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BOSTON MARATHON 2025

Yan Li

Bib: 13935•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M55-59)
#0 / 1648
Top 27%
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
7:28/mi
23:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:29
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:40
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:33:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:38:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:56:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:21:54
↑ 181↓ 1480.2%
20M
8:10/mi
2:33:00
↑ 64↓ 500.2%
21M
8:41/mi
2:41:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:47:37
↑ 17↓ 861.7%
23M
8:17/mi
2:57:59
↑ 23↓ 630.6%
24M
8:05/mi
3:06:04
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:13:15
↓ 200.3%
25.2M
9:17/mi
3:16:27
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:24:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:23
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:46:26
Pace8:07 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1723:117:2823:11
7:28
-
10K
6.21 mi11:17:3546:297:2923:18
7:30
+0:02
15K
9.32 mi11:40:461:09:407:2823:11
7:28
-0:02
20K
12.43 mi12:04:221:33:167:3023:36
7:36
+0:08
Half
13.11 mi12:09:291:38:237:305:07
7:30
-0:06
25K
15.53 mi12:27:561:56:507:3118:27
7:37
+0:07
30K
18.64 mi12:53:002:21:547:3725:04
8:04
+0:27
20M
20.00 mi13:04:062:33:007:3911:06
8:10
+0:06
21M
21.00 mi13:12:472:41:417:428:41
8:41
+0:31
35K
21.75 mi13:18:432:47:377:425:56
7:56
-0:45
23M
23.00 mi13:29:052:57:597:4410:22
8:17
+0:21
24M
24.00 mi13:37:103:06:047:458:05
8:05
-0:12
40K
24.85 mi13:44:213:13:157:477:11
8:24
+0:19
25.2M
25.20 mi13:47:333:16:277:483:12
9:17
+0:53
Finish
26.22 mi13:55:553:24:497:498:22
8:13
-1:04

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

7:28 /mi

Average Pace

7:49 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:50

57% of race

Time at Steady Pace

1:08:55

34% of race

Time at Slower Pace

19:04

9% of race

Average Pace: 7:49 /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 mi10:54:1723:117:2823:11
7:28
#11887
10K
6.21 mi11:17:3546:297:2923:18
7:30
#11957
15K
9.32 mi11:40:461:09:407:2823:11
7:28
#11750
20K
12.43 mi12:04:221:33:167:3023:36
7:36
#11671
Half
13.11 mi12:09:291:38:237:305:07
7:30
#11677
25K
15.53 mi12:27:561:56:507:3118:27
7:37
#11510
30K
18.64 mi12:53:002:21:547:3725:04
8:04
#11520
20M
20.00 mi13:04:062:33:007:3911:06
8:10
#11468
21M
21.00 mi13:12:472:41:417:428:41
8:41
#11457
35K
21.75 mi13:18:432:47:377:425:56
7:56
#11459
23M
23.00 mi13:29:052:57:597:4410:22
8:17
#11467
24M
24.00 mi13:37:103:06:047:458:05
8:05
#11434
40K
24.85 mi13:44:213:13:157:477:11
8:24
#11480
25.2M
25.20 mi13:47:333:16:277:483:12
9:17
#11499
Finish
26.22 mi13:55:553:24:497:498:22
8:13
#11620
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi118879122912211423(Top 40%)8799(Top 55%)8799(Top 534%)
10K6.21 mi3.10 mi11957-709139-179139-1712075(Top 43%)9183(Top 57%)9183(Top 557%)
15K9.32 mi3.11 mi11750+2079024+1159024+11511423(Top 40%)8799(Top 55%)8799(Top 534%)
20K12.43 mi3.11 mi11671+798942+828942+8211551(Top 41%)8756(Top 54%)8756(Top 531%)
Half13.11 mi0.68 mi11677-68942894211641(Top 41%)8851(Top 55%)8851(Top 537%)
25K15.53 mi2.42 mi11510+1678822+1208822+12010842(Top 38%)8316(Top 52%)8316(Top 505%)
30K18.64 mi3.11 mi11520-108747+758747+7511855(Top 42%)8600(Top 53%)8600(Top 522%)
20M20.00 mi1.36 mi11468+528679+688679+6811575(Top 41%)8324(Top 52%)8324(Top 505%)
21M21.00 mi1.00 mi11457+118635+448635+4411554(Top 41%)8147(Top 51%)8147(Top 494%)
35K21.75 mi0.75 mi11459-28613+228613+2211753(Top 41%)8200(Top 51%)8200(Top 498%)
23M23.00 mi1.25 mi11467-88571+428571+4211906(Top 42%)8188(Top 51%)8188(Top 497%)
24M24.00 mi1.00 mi11434+338526+458526+4511770(Top 41%)8043(Top 50%)8043(Top 488%)
40K24.85 mi0.85 mi11480-468508+188508+1812773(Top 45%)8414(Top 52%)8414(Top 511%)
25.2M25.20 mi0.35 mi11499-198506+28506+213290(Top 47%)8596(Top 53%)8596(Top 522%)
Finish26.22 mi1.02 mi11620-1218525-198525-1914301(Top 50%)9155(Top 57%)9155(Top 556%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11423

Males

8799

M55-59

8799

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12075

Males

9183

M55-59

9183

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11423

Males

8799

M55-59

8799

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11551

Males

8756

M55-59

8756

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11641

Males

8851

M55-59

8851

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10842

Males

8316

M55-59

8316

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11855

Males

8600

M55-59

8600

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11575

Males

8324

M55-59

8324

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11554

Males

8147

M55-59

8147

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

11753

Males

8200

M55-59

8200

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11906

Males

8188

M55-59

8188

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11770

Males

8043

M55-59

8043

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12773

Males

8414

M55-59

8414

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13290

Males

8596

M55-59

8596

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14301

Males

9155

M55-59

9155

Passing Analysis

Category:
Athletes Passed
1884
Passed By
1617
Net Change
+267
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11887
5K → 10K216286-70#11887#11957
10K → 15K28679+207#11957#11750
15K → 20K231152+79#11750#11671
20K → Half2733-6#11671#11677
Half → 25K24376+167#11677#11510
25K → 30K227237-10#11510#11520
30K → 20M14290+52#11520#11468
20M → 21M9988+11#11468#11457
21M → 35K6466-2#11457#11459
35K → 23M106114-8#11459#11467
23M → 24M10067+33#11467#11434
24M → 40K60106-46#11434#11480
40K → 25.2M3251-19#11480#11499
25.2M → Finish51172-121#11499#11620
TOTALS18841617+267
📊

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