rank: #7987 (-692)
23M → 24M
9:49 | 9:49/mi
40K· 24.85 mi
3:03:56
Rank: #8361 (-374)
24M → 40K
7:54 | 9:14/mi
25.2M
3:07:23
Rank: #8530 (-169)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:16:03
Rank: #8874 (-344)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:59
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:52:04
Pace8:33 /mi
📊Positive Split: 33.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1920:056:2820:05
6:28
-
10K
6.21 mi10:43:1740:036:2719:58
6:26
-0:02
15K
9.32 mi11:03:0859:546:2619:51
6:23
-0:03
20K
12.43 mi11:22:571:19:436:2519:49
6:23
0:00
Half
13.11 mi11:27:131:23:596:244:16
6:15
-0:08
25K
15.53 mi11:42:281:39:146:2315:15
6:17
+0:02
30K
18.64 mi12:02:201:59:066:2319:52
6:24
+0:07
20M
20.00 mi12:11:072:07:536:248:47
6:28
+0:04
21M
21.00 mi12:18:542:15:406:287:47
7:47
+1:19
35K
21.75 mi12:28:012:24:476:399:07
12:11
+4:24
23M
23.00 mi12:49:272:46:137:1421:26
17:07
+4:56
24M
24.00 mi12:59:162:56:027:209:49
9:49
-7:18
40K
24.85 mi13:07:103:03:567:247:54
9:14
-0:35
25.2M
25.20 mi13:10:373:07:237:263:27
10:00
+0:46
Finish
26.22 mi13:19:173:16:037:298:40
8:30
-1:30

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

6:15 /mi

Average Pace

7:29 /mi

Slowest Pace

17:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:15:40

69% of race

Time at Slower Pace

1:00:23

31% of race

Average Pace: 7:29 /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 mi10:23:1920:056:2820:05
6:28
#3583
10K
6.21 mi10:43:1740:036:2719:58
6:26
#3379
15K
9.32 mi11:03:0859:546:2619:51
6:23
#3193
20K
12.43 mi11:22:571:19:436:2519:49
6:23
#2960
Half
13.11 mi11:27:131:23:596:244:16
6:15
#2903
25K
15.53 mi11:42:281:39:146:2315:15
6:17
#2676
30K
18.64 mi12:02:201:59:066:2319:52
6:24
#2384
20M
20.00 mi12:11:072:07:536:248:47
6:28
#2290
21M
21.00 mi12:18:542:15:406:287:47
7:47
#2443
35K
21.75 mi12:28:012:24:476:399:07
12:11
#3565
23M
23.00 mi12:49:272:46:137:1421:26
17:07
#7295
24M
24.00 mi12:59:162:56:027:209:49
9:49
#7987
40K
24.85 mi13:07:103:03:567:247:54
9:14
#8361
25.2M
25.20 mi13:10:373:07:237:263:27
10:00
#8530
Finish
26.22 mi13:19:173:16:037:298:40
8:30
#8874
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3583340434042885(Top 10%)2750(Top 17%)2750(Top 49%)
10K6.21 mi3.10 mi3379+2043209+1953209+1953231(Top 11%)3072(Top 19%)3072(Top 54%)
15K9.32 mi3.11 mi3193+1863037+1723037+1722885(Top 10%)2750(Top 17%)2750(Top 49%)
20K12.43 mi3.11 mi2960+2332820+2172820+2172423(Top 9%)2312(Top 14%)2312(Top 41%)
Half13.11 mi0.68 mi2903+572768+522768+522313(Top 8%)2214(Top 14%)2214(Top 39%)
25K15.53 mi2.42 mi2676+2272554+2142554+2141818(Top 6%)1728(Top 11%)1728(Top 31%)
30K18.64 mi3.11 mi2384+2922274+2802274+2801540(Top 5%)1458(Top 9%)1458(Top 26%)
20M20.00 mi1.36 mi2290+942185+892185+891511(Top 5%)1429(Top 9%)1429(Top 25%)
21M21.00 mi1.00 mi2443-1532330-1452330-1456111(Top 22%)5137(Top 32%)5137(Top 91%)
35K21.75 mi0.75 mi3565-11223356-10263356-102626104(Top 92%)14886(Top 92%)14886(Top 264%)
23M23.00 mi1.25 mi7295-37306287-29316287-293128286(Top 100%)16024(Top 99%)16024(Top 284%)
24M24.00 mi1.00 mi7987-6926695-4086695-40820757(Top 73%)12217(Top 76%)12217(Top 217%)
40K24.85 mi0.85 mi8361-3746896-2016896-20117503(Top 62%)10591(Top 66%)10591(Top 188%)
25.2M25.20 mi0.35 mi8530-1696976-806976-8016948(Top 60%)10313(Top 64%)10313(Top 183%)
Finish26.22 mi1.02 mi8874-3447135-1597135-15916211(Top 57%)10019(Top 62%)10019(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2885

Males

2750

M18-39

2750

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3231

Males

3072

M18-39

3072

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2885

Males

2750

M18-39

2750

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2423

Males

2312

M18-39

2312

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2313

Males

2214

M18-39

2214

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1818

Males

1728

M18-39

1728

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1540

Males

1458

M18-39

1458

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1511

Males

1429

M18-39

1429

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6111

Males

5137

M18-39

5137

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

26104

Males

14886

M18-39

14886

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

28286

Males

16024

M18-39

16024

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20757

Males

12217

M18-39

12217

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17503

Males

10591

M18-39

10591

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16948

Males

10313

M18-39

10313

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

16211

Males

10019

M18-39

10019

Passing Analysis

Category:
Athletes Passed
1447
Passed By
6738
Net Change
-5291
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3583
5K → 10K26359+204#3583#3379
10K → 15K20822+186#3379#3193
15K → 20K2407+233#3193#2960
20K → Half581+57#2960#2903
Half → 25K2292+227#2903#2676
25K → 30K2942+292#2676#2384
30K → 20M973+94#2384#2290
20M → 21M13166-153#2290#2443
21M → 35K11123-1122#2443#3565
35K → 23M23732-3730#3565#7295
23M → 24M5697-692#7295#7987
24M → 40K15389-374#7987#8361
40K → 25.2M11180-169#8361#8530
25.2M → Finish11355-344#8530#8874
TOTALS14476738-5291
📊

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